Butynol® Membranes
Butynol Membranes
®
2
Butynol® Colour Range
3-25
Butynol® Roofing
4-8
Butynol® and Eco Butynol®
BRANZ Appraisal
27-29
Eco Butynol®
31-34
Undertile BRANZ Appraisal
35-38
Undertile Butynol®
39-40
Butynol® Shingles
41-43
Optima
45-46
Bonding/Seam Primer
47-49
Butynol® Sealant
ARDEX Butynol® Colour Range
Dove Grey
1.2mm,1.5mm
thicknessess
Dark Grey
1.5mm thickness
Terracotta
1.5mm thickness
Light Green
1.5mm thickness
Dark Green
1.5mm thickness
Black
1.0mm, 1.5mm thicknessess
Colours shown may vary from actual material samples.
Please check actual colour of material before ordering.
ARDEX Butynol
®
BRANZ Appraised,
E2/AS1 Acceptable Solution
DISCLAIMER The technical details, recommendations and other information contained in this data sheet are given in good faith and
represent the best of our knowledge and experience at the time of printing. It is your responsibility to ensure that our products are
used and handled correctly and in accordance with any applicable New Zealand Standard, our instructions and recommendations
and only for the uses they are intended. We also reserve the right to update information without prior notice to you to reflect
our ongoing research and development program. Country specific recommendations, depending on local standards, codes of
practice, building regulations or industry guidelines, may effect specific installation recommendations. The supply of our products
and services is also subject to certain terms, warranties and exclusions, which may have already been disclosed to you in prior
dealings or are otherwise available to you on request. You should make yourself familiar with them.
Product
1.1
Butynol® and ECO Butynol® Roofing Membranes are synthetic rubber waterproofing
membranes designed to be used on roofs and decks.
1.2
The products are supplied as single-ply, flexible synthetic rubber sheet in roll form,
with the ECO Butynol® having polypropylene filaments welded to the underside for better
wetting by water based adhesives. The products are installed as single layer systems.
Appraisal No.436 [2011]
BRANZ Appraisals
Technical Assessments of products
for building and construction
BRANZ
APPRAISAL
No. 436 (2011)
This Appraisal replaces BRANZ
Appraisal No. 436 (2005) dated
11 July 2005.
Amended 15 July 2011.
BuTyNoL ANd ECo
BuTyNoL® RooFINg
MEMBRANES
®
Ardex New Zealand Limited
P O Box 19549
Woolston
Christchurch
Tel: 03 384 3029
Fax: 03 384 9779
www.butynol.co.nz
BRANZ Limited
Private Bag 50 908
Porirua City
New Zealand
Tel: +64 4 237 1170
Fax: +64 4 237 1171
www.branz.co.nz
1mm Butynol laid in 1972. The main auditorium roof is still in service after 39 years.
Some of the other low slope roofs are due to be upgraded with new Butynol during
current building refurbishment.
Scope
2.1
Butynol® and ECO Butynol® Roofing Membranes have been appraised for use as
waterproofing membranes for buildings within the following scope:
VË scope limitations of NZBC Acceptable Solution E2/AS1, Paragraph 1.1; and,
VË with timber supporting structures designed and constructed in accordance with the
NZBC; and,
VË with nominally flat or pitched roofs constructed to drain water to gutters and drain
outlets complying with NZBC; and,
VË with substrates of plywood sheet; and,
VË with decks that have a maximum size of 40m2.
2.2
Butynol® and ECO Butynol® Roofing Membranes have also been appraised for use
as waterproofing membranes for external reinforced concrete and plywood roofs, pedestrian
decks and balconies for buildings within the following scope:
VË up to 3 storeys with a maximum height from ground to eaves of 10m and with a floor
plan area limited only by seismic and structural control joints; and,
VË with the reinforced concrete structure designed and constructed in accordance with the
NZBC; and,
VË with timber supporting structures designed and constructed in accordance with the
NZBC; and,
VË subjected to maximum wind pressures (refer Paragraph 8.1); and,
VË with nominally flat, curved or pitched roofs constructed to drain water to gutters and
drain outlets complying with NZBC.
2.3
This Appraisal is limited to roofs, decks and balconies within the following scope:
VË constructed to suitable falls (Refer Paragraph 13.1 – 13.9); and,
VË with no steps within the deck level, no integral roof gardens and no down pipe
discharging directly onto the deck.
2.4
The design and construction of the substrate and movement and control joints
is specific to each building, and therefore the responsibility of the building designer and
building contractor and is outside the scope of this Appraisal.
2.5
The membranes must be installed by Ardex New Zealand Limited approved
applicators.
Readers are advised to check the validity of this Appraisal by referring to the Valid Appraisals listing on the BRANZ website, or by contacting BRANZ.
Flashing Tape
VË A malleable tape for moulding gussets, pipe flashings and
awkward situations. Supplied in widths of 50-100mm x 5
metres long.
Butynol Sealant
Building Regulations
New Zealand Building Code (NZBC)
3.1
In the opinion of BRANZ, Butynol ® and ECO
Butynol® Roofing Membranes, if designed, used, installed and
maintained in accordance with the statements and conditions
of this Appraisal, will meet the following provisions of the
NZBC:
Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years.
Butynol® and ECO Butynol® Roofing Membranes meet this
requirement. See Paragraph 10.1.
Clause E2 EXTERNAL MOISTURE: Performance E2.3.1 and
E2.3.2. Roofs, Decks and balconies incorporating Butynol® and
ECO Butynol® Roofing Membranes meets these requirements.
See Paragraphs 13.1 – 13.3.
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance
F2.3.1. Butynol® and ECO Butynol® Roofing Membranes meet
this requirement and will not present a health hazard to people.
VË A specially designed and formulated sealant for sealing
Butynol® flashings into chases. Supplied in 375mm tubes.
Handling and Storage
5.1
Handling and storage of all materials whether on or
off site is under the control of the Ardex New Zealand Limited
approved applicators. Dry storage must be provided for all
products and the rolls of membrane must be stored in an upright
position.
Technical Literature
6.1
Refer to the Appraisals listing on the BRANZ website for
details of the current Technical Literature for the Butynol® and
ECO Butynol® Roofing Membranes. The Technical Literature
must be read in conjunction with this Appraisal. All aspects
of design, use, installation and maintenance contained in the
Technical Literature and within the scope of this Appraisal must
be followed.
3.2
This Appraisal appraises an Acceptable Solution
in terms of New Zealand Building Code compliance and the
product complies with NZBC Acceptable Solution E2/AS1
Paragraph 8.5. This product is also appraised as an Alternative
Solution as outlined in Paragraph 2.2.
Technical Specification
Design Information
4.1
Materials supplied by Ardex New Zealand Limited are
as follows:
Butynol® Membranes
VË All membranes are single-ply, flexible synthetic rubber
membranes. They are supplied in rolls nominally 1.4 metres
wide by 17.86 metres long. Each roll is packed in polythene
wrapper trademarked ‘Butynol®’ with thickness identified.
Gauges available are 1.0, 1.5 and 2.25mm in black and
1.5mm in six colours.
ECO Butynol® Membrane
VË All membranes are single-ply, flexible synthetic rubber
membranes with polypropylene filaments welded to the
underside. They are supplied in rolls nominally 1.4 metres
wide by 17.86 metres long. Gauges available are 1.0, 1.5
and 2.25mm in black, 1.2 mm in Dove Grey and 1.5mm
in six colours.
Adhesive WPM 09A
VË A contact brushing, spray grade and rolling solvent free
adhesive for fixing to the ECO Butynol to substrates. Supplied
in 20L plastic containers.
Adhesive WPM 09C Catalyst
General
7.1
Butynol® and ECO Butynol® Roofing Membranes are
for use on roofs, decks and balconies where an impervious
waterproof membrane is required to prevent damage to building
elements and adjoining areas.
7.2
The 1.0mm thickness product is designed for use
on roofs and gutters, and will accommodate light traffic; the
1.5mm is for walk out decks and high maintenance areas; and
the 2.25mm is a heavy duty product that is custom made on
request. The 1.2mm is available in ECO Butynol® only is for use
on roofs.
7.3
The effective control of internal moisture must be
considered at the design stage due to the impermeability of the
membrane. Refer to BRANZ publication “Good Practice Guide to
Membrane Roofing”.
7.4
Timber framing systems must comply with NZS 3604,
or where specific engineering design is used, the framing shall be
of at least equivalent stiffness to the framing provisions of NZS
3604, or comply with the serviceability criteria of NZS 4203.
In all cases framing must be provided so that the maximum
span of the substrate as specified by the substrate manufacturer
is met and that all sheet edges are fully supported.
VË Used with the WPM 09A to assist adhesion in adverse
conditions. Supplied in 1, 4 and 20 litre containers.
Adhesive WA98
Building to NZBC Acceptable Solution E2/AS1
7.5
NZBC Acceptable Solution E2/AS1 limits the size
of decks to 40 m2 as covered by the scope of this Appraisal.
Butynol® and ECO Butynol® Roofing Membranes are suitable for
use on decks larger than 40 m2. These decks are the subject of
specific design and are outside the scope of this Appraisal.
VË A specially formulated solvent-based adhesive for all Butynol®
applications. Supplied in 1, 4 and 20 litre containers.
Seam Primer
VË A water resistant primer adhesive, used with seam tape for
general lap bonding.
Seam Tape
VË Uncured cold gum tape used for general lap bonding and
laps likely to be subject to periodic ponding. Supplied in
50mm x 30.5 metre rolls.
Structures
8.1
Butynol® and ECO Butynol® Roofing Membranes fully
bonded are suitable for use in areas subject to maximum wind
pressure of 3 kPa Ultimate Limit State subject to the limitations
of the substrates.
2
Substrates
13.6
Drainage flanges must be used for any outlet and must
be fitted with a grate or cage to reduce potential sources of
blockages. An overflow must be provided where the deck or
balcony does not drain to an external gutter or spouting.
13.7
Penetrations and upstands of the membrane must
be raised above the level of any possible flooding caused by
blockage of deck and balcony drainage.
13.8
The design of details not covered by the Technical
Literature is subject to specific weathertightness design and is
outside the scope of this Appraisal.
13.9
Butynol® and ECO Butynol® Roofing Membranes are
impermeable; therefore a means of dissipating construction
moisture must be provided in the building design and
construction to meet code compliance with Clause E2.3.6.
Plywood
9.1
Plywood must be treated to H3 (CCA treated). LOSP
treated plywood must not be used. Plywood must comply with
NZBC Acceptable Solution E2/AS1 Paragraph 8.5.3 and 8.5.5.
Where specific design is used (i.e. outside the scope of E2/AS1),
the plywood thickness and fixing size may increase and centres
may decrease to meet specific wind loadings.
Concrete
9.2
Concrete substrates must be to a specific engineering
design meeting the requirements of the NZBC, such as concrete
construction to NZS 3101.
Durability
Water Supplies
Serviceable Life
10.1
Butynol® and ECO Butynol® Roofing Membranes when
subjected to normal conditions of environment and with proper
maintenance can expect to have a serviceable life of at least 20
years.
14.1
Water is not contaminated by Butynol® and ECO
®
Butynol Roofing Membranes. The first 25 mm of rainfall from a
newly installed Butynol® and ECO Butynol® Roofing Membranes
roof must be discarded before drinking water collection starts.
This is to remove residues which may have developed in the
processes involved in the production of a Butynol® and ECO
Butynol® Roofing Membranes.
14.2
Note that all water collected off roof surfaces made
from any material is considered to be non-potable due to possible
contamination from other sources. Water collection in this way
can only be considered potable if it has been passed through a
suitable sterilization system. Sterilization systems have not been
assessed and are outside the scope of this Appraisal.
Maintenance
11.1
No maintenance of the membrane is normally required
provided significant substrate movement does not occur.
11.2
In the event of damage to the membrane, the
membrane must be repaired by removing the damaged portion
and applying a patch as for new work.
11.3
Drainage outlets must be maintained to operate
effectively.
Installation Information
Outbreak of Fire
12.1
The membranes must be protected from heat sources
such as flues and chimneys in accordance with the requirements
of NZBC Acceptable Solution C/AS1 Part 9 for the protection of
combustible materials.
Installation Skill Level Requirement
15.1
Installation of the membranes must be completed by
approved applicators, approved by Ardex New Zealand Limited.
15.2
Installation of substrates must be completed by
tradespersons with an understanding of roof, deck and balcony
construction, in accordance with instructions given within
the Ardex New Zealand Limited Technical Literature and this
Appraisal.
External Moisture
13.1
Roofs, decks and balconies must be designed and
constructed to shed precipitated moisture. They must also take
account of snowfalls in snow prone areas. A means of meeting
code compliance with NZBC Clause E2.3.1 is given by the
Technical Literature which matches details in NZBC Acceptable
Solution E2/AS1.
13.2
When installed in accordance with this Appraisal
and the Technical Literature, Butynol® and ECO Butynol®
Roofing Membranes will prevent the penetration of water and
will therefore meet code compliance with Clause E2.3.2. The
membranes are impervious to water and will give a weathertight
roof, roof deck or balcony.
13.3
The minimum fall to roofs is 1 in 40, decks and
balconies 1 in 60 and gutters 1 in 100 with no seams in the
gutter closer than 1 m to an outlet in accordance with NZBC
Acceptable Solution E2/AS1 Paragraph 8.5.1. All falls must
slope to an outlet. Inadequate falls will allow moisture to collect
and may increase the risk of deterioration of the membranes.
(Note: Where possible a minimum fall of 1 in 60 in gutters is
preferred.)
13.4
Roof, deck and balcony falls must be built into the
substrate and not created with mortar screeds applied over the
membranes.
13.5
Allowance for deflection and settlement of the substrate
must be made in the design of the deck or balcony to ensure
falls are maintained and no ponding of water can occur.
Preparation of Substrates
16.1
Substrates must be dry, clean and stable before
installation commences. Surfaces must be smooth and free
from nibs, sharp edges, dust, dirt or other materials such as oil,
grease or concrete formwork release agents. All surface defects
must be filled to achieve an even and uniform surface.
16.2
Concrete substrates can be checked for dryness by
using a hygrometer, as set out in BRANZ Bulletin No. 424. The
relative humidity of the concrete must be 75% or less before
membrane application.
16.3
The moisture content of a timber substructure must
be a maximum of 20% and plywood sheet must be dry at time
of membrane application. This will generally require plywood
sheets to be covered until just before the membrane is laid, to
prevent rain wetting.
16.4
In cases of extreme absorbency a priming coat of 50/50
solution of WA98 and adhesive solvent may be required, consult
with the Ardex New Zealand Limited if in doubt.
3
Membrane Installation
Other Investigations
17.1
The membranes must be installed in accordance with
the Technical Literature.
17.2
Plywood joints must be taped with 25mm wide PVC
pressure sensitive tape.
17.3
The membranes must be unrolled without tension onto
the prepared substrate and allowed to ‘relax’ for at least 20
minutes prior to installation.
17.4
Adhesive must be applied to both the membrane and
the substrate, one half at a time. When the adhesive is tack
dry, the sheet is rolled onto the substrate. The process is then
repeated for the other half of the sheet. Joints in substrates
with a pitch of 5º or less, all coloured membranes and ECO
Butynol® irrespective of pitch, all guttering and areas subjected
to periodic ponding require lap bonding using Ardex seam tape.
Joints in substrates with a pitch above 5º can be sealed using
WA98 adhesive; this applies to the black Butynol® only.
21.1
An assessment was made of the durability of the
Butynol® Roofing Membrane by BRANZ technical experts using
NZBC B2/VM1 History of Use.
21.2
Site visits have been carried out by BRANZ to assess
the practicability of installation, and to examine completed
installations.
21.3
The Technical Literature has been examined by BRANZ
and found to be satisfactory.
Quality
22.1
The manufacture of the Butynol® and ECO Butynol®
Roofing Membranes has been examined by BRANZ, and details
regarding the quality and composition of the materials used
were obtained by BRANZ and found to be satisfactory. The
membranes manufacturer is the subject of AS/NZS ISO 9001:
2008 Certificate by Telarc Limited.
22.2
The quality of manufacture of the products is the
responsibility of Ardex New Zealand Limited.
22.3
The quality of supply of the products to the market is
the responsibility of Ardex New Zealand Limited.
22.4
Quality on site is the responsibility of the Ardex New
Zealand Limited approved applicators.
22.5
Designers are responsible for the substrate design, and
building contractors are responsible for the quality of construction
of substrate systems in accordance with the instructions of the
substrate manufacturer, Ardex New Zealand Limited and this
Appraisal.
Inspections
18.1
Critical areas of inspection for waterproofing systems
are:
VË Construction of substrates, including crack control and
installation of bond breakers and movement control joints.
VË Moisture content of the substrate prior to the application of
the membrane.
VË Acceptance of the substrate by the membrane installer prior
to application of the membrane.
VË Installation of the membrane to the manufacturer’s
instructions.
Sources of Information
Health and Safety
VË AS/NZS 2269: 2008 Plywood – Structural.
VË ASTM E 96-02 Water vapour transmission of materials
in sheet form, American Society of Testing Materials,
Philadelphia, 1992.
VË NZS 3101: 1995 The design of concrete structures.
VË NZS 3604: 1999 Timber framed buildings.
VË NZS 3604: 2011 Timber-framed buildings.
VË Compliance Document for New Zealand Building Code
External Moisture Clause E2, Department of Building and
Housing, Third Edition July 2005.
VË New Zealand Building Code Handbook and Approved
Documents, Building Industry Authority, 1992.
VË The Building Regulations 1992, up to, and including October
2004 Amendment.
VË Membrane Roofing Good Practice Guide, BRANZ, November
1999.
19.1
Safe use and handling procedures for the membrane
system is provided in the Technical Literature.
The products must be used in conjunction with the relevant
Materials Safety Data Sheet for each membrane.
Basis of Appraisal
The following is a summary of the technical investigations
carried out:
Tests
20.1
Tests have been carried out on the membranes by
Materials and Quality Consultancy Ltd. This testing covered
specific gravity, shore hardness, tensile strength, modus of
elongation, elongation at break, tensile and elongation retention
after heat aging, tear strength, ozone resistance and water
absorption as detailed in NZBC Acceptable Solution E2/AS1
Paragraph 8.5.4(b). Results and test methods have been
reviewed by BRANZ and found to be satisfactory.
20.2
Water vapour permeability tests have been undertaken
by BRANZ in accordance with ASTM E96.
20.3
The adhesives, primers and seam tapes used with
Butynol® and ECO Butynol® Roofing Membranes meet the
performance requirements of NZBC Acceptable Solution E2/AS1
Paragraph 8.5.4(c).
Results and test methods have been reviewed by BRANZ and
found to be satisfactory.
4
In the opinion of BRANZ, Butynol®
and ECO Butynol® Roofing
Membranes are fit for purpose
and will comply with the Building
Code to the extent specified in this
Appraisal provided they are used,
designed, installed and maintained
as set out in this Appraisal.
The Appraisal is issued only to
Ardex New Zealand Limited, and is
valid until further notice, subject to
the Conditions of Appraisal.
Conditions of Appraisal
The new Christchurch Airport Terminal has been covered with 1.5mm Dove Grey Butynol.
1. This Appraisal:
a) relates only to the product as described
herein;
b) must be read, considered and used in full
together with the technical literature;
c) does not address any Legislation,
Regulations, Codes or Standards, not
specifically named herein;
d) is copyright of BRANZ.
2. Ardex New Zealand Limited:
a) continues to have the product reviewed by
BRANZ;
b) shall notify BRANZ of any changes in
product specification or quality assurance
measures prior to the product being
marketed;
c) abides by the BRANZ Appraisals Services
Terms and Conditions.
d) Warrants that the product and the
manufacturing process for the product are
maintained at or above the standards, levels
and quality assessed and found satisfactory
by BRANZ pursuant to BRANZ’s Appraisal
of the product.
3. BRANZ makes no representation or
warranty as to:
a) the nature of individual examples of, batches
of, or individual installations of the product,
including methods and workmanship;
b) the presence or absence of any patent or
similar rights subsisting in the product or
any other product;
c) any guarantee or warranty offered by Ardex
New Zealand Limited.
4. Any reference in this Appraisal to any other
publication shall be read as a reference to
the version of the publication specified in
this Appraisal.
5. BRANZ
provides
no
certification,
guarantee, indemnity or warranty, to Ardex
New Zealand Limited or any third party.
For BRANZ
P Burghout
Chief Executive
Amendment No. 1, dated 15 July 2011.
This Appraisal has been amended to align the minimum fall requirements as specified in
Acceptable Solution E2/AS1.
Date of issue: 23 May 2011
ARDEX Butynol
®
BRANZ Appraised, E2/AS1 Acceptable Solution
independent testing laboratory, have shown average
values equivalent to 90% of unwelded material. It is
considered impossible for the test methods used to be
duplicated in normal service ie. 400% elongation.
BUTYNOL® PROTECTION
Butynol® protects against water, moisture vapour,
gases, sun, ozone, frost, acids, chemicals and bacteria.
Appraisal No.436 [2011]
BUTYNOL® SYSTEM SPECIFICATION
A synthetic rubber with properties which resist ageing
from heat, sunlight and ozone. It has excellent gas
impermeability and toughness and remains flexible at
low temperatures.
Butynol is manufactured by combining the petroleum
gases isobutylene and isoprene at the extremely low
temperature of –100°C. (Rubber Technology–Morton)
®
Butynol® is marketed by Ardex as a warranted roofing,
decking and tanking product and fixed by their trained
and experienced approved Applicators.
BUTYNOL® MATERIAL SPECIFICATIONS
Our requirements for long term warranty necessitate
that Butynol® meets these typical technical
requirements:
Specific Gravity to ASTM D297
1.20±0.05
Hardness IRHD to ASTM D1415
65±5
Tensile Strength to ASTM D412
8.3 MPa min
Modulus at 300% elongation to
ASTM D412
4.15 MPa min
Elongation at break to ASTM D412300% min
Heat Ageing (7 days at 115° C)
Tensile Retention to ASTM D412
70% min
Elongation Retention to ASTM D412 70% min
Tear Strength to ASTM D624
26kN/m
Ozone Resistance to ASTM D1149 No visible cracks
(7 days at 40°C in 50pphm ozone)
Water Absorption to ASTM D471
1.65% (by mass) 0.72% (by volume)
Water Permeability to ASTM E96-92
Vapour Flow Resistance (MNs/g) 12414
Vapour Flow Rate (g/m2d)
0.013
BUTYNOL® RESISTANCE
Butynol® resists tearing, flex cracking, bubbling and
abrasion. It is extremely strong, has a long life and is
versatile.
STAINING OF LIGHT COLOURED BUTYNOL®
To avoid staining care must be taken during design
stage to ensure that water running off unpainted treated
timber and some metals (eg copper) do not run over
light coloured Butynol®.
BUTYNOL® GAUGES
Standard 1.0mm and 1.2mm–For roofs, gutters and
decks with protection.
1.2mm–For roofs.
1.5mm–For roofs, gutters and walk out decks.
2.25mm Heavy Duty
Factory welded panels in all gauges can be custom
made.
BUTYNOL® IS PACKAGED
In rolls of nominal 1.4m width and 17.86m long. Each
roll is packed in polythene wrapper trademarked
Butynol® with thickness identified. Coverage 25m2
except 2.25mm gauge which is 12m2
Gauges available are:
1.0mm black. Weight: nominal 30kg
1.5mm black. Weight: nominal 45kg
2.25mm black. Weight: nominal 32kg
1.2mm dove grey. Weight: nominal 32kg
Note: Interesting comparable figures for water
permeability are –
Polythene 156, Asphalt 1830, P.V.C. 4900.
1.5mm all colours. Weight: nominal 47kg
K Values on 1mm Butynol sheeting
Specially formulated for all Butynol® applications.
Available in solvent and water based. Supplied in 20L
steel/plastic pails (approx. 20kg). 4 and 1 litre cans.
K Value (Thermal Conductivity)
Cal/cm/sec/deg C.
7.4 x 103
Conductivity Data on 1mm Butynol sheeting
Resistance/m Ω /m = 0.6816 on 9.3 volts.
2
2
ADHESIVES AND SOLVENTS
BUTYNOL® SEALANT
Available in tubes for caulking guns.
SEAM TAPE PERFORMANCE
Tests on the seam tape bonding method, by an
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
SEAM PRIMER
CLEANING WEATHERED BUTYNOL®
Seam Primer is specially formulated for use with Seam
Tape. Applied with scrubber pads. Available in 4 and 1
litre cans.
Use sugar soap to remove oxidation and restore surface.
SEAM TAPE
DAMP AND WEATHERPROOFING
Recommended for all Butynol® laps.
The Building Code of Australia Deemed-to-Satisfy
Provisions F1.9 and F1.10 are met by Butynol as an
acceptable damp-proof course.
Supplied by Ardex in 50mm x 30.5m rolls (6 to a
carton).
DETAIL TAPE (uncured)
A malleable exterior tape for flashing exterior corners
etc. 150mm x 30.5m rolls.
FLASHING TAPE
A malleable tape for moulding in gussets, pipe flashings
and awkward situations. Supplied in 100mm x 5m rolls.
Flashing tape must not be left exposed. A cover strip
of Butynol® or detail tape must be applied over flashing
tape to finish.
PLYWOOD TREATMENT
To be in accordance with Acceptable Solution E2/AS1
plywood substrate must be treated to H3.2 with
Waterborne CCA treatment and kiln dried after
treatment. All plywood joins should be taped with Ardex
Release tape.
Plywood must not be LOSP treated.
DURABILITY
Butynol® when fixed according to Ardex instruction will
meet the NZBC requirements of B2.3.1(b) 15 years.
Refer BRANZ Appraisal Certificate No 436 (2011).
EXTERNAL MOISTURE
New Zealand Building Code Acceptable Solution
E2/AS1 requirements recommend membrane clad
roofs have a minimum pitch of 2° (1:30).
BUILDING TO NZBC ACCEPTABLE SOLUTION
E2/AS1
NZBC Acceptable Solution E2/AS1 limits the size of
decks to 40m2 as covered by the scope of Appraisal
No. 436 (2011). Butynol® Roofing Membrane is suitable
for use on decks larger than 40m2. These decks are the
subject of specific design and are outside the scope of
E2/AS1.
10
Wind blown dirt is more noticable on low slope roofs,
particularly on black Butynol®.
Butynol® when used as described in ABSAC Technical
Opinion 188 August 1994 complies with the Building
Code of Australia Deemed-to-Satisfy Provision F1.7(b)
and Acceptable Construction Manual Part 3.8.1.0, or AS
3740 for "Water Proofing of Wet Areas in Buildings".
PAINTING OVER BUTYNOL®
Use Ardex WPM 908. Wash with Sugar Soap. Beware
of using non Ardex primers as this may effect your
Butynol® Warranty.
FIRE RATING
The Butynol® roofing system must be considered
combustible but may be used on buildings for all
purpose groups, subject to the requirements of NZBC
Acceptable Solution C/AS1 Part 7, Paragraph 7.11.1.
When used for roofs in Purpose Groups SC and SD a
non-combustible substrate or timber 18mm thick is
acceptable. Refer 7.11.1.
Building Code of Australia allows use in all building types
under Specification C1.10, Clause 7(e), except in bush
fire prone areas.
PRODUCT WARRANTY
When laid by an approved Applicator in accordance with
Ardex's specifications, a material warranty for up to 20
years (covering the Membrane, adhesive and tape) is
available.
WORKMANSHIP
A warranty for workmanship shall be provided directly
by the approved Applicator. The period and terms of
the workmanship warranty shall be determined by the
conditions of contract or the approved Applicator.
ADHESIVES AND SOLVENTS FOR USE WITH
BUTYNOL®
WA98 -
The Standard contact brushing, spray grade and rolling adhesive for fixing to the substrate and for laps not subject to periodic ponding.
(Pitch 5° and above)
WA98S -
WPM 09A -
WPM 09C -
Seam Primer -
Solvent for clean up of WA98 adhesive.
Solvent free spray/brush adhesive.
(for use with Eco Butynol®)
Solvent free catalyst used in conjunction with WPM 09A
(for use with Eco Butynol®)
A water resistant primer, used with seam tape for general lap bonding.
Note: Temperature and Humidity
The evaporation of any solvent adhesive system causes
a drop in temperature at the interface. At times of high
humidity this can result in a micro molecular water layer
at the interface which will result in a failure to bond,
falsely attributed to Adhesive failure. Fixing should not
proceed under these circumstances.
NOTES
1. In cases of extreme absorbency, a priming coat of
50/50 WA98 adhesive and solvent may assist water
shedding and absorption. However, a follow up of
full strength adhesive for full bonding should not be
proceeded with under four hours, thus allowing full
evaporation of solvents absorbed into the substrate.
Primers must be time dried not touch dried.
2. As new substrate materials continually appear on
the market, consult Ardex for approval of their use
with Butynol®.
3. Seam tape and seam primer must be used for all
Butynol® joints.
4. Do not use in temperatures less than 6°C.
11
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
SUBSTRATE SPECIFICATION (Plywood)
SUBSTRATE SPECIFICATION (Concrete)
To conform with Acceptable Solution E2/AS1 plywood
shall be:
New concrete
Must be cured for a minimum of 28 days and all curing
compounds removed prior to application.
A minimum of 17mm complying with AS/NZS 2269, at
least CD Structural Grade plywood with the sanded C
face upwards, and H3.2 with Waterborne CCA treatment
and kiln dried after treatment.
Substrates must be dry when Butynol® is applied.
The plywood and the timber substructure shall have
a maximum moisture content of 20% when Butynol is
adhered.
Plywood panels shall be laid with staggered joints
(brick bond), the edge of sheets shall be supported
with dwangs or framing, unless a structurally tested
tongue-in-groove edge provides equivalent support. The
maximum recommended span in E2/AS1 is 400mm.
However specific design may allow 17.5mm plywood
or greater to be laid on 400mm purlins with nogs or
dwangs at 600mm or even 1200mm centres. Plywood
shall be laid with the face grain at right angles to the
supports. A 20mm triangular fillet shall be used at
the base of any 90° upstand. External edges shall be
chamfered with a minimum radius of 5mm.
Plywood shall be fixed with 10 gauge x 50mm stainless
steel countersunk head screws with 3mm gaps between
all sheets, at 150mm centres on edges, and 200mm in
the body of the sheets.
All joints in the plywood and junctions of plywood with
other materials shall have 25mm Ardex Release tape
applied before application of Butynol®.
PLYWOOD QUALITY
Plywood to be installed in accordance with the plywood
manufacturer's recommendation to provide a suitable
surface for membrane.
Problems with plywood quality may effect long term
membrane performance.
Please check with your plywood supplier.
We have duplicated the position of one supplier below.
• Face checks in plywood do not affect the structural
integrity of the panel as they are confined to the
surface veneer and are strictly aesthetic in nature.
• As face checking occurs naturally Carter Holt
Harvey Woodproducts does not consider them to be
a manufacturing or product fault.
Source: Specifications and Installation Guide Carter Holt
Harvey.
Laying on plywood with face checking as above should
be avoided and surface corrected if possible.
NOTE: The use of LOSP (Light Organic Solvent
Preservative) treated plywood must NOT be
used under Butynol® in any circumstances or
conditions.
12
A reduction in cure time can be achieved by utilising
the Ardex HydrEpoxy System (consult Ardex Technical
Department for details).
Old concrete
Must be clean from any contaminents prior to
application.
For further substrate types please consult Ardex
Technical Department.
ROOF VENTILATION
The most important precaution to observe with low
slope roofs is that no construction moisture is enclosed.
Low slope or flat roof structures are generally slow
drying because of their impermeable cladding. All
timbers should be below 20% moisture before being
enclosed.
No amount of ventilation will cope with moisture
problems created by drying timbers.
If there is a reason to believe that there is moisture
trapped in the roof structure Ardex can provide our
standard one way substrate ventilators or our lo rise one
way ventilators to provide a better visual appearance.
Soffit ventilation is the most effective way to provide
effective roof cavity ventilation. Careful placement of
the soffit ventilation to avoid gutters etc, will provide
a natural airflow as well as cooling to a low slope
membrane clad roof.
Closed-in construction spaces under Butynol® roofs and
decks shall have adequate ventilation to prevent the
accumulation of moisture under Butynol®. There should
be a minimum gap of 20mm between the underside of
the substrate and any insulation.
SUBSTRATE VENTILATION
Substrate ventilation should be used to release moisture
trapped under the Butynol® on concrete surfaces.
Substrate ventilators are used in conjunction with vent
tapes. Tapes should be laid in a grid pattern spaced
at 600mm venting to the roof perimeter. On plywood
substrates ventilators are used at the junction of the
ply. Ventilators are not required in most applications
for cavity ventilation - seek advice from an Ardex
Representative. One way substrate ventilators prevent
moisture vapour build up and if required can be installed
every 90 square metres. Not designed to ventilate roof
cavities. (Refer Diagram page 20).
TYPICAL ARCHITECTURAL BUTYNOL® RUBBER
ROOFING SPECIFICATION
1.Preliminary
Refer to the Preliminary and General Clauses of this
specification and to the General Conditions of Contract
which are equally binding on all trades. This section of
the specification shall be read in conjunction with all
other sections.
2. Scope
This section of the contract consists in general of the
provision and laying of all the Butynol® rubber, for the
roofs, decks, gutters and flashings on the buildings.
Refer to Clause 12 hereafter for Extent of Work.
3.Workmanship
The whole of the work shall be carried out by skilled
tradesmen using adequate and proper equipment
and methods in accordance with best trade practice,
and following the specifications methods and
recommendations as laid down by the manufacturers.
4.Sub-contractors
The work included in this section of the contract shall
be carried out by a firm of roofing experts conversant
with and specialising in the supply and fixing of this
material and shall be a firm approved by Ardex.
5. Warranty
When laid by an approved Applicator in accordance with
Ardex's specifications, a written material warranty of
up to 20 years is available. It is the responsibility of the
approved Applicator to confirm proper installation and
to request Ardex to issue a material warranty on behalf
of the customer following completion of installation.
6.3 Seam Tapes
Shall be 50mm wide seam tape provided by Ardex.
6.4 Substrate Joint Tape
All Plywood joints shall be taped with a 25mm wide
pressure sensitive Ardex Release tape.
7.Roof Deckings
Shall be 1.5mm Butynol® or 1mm with a protective
covering for all deck surfaces.
All decks to which Butynol® is to be fixed shall be clean,
smooth, dry and free from dirt, grit or sharp objects.
Deck substrates may be primed with 50/50 WA98
adhesive/solvent.
The Butynol® roofer shall co-operate with the other
trades laying the decking to ensure that the final surface
is in first class condition for the laying of the Butynol®
rubber roofing.
The Butynol® roofer shall check the deck before laying
any Butynol® to ensure that the surface is completely
sound, screw fixed to specifications: screw heads flush,
sheets spaced to provide for thermal movement or
shock.
NZBC Acceptable Solution E2/AS1 limits the size of
decks to 40m2 as covered by the scope of Appraisal
No. 436 (2011). Butynol® Roofing Membrane is suitable
for use on decks larger than 40m2. These decks are the
subject of specific design.
Full Ardex specifications also available on Masterspec.
6. Materials
6.1 Butynol® Rubber
(a) Shall be 1.0mm thick standard Black Butynol®
rubber to all roof surfaces, gutters and fascias and
walk out decks where membrane is to be overlaid
with tiles or timber.
(b) Shall be 1.5mm thick Butynol® to all walk out
decks.
6.2 Adhesives
Shall be as recommended by Ardex specially
formulated for Butynol® rubber and suitable for the
particular application and the relevant temperature
and conditions applicable.
Generally Ardex WA98 adhesive (or WPM 09A) is
used for substrate bonding.
Ardex seam primer shall be used in conjunction with
Ardex seam tapes for all laps.
When conditions are experienced that are
outside the temperature and/or moisture ranges
recommended by the manufacturers for the above
standard adhesives work will cease.
13
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
8.Laying of Butynol® Roofing
It is the responsibility of the Applicator to ensure that
the substrate surface to be covered by the Butynol® is
in fit and proper condition, suitable for the laying of the
material.
9. Tiling Over Butynol®
To direct fix tiles to Butynol, ABA Optima two part
adhesive should be used. Ensure the Butynol® surface is
clean and dry before applying the adhesive. All laps must
have seam tape.
Tape all joins in substrate sheets with 25mm wide
pressure sensitive tape approved by Ardex.
Tiles may also be adhered to a removeable layer of
Ardex DS60 to comply with (E2 7.3.1.1) with the ability
to lift the top surface off when necessary.
All Butynol® sheeting shall be laid out on the roof to
“relax” the sheeting before fixing. A period of at least
20 minutes is usually required. Do not finally position
sheeting with a tension exceeding 2%.
Apply adhesive to the substrate and the underside of
the Butynol® rubber sheeting by brush, spray or an
approved type roller at a spreading rate of generally not
less than 2.5 square metres per litre. Leave to tack dry
before bonding the two surfaces together.
Lay sheeting by drawing back halfway either
longitudinally or transversely. Thoroughly roll or work
over the surface of the sheet to exclude all air and to
obtain a full bond.
All Butynol® shall be “lap bonded” as detailed below.
Bonding Laps with Ardex Seam Tape and Seam
Primer
1. The top lap is positioned and the bottom sheet
marked to indicate the edge of the top sheet.
2. The top sheet is folded back.
3. The Ardex Seam Primer is then applied to the
Butynol® in the area marked on the bottom sheet
and 50mm in from the edge on the top sheet.
The Ardex Seam Primer is applied to the mating
surfaces using a synthetic scrubbing pad. Scrubbing
pads should be replaced as they become dirty. Allow
the primer to become 'dry to the touch'.
4. Position and unroll the 50mm Ardex Seam Tape
along the seam. The edge of the release paper
should be aligned to the mark on the bottom
membrane sheet.
5. Roll the length of the seam with the release paper
still in place.
6. Remove the release paper from the Ardex Seam
Tape by pulling at a 45° angle away from the seam.
Keep the release paper low to the roof surface as it
is removed.
7. Fold into place the primed edge of the top sheet.
8. Roll the completed seam.
14
(Refer Optima page 41)
10. Protection of Laid Butynol® Sheeting
The Butynol® roofing contractor shall ensure that his
fixers only work on the Butynol® roofing with soft sole
shoes.
The Butynol® roofer shall co-ordinate with the main
contractor who shall ensure that any other trades who
work over the completed roof wear soft sole shoes.
Upon completion of each area the roofer shall get
the main contractor to inspect the area and the main
contractor will sign off that the area was free from any
defects or damage. It is then the responsibility of the
main contractor to ensure the Butynol® roofing is in no
way damaged by other trades.
11. Completion
On completion carefully and thoroughly clean off and
remove all scraps and other rubbish from finished
surfaces and leave in tidy order.
12. Extent of Work
Observe the foregoing specification and supply and lay
Butynol® rubber sheeting to all roofs, decks, gutters
and flashings as shown and detailed in the Ardex
specification.
Failure to comply with the above specifications will result
in all warranties being null and void.
LAYING SPECIFICATION
BUTYNOL® LAYING METHOD
The Sub contractor for the work called for in this trade
will be a Company or Person approved by Ardex.
STEP 1
Accurately place sheet. Mark spacing with chalk line.
The approved Applicator (hereafter called the
Applicator) shall examine all drawings and provide for
the flashing, caulking and sealing of all vents, stacks
and pipes penetrating the roofing membrane. Also all
flashings at walls, parapets, verges, gutters etc., unless
otherwise instructed in the specifications.
Chalk
Line
The surface to which Butynol® is to be fixed shall be
clean, smooth, dry and free from sawdust, grit or sharp
objects. Membrane laying shall not start until defects
have been corrected.
To avoid staining care should be taken to avoid water
runoff from copper downpipes or guttering on to light
coloured Butynol®.
STEP 2
Fold back half sheet. Apply adhesive to both faces.
Adhesive
When CCA plywood is used in conjunction with a
light coloured membrane it is advisable to prime any
plywood that will not be covered the same day.
It is the responsibility of the Applicator to ensure that
the surface to be covered by the Butynol® is in fit and
proper condition, suitable in all respects for the laying
of the material.
On completion the Applicator will provide the owner
with a Workmanship Warranty and obtain from Ardex a
Materials Warranty.
Failure to comply with the above specifications will
result in all warranties being null and void.
STEP 3
After flash off, fold membrane into place. Roll thoroughly.
LAYING THE BUTYNOL®
Before applying the Butynol®, it shall be unrolled
for twenty minutes to relieve stresses induced by
manufacture and storage. The Butynol® sheet shall be
set out in the exact position in which it will be finally
required and while it is held in place, it shall be folded
back lengthwise to expose half the underside. To the
now exposed underside and the area of roof also left
exposed, apply an even coat of WA98 Adhesive or WPM
09A (solvent free). When the adhesive has become
touch dry, work the sheet back into its original position
avoiding wrinkles and the inclusion of air bubbles.
Roller
STEP 4
Treat 2nd half of Butynol® similarly.
Repeat the process with the other half of the sheet and
when completed, roll the whole sheet with hand press
rollers or the like.
When applying the next sheet, it shall be lapped over
the first sheet by 50mm. All turn ups and downs shall
be neatly formed and cut to a straight line if required.
Butynol shall not be laid under tension.
When the whole area has been covered or as work
progresses, the applicator has to seal the laps.
15
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
EXTERNAL CORNERS
To comply with Acceptable Solution E2/AS1 Figure 57.
FLASHING - EXISTING PIPE
STEP 1
Bond 100mm flashing to corner as shown.
STEP 1
Under flash pipe with 100mm
Butynol® flashing tape.
STEP 2
Bond Butynol® to 100mm past pipe.
N.B. When flashing black Butynol® use Butynol® or
detail tape.
Fillet
CCA treatment not LOSP
100
Cut
STEP 2
Bond Butynol® to deck and up wall 150mm minimum.
Cut sheet from corner at 45° as shown.
45°
STEP 3
Bond continuation of Butynol® to overlap base sheet
and beyond pipe 100mm.
Cut a smooth round hole 20mm smaller than diameter
of penetration.
Fillet
100
STEP 3
Cover corner point with layer of detail tape.
NOTE: Fillets must be
used on all internal corners.
16
STEP 4
Apply collar of detail tape or Butynol® cover strip.
DO NOT STRETCH STRIP.
N.B. Flashing tape MUST NOT be left exposed.
Cover strip must be Butynol®. When detail tape is
used a cover strip of Butynol® is not required.
FLASHING - NEW PIPE
STEP 1
Cut smaller diameter hole than pipe.
Butynol Aperture
STEP 2
Pipe is raised through smaller diameter hole in Butynol®,
forcing edge upwards to create upstand.
INTERNAL CORNERS FOR RAINHEADS
and areas where a pig's ear cannot be used.
STEP 1
Apply Flashing Tape over Rainhead and Plywood.
Plywood
Flashing Tape
Rainhead
STEP 2
Run Seam Tape along all four vertical sides of Rainhead.
Seam Tape
STEP 3
Pull pipe down to eliminate void.
STEP 3
Cut Butynol® sheet to fit into corners.
Butynol®
STEP 4
After pulling pipe down approximately 1cm to sharpen
corner, tape upstanding Butynol® to pipe using seam
primer and detail tape.
Detail Tape
STEP 4
Cover corner point with layer of detail tape.
N.B. If flashing tape is used it MUST NOT be left exposed. A cover strip of Butynol® must be applied over
the flashing tape to finish.
Detail Tape
17
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
BONDING THE LAPS
FORMING LAPS FOR GUTTERS
Seam tape and seam primer must be used for all
Butynol® joints.
Laps are most important in gutter work and should be
formed using Ardex seam tape and seam primer.
All internal boxed gutters can be easily formed to
any shape or size using Butynol® over any specified
substrate.
Butynol
®
50mm
Ardex Seam Tape &
Seam Primer
WA98 Adhesive
Ardex CA20P into square chase
Butynol® Roofing
Seam Tape
Butynol® Guttering
Substrate
1. The top lap is positioned and the bottom sheet
marked to indicate the edge of the top sheet.
2. The top sheet is folded back.
3. The Ardex Seam Primer is then applied to the
Butynol® in the area marked on the bottom sheet and
50mm in from the edge on the top sheet. The Ardex
Seam Primer is applied to the mating surfaces using
a synthetic scrubbing pad. Scrubbing pads should be
replaced as they become dirty. Allow the primer to
become ‘touch dry’.
FLUE FLASHING
Inner Flue
Outer Flue
4. Position and unroll the 50mm Ardex Seam Tape
along the seam. The edge of the seam tape should
be aligned to the mark on the bottom membrane
sheet. The see-through backing film makes this very
simple.
Step 2
5. Roll the length of the seam with backing film still in
place.
6. Remove the backing film from the Ardex Seam Tape
by pulling at a 45° angle away from the seam. Keep
the backing film low to the roof surface as it is
removed.
Step 4
Step 3
Step 1
7. Fold into place the primed edge of the top sheet.
Measure Butynol® to suit size of pipe. Cut a smooth
round hole at least 20mm smaller than diameter at flue
penetration.
8. Roll the completed seam.
Step 2
Fix Butynol® Flashing onto roofing with WA 98 adhesive
ensuring membrane is relaxed into roofing profile.
Step 3
Apply collar of Detail Tape sealed with Seam Primer onto
20mm Butynol® upstand.
Step 4
Apply flashing strip of Detail Tape sealed with Seam
Primer onto Butynol® top edge and roofing ensuring
feather edge is on the upside.
18
FLASHING INTO CONCRETE WALLS
RECOMMENDED BATTEN PROFILE DETAIL
50x50mm Dressed Batten
Square chase
Ardex CA20P
150mm minimum
Butynol® lapped on side
face with seam tape for
coloured membrane
Timber Fillets 50x50mm
screw fixed
Concrete
Radius Angle
Battens arranged to suit plywood
sheet sizes or visual effects
Fillet
Butynol®
Lap of membrane
on side face
Suggested 1200mm centres
Butynol® is glued into square chase and finished with
Butynol® Sealant.
Example of a 1400mm sheet of Ardex Butynol® dressed over battens
at 1200mm centres
Note: Treatment for battens must be H3.2 (CCA) only. Not LOSP treated.
INTERNAL CORNERS
BOXED GUTTER AND PARAPET DOWNTURN
Butynol® to finish
under wall cladding
Metal Capping
Fillet cut on angle to
allow pigs ear to lay back
against vertical wall
Roof Cladding
Block or
Concrete
Parapet
Butynol®
150mm
Fillets
CCA treatment not LOSP
Plywood
Fillet
Without cutting Butynol® simply fold a 'pig's ear' corner
as shown. The angle fold should be behind the main
sheet.
NOTE: Fillets must be used on all internal corners.
INTERNAL GUTTER
Metal Roofing
TAPING SUBSTRATE SHEETS
Ardex Release Tape
Butynol®
Butynol®
Guttering
Plywood Substrate
Plywood
3mm gap
25x25mm Fillet
CCA treatment not LOSP
All joints between substrate sheets of Ply should be
taped to prevent stressing of the Butynol® in case of
marked timber movement.
19
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
ONE WAY SUBSTRATE VENTILATOR
TWO METHODS FOR FINISHING OVER A GUTTER
PVC or Aluminium
Butynol®
Planed plywood edge
Approved One-way
Roof Vent
Detail tape
Butynol® Roofing
Butynol®
patch
forming
flange
Seam tape
Seam tape
Adhesive on substrate
and vent surface
Plywood
Galvanised Flashing
screwed onto plywood
Framing
(Cut-away view)
Plywood
Vent installed over
intersection of vent tapes
on concrete substrate
Gutter
Butynol®
Planed plywood edge
Butynol
Roofing
Galvanised Flashing
Vent
tapes
Gutter
Saw cuts assist drying
of wet substrate and vented
membrane turnup
Vent installed over
intersection of 3mm gap
between Ply substrate
sheets.
Fascia
Conctrete
Substrate
Butynol®
Roofing
ROOFING PENETRATION IN MEMBRANE
Over flashing from
rooflight, vent etc
Fillet
Ceiling insulation
LO RISE ROOF VENT
Butynol®
150 min
Ply Substrate
Substrate
NOTE: 1 For maximum penetration size of 1200x1200mm
2 External corners to be formed as shown
20
SCUPPER OUTLET
BUTYNOL®/CORRUGATE PITCH CHANGE JUNCTION
Flashing
Selected corrugated roofing
over 75x50 battens
Membrane
Scupper
External
Rainhead
Seam Tape
Roofing underlay
carried over Butynol®
to edge of iron
Membrane
Butynol® on ply packed
over purlins for fall
Roof structure
Substrate
INTERNAL ROOF DRAIN (NZBC E2/AS1 Approved)
Plywood
Screwed grate in
clamping ring
Butynol®
BUTYNOL® LAPPING OVER METAL FLASHING
25mm polyethylene
release tape over
metal edge and
screw/clout heads.
Fixing @100mm
centres
70 min-100mm max
Butynol
(Section)
Cast Iron
drain unit
Butynol®
2-3mm
rebate
Countersunk
screw heads or
angular grooved
gib-clouts
Outlet grate cover
Inner clamping ring
Continuous bead
of adhesive under
flashing to plywood
Metal roof
Where Seam tape is to be used no silicone sealant should be used when
installing flashing. If silicone is present remove completely with solvent.
Screws
BUTYNOL® FLUSH FINISH TO METAL EDGE
Base cone flange
Line of Seam tape to be installed
(Cut-away view)
50mm Seam tape
applied with 2 coats
of Seam primer
Metal roof
flashing
Plywood
Timber
Butynol® on ply carried
250mm min up main
roof pitch
5mm minimum
rounded corner
Apply adhesive to substrate
base in required stages
Butynol®
50mm Seam tape
applied with 2 coats
of Seam primer
Fillet
Plywood
Galvanised steel channel
21
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
RAINWATER HEAD AND SCUPPER OPENING
IN MEMBRANE USING
ARDEX BT 300 OR BT 301 SCUPPER
GUTTERS AND OUTLETS IN MEMBRANE
Edge gutter
Gutter width 300 min.
Deck outlet
Floor level
200 min.
opening
Butynol
100 min. to
floor from
high point
of deck
Cladding overlap 50 min.
Lip of discharge at
lowest point of roof
Cladding
and building
wrap
High point of deck
Fall
Gutter depth 50 min.
Substrate
Opening plus
100 min.
75 min.
opening
Chamfer
Gutter fall
1:100 min.
Fillet
Support all edges
of substrate
Ardex BT 201 or BT 202
external rainhead
Proprietary roof outlet with
membrane clamped by
screw fixed grate or dome
Downpipe
Overflow
Central gutter
Refer to cladding
for cavity finish
Gutter width 300 min.
Butynol
Fall
Ardex BT 300 or
BT 301 scupper
Gutter depth 50 min.
Membrane
Gutter fall
1:100 min.
Substrate
Proprietary roof outlet with
membrane clamped by
screw fixed grate or dome
Wall cladding
Air Conditioning/Plant Fixing Detail
Aluminium Pressure Bar Seal
Sealant
Pressure Seal Flashing
Air Conditioner/Plant
6mm Stainless Steel screws
into nylon masonry plugs
Fillet
CCA treated Bearers
wrapped in Butynol®
Substrate
22
Butynol®
Membrane
FALLS IN BUTYNOL® ROOFS AND DECKS
EAVE AND VERGES IN BUTYNOL®
Roof
Eave
Line of internal floor
level
50
Verge
Butynol® fixed under timber
fillet and then folded round and
overflashed by roof membrane
Ex 75mm deep fillet
to form drip edge
Substrate rebated for Butynol®
Fall: 1:40 min
Line of base of cladding
Spouting
Gutter
Wall cladding and building wrap
Deck
Verges
Butynol® membrane
100x50mm capping
Line of internal
floor level
Z
Fillet
Substrate
Ex 25mm barge
Fall: 1:60 min
Gutter or low point of deck to
discharge to rainwater head or
roofing outlet
Overflow where
applicable
Butynol® fixed under timber
fillet and then folded round
and flashed over roof
membrane
Membrane dressed
down over barge
flashing and
returned at ends
Wall cladding and building wrap
Roofing membrane
Upstand framing
Fillet
Z
Line of base of cladding
Substrate
Metal flashing
Wall cladding and building wrap
NOTE: Z = variable according to wind zone
23
ARDEX Butynol®
BRANZ Appraised, E2/AS1 Acceptable Solution
JUNCTIONS WITH WALLS FOR BUTYNOL®
Direct fix threshold at wall
Direct fix threshold at opening
Cladding
Carry Butynol® up
behind building wrap
and past the bottom
plate of the wall framing
Wall offset to deck
structure
150 min.
100 min.
6
35 min.
Floor structure
Sill flashing with 5º
slope and stopends
Floor structure
Carry Butynol® up and
under window sill liner
at floor level windows
and doors
Enclosed deck structure
Cavity threshold at wall
Enclosed deck structure
Alternative threshold at opening
Cladding
Carry Butynol® up
behind building wrap
and past the bottom
plate of the wall framing
Dress Butynol® 100mm
min. up framing at ends.
Width to suit joinery and
cladding
Air seal
Line of
cavity
beyond
Finished
floor level
Cavity base closure
Drip edge
35 min.
150 min.
Floor structure
100 min.
Finished
floor
level
Enclosed deck structure
NOTE: 1 Internal corners to be formed as shown on page 26
24
Air seal
Finished
floor
level
Finished
floor
level
2
Dress Butynol® 100mm
min. up framing at
ends. Width to suit
joinery and cladding
Dimensions are shown to Butynol®. However, where there is an additional material applied over the Butynol® all dimensions shall apply to the highest level of the
wearing surface
Floor structure
Flooring depth
Enclosed deck structure
LOOSE LAID APPLICATION OF BUTYNOL® ROOFING
TYPICAL BALLASTED/GARDEN ROOF DETAIL
Materials used shall be as previously specified. When
the surface is suitably prepared a large fully vulcanised
Butynol sheet or sheets can be unrolled and spread
over the prepared area and allowed to remain in this
position for approximately one hour to relieve stresses
induced by manufacture and storage. If necessary
for ease of handling, these sheets can be supplied in
varying sizes and vulcanised on site using an Ardex
vulcanising machine or using seam tape with seam
primer.
Soil
Filter Fabric
Ballast
Filter Fabric
The Butynol® sheet shall be set out in the exact position
in which it will be finally required and whilst it is held
firmly in place it shall be folded back at least one metre
from the roof's surrounding parapet or wall to allow
the application of adhesive to that area of the exposed
substrate.
Insulation
Membrane
Concrete
WA98 adhesive may be applied to the substrate and
the corresponding area of Butynol® sheeting which
may then, when the adhesive is touch dry, be worked
back into its required position avoiding wrinkles and the
inclusion of air bubbles.
Upon completion of the detail work, parapets, drains
and rainheads etc a layer of rounded gravel 30-40mm
should be applied up to 50mm deep, over a layer of
Geo Textile Fabric for protection of the Butynol® sheet.
SCUPPER ROOF OUTLET
Wall or Parapet
Dress Membrane into Scupper
S/S Grate
Care must be taken at outlets to ensure the ballast
cannot enter or cause a blockage that prevents
rainwater from leaving the roof area. Maintenance
paths should be created to air-conditioning or roof plant
with concrete tiles.
Effects on the membrane in areas of high wind can be
eliminated by stabilising the ballast with cement. Dry
cement should be broadcast over the 30-40mm gravel
with a broad mouth shovel and left to hydrate or lightly
sprayed with water to set off.
If possible a water test should be carried out prior to
the application of ballast.
Filter Fabric
Insulation
Membrane
Scupper
Concrete
SCUPPER ROOF OUTLET & GRAVEL RETAINER
Grate
Filter Fabric
Ballast
Note: Minimum pitch 2.0° to comply.
Ballast
Insulation
Screed
Membrane
Refer NZBC Clause [email protected]/AS1 External Moisture 8.5.1 (a).
Butynol® can be laid with zero pitch if compliance can
be obtained. Lap may be welded in factory or on site if
required.
Outlet Insert
Concrete
March 2012
25
26
ARDEX ECO Butynol
®
Fibre-backed Rubber Membrane System
BRANZ Appraised
E2/AS1 Acceptable Solution
DISCLAIMER The technical details, recommendations and other information contained in this data sheet are given in good faith and
represent the best of our knowledge and experience at the time of printing. It is your responsibility to ensure that our products are
used and handled correctly and in accordance with any applicable New Zealand Standard, our instructions and recommendations
and only for the uses they are intended. We also reserve the right to update information without prior notice to you to reflect
our ongoing research and development program. Country specific recommendations, depending on local standards, codes of
practice, building regulations or industry guidelines, may effect specific installation recommendations. The supply of our products
and services is also subject to certain terms, warranties and exclusions, which may have already been disclosed to you in prior
dealings or are otherwise available to you on request. You should make yourself familiar with them.
27
ARDEX ECO Butynol®
Fibre-backed Rubber Membrane System
ECO BUTYNOL® GAUGES
Standard 1.0mm – For roofs, gutters and decks with
protection.
1.2mm – For roofs
1.5mm – For roofs and walk out decks
2.25mm – Heavy Duty
Appraisal No.436 [2011]
Factory welded panels in all gauges can be custom
made.
ECO BUTYNOL® SYSTEM SPECIFICATION
PACKAGING
Butynol® synthetic rubber with properties which resist
ageing from heat, sunlight and ozone. Polypropylene
filaments are welded on to one side of the membrane
for better wetting by water based adhesives. It has
excellent gas impermeability and toughness and
remains flexible at low temperatures. Eco Butynol® is
marketed by Ardex as a warranted roofing and tanking
product using solvent free water based adhesive, Ardex
WPM 09A and catalyst Ardex WPM 09C and fixed by
their trained and experienced approved Applicators.
Eco Butynol® is packaged in rolls of nominal 1.4m width
and 17.86m long. Each roll is packed in polythene
wrapper trademarked Eco Butynol® with thickness
identified. Coverage 25m2 except 2.25mm gauge which
is 12m2.
BUTYNOL MATERIAL SPECIFICATIONS
1.2mm dove grey. Weight: nominal 32kg
(For the rubber part) Our requirements for long term
warranty necessitate that the rubber part of Eco
Butynol® meets these typical technical requirements:
1.5mm all colours. Weight: nominal 47kg
®
Specific Gravity to ASTM D297
1.20±0.05
Hardness IRHD to ASTM D1415
65±5
Tensile Strength to ASTM D412
8.3 MPa min
Modulus at 300% elongation to ASTM D4124.15 MPa min
Elongation at break to ASTM D412300% min
Heat Ageing (7 days at 115°C)
Tensile Retention to ASTM D412
70% min
Elongation Retention to ASTM D412
70% min
Tear Strength to ASTM D624
26kN/m
Ozone Resistance to ASTM D1149
No visible cracks
(7 days at 40°C in
50pphm ozone)
Water Absorption to ASTM D471
1.65% (by mass)
Water Permeability to ASTM E96-92
0.72% (by volume)
Vapour Flow Resistance
12414 (MNs/g)
Vapour Flow Rate
0.013 (g/m2d)
Note: Interesting comparable figures for water
permeability are –
Polythene 156, Asphalt 1830, P.V.C. 4900
K Values on 1mm Eco Butynol® sheeting
K Value (Thermal Conductivity) 7.4 x 103Cal/cm/sec/
deg C
Conductivity Data on 1mm Eco Butynol® sheeting
Resistance/m2 Ω /m2 = 0.6816 on 9.3 volts
28
Gauges available are:
1.0mm black. Weight: nominal 30kg
1.5mm black. Weight: nominal 45kg
2.25mm black. Weight: nominal 32kg
ADHESIVE
IMPORTANT NOTE
Ardex WPM 09A Adhesive is specially formulated for all
Eco Butynol® applications. Supplied in 15L plastic pails.
For information on the following please refer to
Ardex Butynol® section
BUTYNOL® SEALANT
SUBSTRATE VENTILATION
Available in tubes for caulking guns.
PLYWOOD TREATMENT
DURABILITY
SEAM PRIMER
Seam Primer is specially formulated for use with Seam
Tape. It is solvent based. Seam Primer makes up
less than 5% of the average roofing job. Applied with
scrubber pads. Available in 4 and 1 litre cans.
SEAM TAPE
EXTERNAL MOISTURE
BUILDING TO NZBC ACCEPTABLE SOLUTION
E2/AS1
CLEANING WEATHERED ECO BUTYNOL®
DAMP AND WEATHERPROOFING
Recommended for all Butynol laps.
®
Supplied by Ardex in 50mm x 30.5m rolls (6 to a
carton).
DETAIL TAPE (uncured)
A malleable exterior tape for flashing exterior corners
etc. 150mm x 30.5m rolls.
FLASHING TAPE
A malleable tape for moulding in gussets, pipe flashings
and awkward situations. Supplied in 100mm x 5m rolls.
Flashing tape must not be left exposed. A cover strip
of Butynol® or detail tape must be applied over flashing
tape to finish.
ADHESIVE AND CATALYST FOR USE WITH
ECO BUTYNOL®
Ardex WPM 09A The Standard contact brushing, spray grade and rolling adhesive for fixing to the substrate. (Pitch 5° and above)
PAINTING OVER ECO BUTYNOL®
FIRE RATING
PRODUCT WARRANTY
WORKMANSHIP
SUBSTRATE SPECIFICATION (Plywood)
SUBSTRATE SPECIFICATION (Concrete)
TYPICAL ARCHITECTURAL SPECIFICATION
LAYING SPECIFICATION
LAYING THE ECO BUTYNOL®
LOOSE LAID APPLICATION
Note that detail drawings in the Ardex Butynol® section
apply to Eco Butynol® except solvent free WPM 09A
adhesive is to be used.
Ardex WPM 09C Catalyst to be used in conjunction with Ardex WPM 09A. Improves bond, creates instant grab
NOTES
1. As new substrate materials continually appear on the
market, consult Ardex for approval of their use with Eco
Butynol®.
2. For all lap joints, Ardex Seam Tape and Seam Primer
must be used on all joints.
3. Do not use in temperatures less than 6°C.
March 2012
29
30
Product
1.1
Ardex Undertile Sheet Membrane (WPM 750) is a synthetic rubber membrane for
use in internal wet areas to be covered with ceramic or stone tiles.
Appraisal No.727 [2011]
BRANZ Appraisals
Technical Assessments of products
for building and construction
BRANZ
APPRAISAL
No. 727 (2011)
ARdex uNdeRTILe
SheeT memBRANe
(WPm 750)
Ardex New Zealand Limited
P O Box 19549
Christchurch
Tel: 03 384 3029
Fax: 03 384 9779
Web: www.butynol.co.nz
Scope
2.1
Ardex Undertile Sheet Membrane (WPM 750) has been appraised for use as
waterproofing membrane for internal wet areas of buildings, within the following scope:
VË on floor substrates of concrete, plywood, compressed fibre cement sheet and fibre
cement sheet tile underlay, and on wall substrates of concrete, concrete masonry, wet
area fibre cement sheet lining systems and wet area plasterboard lining systems; and,
VË when protected from physical damage by ceramic or stone tile finishes; and,
VË where floors are designed and constructed such that deflections do not exceed 1/360th
of the span.
2.2
The use of Ardex Undertile Sheet Membrane (WPM 750) on concrete slabs where
hydrostatic or vapour pressure is present from below is outside the scope of this Appraisal.
2.3
Movement and control joints in the substrate must be carried through to the tile
finish. The design and construction of the substrate and movement and control joints is
specific to each building, and therefore the responsibility of the building designer and
building contractor and is outside the scope of this Appraisal.
2.4
The ceramic or stone tile finishes are outside the scope of this Appraisal.
2.5
The membrane must be installed by trained applicators, approved by Ardex New
Zealand Limited.
Building Regulations
BRANZ Limited
Private Bag 50 908
Porirua City
New Zealand
Tel: +64 4 237 1170
Fax: +64 4 237 1171
www.branz.co.nz
New Zealand Building Code (NZBC)
3.1
In the opinion of BRANZ, Ardex Undertile Sheet Membrane (WPM 750)
if designed, used, installed and maintained in accordance with the statements and
conditions of this Appraisal, will meet the following provisions of the NZBC:
Clause B2 DURABILITY: Performance B2.3.1 (b) 15 years. Ardex Undertile Sheet
Membrane (WPM 750) meets this requirement. See Paragraph 9.1.
Clause E3 INTERNAL MOISTURE: Performance E3.3.6. Interior wet area floors and walls
incorporating Ardex Undertile Sheet Membrane (WPM 750) will meet this requirement. See
Paragraphs 11.1- 11.6.
Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Ardex Undertile
Sheet Membrane (WPM 750) meets this requirement and will not present a health hazard
to people.
Readers are advised to check the validity of this Appraisal by referring to the Valid Appraisals listing on the BRANZ website, or by contacting BRANZ.
must be provided so that the maximum span of the substrate
as specified by the substrate manufacturer is met and all sheet
edges are fully supported.
7.5
Ardex Undertile Sheet Membrane (WPM 750) must
not be used to bridge or cover over existing expansion, control,
construction, cold or saw cut joints.
This is an Appraisal of an Alternative Solution in terms of New
Zealand Building Code compliance.
Technical Specification
4.1
Materials supplied by Ardex New Zealand Limited are
as follows:
Substrates
Ardex Undertile Sheet Membrane (WPM 750)
VË A single ply synthetic rubber membrane with polypropylene
filaments welded to both sides, this enables better wetting
out by water based adhesives. It is supplied as a 1.0mm
thick, 1.4m wide x 20m long roll.
Ardex WPM 09A – Solvent Free Adhesive
VË A solvent free adhesive for bonding Undertile Butynol (WPM
750) to all substrates. It is supplied in 15l containers.
Ardex WPM 09C – Catalyst
VË A solvent free catalyst for Ardex WPM 09A Solvent free
Adhesive to speed up adhesive cure in adverse conditions. It
is supplied in 5l containers.
Plywood
8.1
Plywood must be a minimum of 17 mm thick
complying with AS/NZS 2269, CD Grade Structural with sanded
C face upwards and treated to H3 (CCA treated). LOSP treated
plywood must not be used. The plywood must be supported
with dwangs or framing with a maximum span of 400 mm in
each direction and fixed with 10 g x 50 mm stainless steel
countersunk head screws at 150 mm centres on the edges and
200 mm through the body of the sheets.
Fibre Cement Compressed Sheet / Fibre Cement Sheet Tile
Underlay
8.2
Fibre cement compressed sheet must be manufactured
to comply with the requirements of AS 2908.2 and must be
specified by the manufacturer as being suitable for use as a
wet area substrate. Fibre cement sheet tile underlay must be
suitable for use in internal wet areas. Installation must be in
accordance with the instructions of the manufacturer.
Concrete and Concrete Masonry
8.3
Concrete and concrete masonry substrates must be to
a specific engineering design meeting the requirements of the
NZBC, such as concrete construction to NZS 3101, concrete
slab-on-ground to NZS 3604, and concrete masonry to NZS
4229 and NZS 4230.
Ardex Clamp Waste Outlet
VË A floor waste outlet designed to clamp the membrane and
supplied as part of the system. The plumbing aspects of the
floor waste outlet has not been assessed by BRANZ and are
outside the scope of this Appraisal.
Handling and Storage
5.1
All materials must be stored inside, up off concrete
floors, in dry conditions, out of direct sunlight and out of freezing
conditions.
Wet Area Wall Linings
8.4
Plasterboard wall linings must be manufactured to
comply with AS/NZS 2588 and be suitable for use in internal
wet areas.
8.5
Fibre cement sheet manufactured to comply with
the requirements of AS 2908.2 and must be specified by the
manufacturer as being suitable for use in wet areas.
Technical Literature
6.1
Refer to the Appraisals listing on the BRANZ website for
details of the current Technical Literature for the Ardex Undertile
Sheet Membrane (WPM 750). The Technical Literature must be
read in conjunction with this Appraisal. All aspects of design,
use, installation and maintenance contained in the Technical
Literature and within the scope of this Appraisal must be
followed.
Durability
Serviceable Life
9.1
Ardex Undertile Sheet Membrane (WPM 750), when
subjected to normal conditions of environment and use, is
expected to have a serviceable life of at least 15 years and be
compatible with ceramic or stone tile finishes with a design
service life of 15-25 years.
Design Information
General
7.1
Ardex Undertile Sheet Membrane (WPM 750) is for
use in buildings where an impervious waterproof membrane
is required to floors and walls to prevent damage to building
elements and adjoining areas.
7.2
The membrane must be protected from physical
damage by the application of ceramic or stone tile finishes.
7.3
Movement and control joints may be required
depending on the shape and size of the building or room, and
the tile finish specified. Design guidelines can be found in the
BRANZ “Good Practice Guide Tiling”.
7.4
Timber framing systems must comply with NZS 3604,
or where specific engineering design is used, the framing shall
be of at least equivalent stiffness to the framing provisions of
NZS 3604, or comply with the serviceability criteria of AS/NZS
1170. Timber framing systems supporting the substrates must
be constructed such that deflections do not exceed 1/360th of
the span. Where NZS 3604 is used, the allowable joist spans
given in Table 7.1 shall be reduced by 20%. In all cases framing
Maintenance
10.1
No maintenance of the membranes will be required
provided significant substrate movement does not occur and
the tile finish remains intact. Regular checks must be made
of the tiled areas to ensure they are sound and will not allow
moisture to penetrate. Any cracks or damage must be repaired
immediately by repairing the tiles, grouts and sealants.
10.2
In the event of damage to the membrane, the tiling
must be removed and the membrane repaired by removing the
damaged portion and applying a patch as for new work.
10.3
Drainage outlets must be maintained to operate
effectively, and ceramic or stone tile finishes must be kept clean.
2
Internal Moisture
14.4
water.
11.1
Ardex Undertile Sheet Membrane (WPM 750) is
impervious to water and when appropriately designed and
installed will avoid the likelihood of water penetrating behind
linings or entering concealed spaces.
11.2
Ardex Undertile Sheet Membrane (WPM 750) is
suitable for use to contain accidental overflow to meet NZBC
Clause E3.3.2. A means of Code Compliance for overflow is
given in NZBC Acceptable Solution E3/AS1 Paragraph 2.
11.3
Surfaces must be finished with ceramic or stone tile
finishes. A means of Code Compliance to NZBC Clause E3.3.3
and E3.3.4 is given in NZBC Acceptable Solution E3/AS1
Paragraph 3.1.1 (b), 3.1.2 (b) and 3.3.1 (b).
11.4
Falls in showers and shower areas must be a minimum
of 1 in 50. In unenclosed showers, falls must extend a minimum
of 1500 mm out from the shower rose. Floor wastes must be
provided and the floor must fall to the outlet.
11.5
The waterproofing membrane must completely cover
shower bases, and for unenclosed showers it must extend a
minimum of 1500 mm out from the shower rose. Further design
guidance on waterproofing wet areas, including waterproofing
walls and junctions can be obtained from AS 3740, BRANZ
“Good Practice Guide Tiling”, and flooring and wallboard
manufacturers.
11.6
Where water resistant wall finishes such as prefinished
sheet materials are used, they must flash over the membrane a
minimum of 30mm.
Clean up of the adhesive may be undertaken with
Tiling
15.1
The installed membrane must be protected at all times
to prevent mechanical damage, so may require temporary
covers until the finishing is completed.
15.2
Tiling must be undertaken in accordance with AS
3958.1 and BRANZ “Good Practice Guide Tiling”. The
compatibility of the tile adhesive must be confirmed with Ardex
New Zealand Limited.
Inspections
16.1
Critical areas of inspection are:
VË Construction of substrates, including crack control and
installation of bond breakers and movement control joints.
VË Moisture content of the substrate prior to the application of
the membrane.
VË Acceptance of the substrate by the membrane installer prior
to application of the membrane.
VË Installation of the membrane to the manufacturer’s
instructions.
Health and Safety
17.1
Safe use and handling procedures for the membranes
are provided in the Technical Literature. The materials must
be used in conjunction with the relevant Material Safety Data
Sheet.
Installation Information
Installation Skill Level Requirement
Basis of Appraisal
12.1
Installation of the membrane must be completed by
Ardex New Zealand Limited trained and approved applicators
that have experience in the application of waterproofing
membranes and understand waterproofing principles.
12.2
Installation of substrates must be completed by
tradespersons with an understanding of internal wet area
construction, in accordance with instructions given within
the Ardex New Zealand Limited Technical Literature and this
Appraisal.
The following is a summary of the technical investigations
carried out:
Tests
18.1
The following testing of Ardex Undertile Sheet
Membrane (WPM 750) has been undertaken by various
organisations:
VË Testing to AS/NZS 4858: 2004.
VË Testing for cyclic movement, adhesion to substrates,
resistance to aging, resistance to water, resistance to
chemicals and water absorption.
The above test methods and results have been reviewed by
BRANZ and found to be satisfactory.
Preparation of Substrates
13.1
Substrates must be dry, clean and stable, with surfaces
that are even and free from nibs, sharp edges, dust, dirt or other
materials such as oil, grease or concrete formwork release
agents before installation commences.
13.2
The relative humidity of the concrete must be 75% or
less before membrane application. Concrete substrates can be
checked for dryness by using a hygrometer as set out in BRANZ
Bulletin No. 424. The plywood and timber substructure shall
have a maximum moisture content of 20%.
13.3
All voids, cracks, holes, joints and excessively rough
areas must be filled to achieve an even and uniform surface.
Junctions of substrate abutments, such as at wall/floor and wall/
wall junctions greater than 3 mm must be detailed and installed
as set out in the Technical Literature.
Other Investigations
19.1
An assessment was made of the durability of the Ardex
Undertile Sheet Membrane (WPM 750) by BRANZ technical
experts.
19.2
Site visits have been carried out by BRANZ to assess
the practicability of installation and to examine completed
installations.
19.3
The Technical Literature has been examined by BRANZ
and found to be satisfactory.
Membrane Installation
Quality
14.1
Installation must not be undertaken where the substrate
surface temperature is below 5ºC or above 35ºC.
14.2
The membrane must be applied as per the Technical
Literature.
14.3
Adhesive application can be made by brush, roller or
sprayer.
20.1
The manufacture of the membrane has been examined
by BRANZ and details regarding the quality and composition
of the materials were obtained by BRANZ and found to be
satisfactory.
3
20.2
The quality management system of the membrane’s manufacturer has been
assessed and found to be satisfactory.
20.3
The quality of manufacture of the membrane is the responsibility of the
manufacturer.
20.4
The quality of supply of the membrane system materials to the market is the
responsibility of Ardex New Zealand Limited.
20.5
Quality on site is the responsibility of the Ardex New Zealand limited approved and
trained applicators.
20.6
Designers are responsible for the substrate design, and building contractors are
responsible for the quality of construction of substrate systems in accordance with the
instructions of the substrate manufacturer, Ardex New Zealand Limited and this Appraisal.
20.7
Building owners are responsible for the maintenance of the tiling or stone finishing
systems in accordance with the instructions of Ardex New Zealand Limited Ltd.
Sources of Information
VË
VË
VË
VË
VË
VË
VË
VË
VË
VË
VË
AS 2908.2: 2000 Cellulose-cement products - flat sheet.
AS 3740: 2010 Waterproofing of wet areas within residential buildings.
AS 3958.1: 1991 Guide to the installation of ceramic tiles.
AS/NZS 1170: 2002 Structural design actions.
AS/NZS 4858: 2004 Wet area membranes.
AS/NZS 2269: 2008 Plywood - Structural.
NZS 3101: 1995 The design of concrete structures.
NZS 3604: 2011 Timber-framed buildings.
NZS 4229: 1999 Concrete masonry buildings not requiring specific engineering design.
NZS 4230: 1990 Code of practice for the design of masonry structures.
New Zealand Building Code Handbook Department of Building and Housing, Third
Edition September 2010.
VË The Building Regulations 1992.
VË Good Practice Guide Tiling, BRANZ, March 2004.
VË Good Practice Guide Membrane Roofing, BRANZ , October 2003.
In the opinion of BRANZ, Ardex
WPM 750 Undertile Butynol Wet
Area Membrane is fit for purpose
and will comply with the Building
Code to the extent specified in
this Appraisal provided it is used,
designed, installed and maintained
as set out in this Appraisal.
The Appraisal is issued only to
Ardex New Zealand Limited, and is
valid until further notice, subject to
the Conditions of Appraisal.
Conditions of Appraisal
1. This Appraisal:
a) relates only to the product as described
herein;
b) must be read, considered and used in full
together with the technical literature;
c) does not address any Legislation,
Regulations, Codes or Standards, not
specifically named herein;
d) is copyright of BRANZ.
2. Ardex New Zealand Limited:
a) continues to have the product reviewed by
BRANZ;
b) shall notify BRANZ of any changes in
product specification or quality assurance
measures prior to the product being
marketed;
c) abides by the BRANZ Appraisals Services
Terms and Conditions.
d) Warrants that the product and the
manufacturing process for the product are
maintained at or above the standards, levels
and quality assessed and found satisfactory
by BRANZ pursuant to BRANZ’s Appraisal
of the product.
3. BRANZ makes no representation or
warranty as to:
a) the nature of individual examples of, batches
of, or individual installations of the product,
including methods and workmanship;
b) the presence or absence of any patent or
similar rights subsisting in the product or
any other product;
c) any guarantee or warranty offered by Ardex
New Zealand Limited.
4. Any reference in this Appraisal to any other
publication shall be read as a reference to
the version of the publication specified in
this Appraisal.
5. BRANZ
provides
no
certification,
guarantee, indemnity or warranty, to Ardex
New Zealand Limited or any third party.
For BRANZ
P Burghout
Chief Executive
Date of issue: 12 August 2011
ARDEX WPM 750
Undertile Butynol®
Rubber Membrane Waterproofing System
DISCLAIMER The technical details, recommendations and other information contained in this data sheet are given in good faith and
represent the best of our knowledge and experience at the time of printing. It is your responsibility to ensure that our products are
used and handled correctly and in accordance with any applicable New Zealand Standard, our instructions and recommendations
and only for the uses they are intended. We also reserve the right to update information without prior notice to you to reflect
our ongoing research and development program. Country specific recommendations, depending on local standards, codes of
practice, building regulations or industry guidelines, may effect specific installation recommendations. The supply of our products
and services is also subject to certain terms, warranties and exclusions, which may have already been disclosed to you in prior
dealings or are otherwise available to you on request. You should make yourself familiar with them.
35
ARDEX WPM 750
Undertile Butynol® - Rubber Membrane Waterproofing System
UNDERTILE BUTYNOL® SPECIFICATION
SUBSTRATE SPECIFICATION
Ardex WPM 750 (Undertile Butynol ) is made up of
synthetic rubber with properties which resist ageing
from heat, sunlight and ozone and is heat weldable.
Polypropylene filaments are welded onto both sides
of the membrane for better wetting by water based
adhesives. It has excellent gas impermeability and
toughness and remains flexible at low temperatures.
Plywood & TimberSubstrates must be dry when
Undertile Butynol® is applied. The plywood and timber
substructure shall have a maximum moisture content of
20% when Undertile Butynol® is adhered.
®
Laps and corners are to be heat formed and/or welded.
Tiling can be done directly on the membrane after 60
minutes with common Ardex tiling adhesives like X77,
X56 STS8/E90, Quickbond/Abalastic, 2 part Optima or
ABAFLEX.
Undertile Butynol® is marketed by Ardex as a warranted
undertile waterproofing product using solvent free
adhesives and fixed by their trained and experienced
approved Applicators.
UNDERTILE BUTYNOL® MATERIAL SPECIFICATIONS
Our requirements for long term warranty necessitate
that the Undertile Butynol® meets these typical technical
requirements:
OTHER SUBSTRATE TYPES
Fibre cement compressed sheet, closed cell
polyurethane foam, wet wall linings i.e. Gib Aqualine,
VillaBoard.
New Concrete
Must be cured for a minimum of 28 days and all curing
compounds removed prior to application. A reduction
in cure time can be achieved by utilising the Ardex
HydrEpoxy System (consult Ardex Technical Department
for details)
Old Concrete
Must be clean from any contaminants prior to application
Specific Gravity to ASTM D297
1.30±0.05
Hardness IRHD to ASTM D1415
65±5
ADHESIVES FOR USE WITH UNDERTILE BUTYNOL®
Tensile Strength to ASTM D412
4.86 MPa min
WPM 09A
Elongation at break to ASTM D412300% min
Water Absorption to ASTM D471
1.65% (by mass)
(for 1mm Butynol®)
0.72% (by volume)
Water Permeability to ASTM E96-92
Vapour Flow Resistance
(for 1mm Butynol®)
12414 (MNs/g)
Vapour Flow Rate
(for 1mm Butynol®)
0.013 (g/m2d)
Note: Interesting comparable figures for water
permeability are –
Polythene 156, Asphalt 1830, P.V.C. 4900
K Values on 1mm Butynol® sheeting
The standard contact brushing, spray grade and rolling solvent free adhesive for fixing to the substrate. Supplied in 20L plastic containers.
WPM 09C Catalyst to assist adhesion in adverse conditions.
DURABILITY
Undertile Butynol® when fixed according to Ardex
instruction will meet the NZBC requirements of B2.3.1(b)
15 years.
Refer BRANZ Appraisal Certificate No 727 2011.
PRODUCT WARRANTY
Standard 0.5mm – For undertile waterproofing
When laid by an approved Applicator in accordance with
Ardex’s specifications, a material warranty for up to 20
years is available. Ardex is not responsible for any costs
arising from installation of the Membrane and does not
provide any warranty other than where a written Ardex
material warranty has been issued.
RESISTANCE
WORKMANSHIP
Undertile Butynol® resists tearing, flex cracking,
bubbling and abrasion. It is extremely strong, has a long
life and is versatile.
A warranty for workmanship shall be provided directly
by the approved Applicator. The period and terms of
the workmanship warranty shall be determined by the
conditions of the contract or the approved Applicator.
K Value (Thermal Conductivity): 7.4 x 103Cal/cm/sec/
deg C
UNDERTILE BUTYNOL® GAUGES
PACKAGING
Rolls of nominal 1.4m x 20m long. Rolls are packed in
polythene wrapper trademarked Undertile Butynol®.
36
NOTE: The use of LOSP (Light Organic Solvent
Preservative) treated plywood must NOT be used under
Undertile Butynol® in any circumstances or conditions.
TYPICAL ARCHITECTURAL UNDERTILE BUTYNOL®
SPECIFICATION
1. Preliminary
Refer to the Preliminary & General Clauses of this
specification and to the General Conditions of Contract
which are equally binding on all trades. This section of
the specification shall be read in conjunction with all
other sections.
2. Scope
This section of the contract consists in general of the
provision and laying of the Undertile Butynol® in wet
areas.
3. Workmanship
The whole of the work shall be carried out by skilled
tradesmen using adequate and proper equipment
and methods in accordance with best trade practice,
and following the specifications, methods and
recommendations as laid down by the manufacturers.
4. Sub-contractors
The work included in this section of the contract shall
be carried out by a firm of waterproofing experts
conversant with and specialising in the supply and fixing
of this materials and shall be a firm approved by Ardex.
5. Warranty
8. Completion
On completion carefully and thoroughly clean off and
remove all scraps and other rubbish from finished
surfaces and leave in tidy order.
9. Extent of Work
Observe the foregoing specification and supply and lay
Undertile Butynol® sheeting to all wet areas as shown
and detailed in the drawing and in accordance with AS/
NZS3740.Failure to comply with the above specifications
will result in all warranties being null and void.
LAYING SPECIFICATION
The sub-contractor for the work called for in this trade
will be a Company or Person approved by Ardex. The
approved installer shall examine all drawings and provide
for the surface to which Undertile Butynol® is to be fixed
shall be clean, smooth, dry and free from sawdust, grit
or sharp objects. Membrane laying shall not start until
defects have been corrected. On completion the installer
will provide the owner with a Workmanshop Warranty
and obtain from Ardex a Materials Warranty. Failure to
comply with the above specifications will result in all
warranties being null and void.
INSTALLATION
When laid by an approved Applicator in accordance with
Ardex’s specifications, a written material warranty of
up to 20 years is available. It is the responsibility of the
approved Applicator to confirm proper installation and
to request Ardex to issue a material warranty on behalf
of the customers following completion of installation.
Ardex is not responsible for any costs arising from
installation and does not provide any warranty other
than where a written Ardex material warranty has been
issued.
Roll out Undertile Butynol® and cut to the measured
length. Smooth Undertile Butynol® on contact to
minimise air entrapment beneath the membrane. Floor
sheets of Undertile Butynol® must extend up the wall at
least 150mm. Make sure the Undertile Butynol® is laid
tightly into all corners. Wall sheets of Undertile Butynol®
should overlap the 150mm upstand. Weld seams and
laps with the Leister Triac S Hot Air Gun. Roll with a
rubber roller to ensure seams and laps are secure.
6. Materials
Apply the Undertile Butynol® membrane 1800mm up the
walls or to a height of 150mm above the shower rose.
For unenclosed showers the membrane must extend a
minimum of 1500mm out from the shower rose.
6.1 Undertile Butynol® Membrane
Shall be 0.5mm thick Undertile Butynol® in all wet area
surfaces , where membrane is to be overlaid with tiles.
Walls, internal corners & transitions
6.2 Adhesives
PROTECTION
Shall be recommended by Ardex specially formulated
for Undertile Butynol® and suitable for the particular
application and the relevant temperature and conditions
applicable.
Undertile Butynol® is not suitable as a trafficable
surface.
7. Laying of Undertile Butynol®
The Undertile Butynol® installer shall check the
substrate before laying any membrane to ensure
that the surface is completely sound, screw fixed to
specifications: screw heads flush, sheets spaced to
provide for thermal movement or shock.
Undertile Butynol® is compatible with undertile heating
systems. For electric undertile heating, the wire must be
laid under the membrane.
It is the responsibility of the main building contractor
to ensure all sub-trades likely to be working in the
vicinity of the membrane are aware that a waterproofing
membrane has been installed and all care must be taken
to protect the membrane from damage. The tiler must
lay tiles in accordance with best practice guidelines.
37
ARDEX WPM 750
Undertile Butynol® - Rubber Membrane Waterproofing System
LAYING UNDERTILE BUTYNOL® IN BATHROOM WET AREAS in accordance with AS/NZS 3740
Extent of treatment of wet areas - shower area
over bath - unenclosed shower
TYPICAL SHOWER CONSTRUCTION
Flashing
Optional shower
panel
External system
Shower membrane installed
before wall sheeting
1800mm
00
Measured from the
shower connection
at the wall
15
If confined by
shower screen
mm
Waterproof to 1800mm from
finished floor level, width of
40mm either side of the junction
Hob placed inside tray
Vertical flashing angle
to finish inside tray
For concrete and compressed fibre
cement sheet floors
Flashing
Waterproof to 1800mm from
finished floor level, width of
40mm either side of the junction
Shower membrane installed
after wall sheeting
1800mm
If confined by
shower screen
Internal system
Optional shower
panel
Waterproof
entire floor
For timber floors including particleboard, plywood and other
flooring materials apply Undertile Butynol® waterproofing
membrane to entire floor
Enclosed shower
Waterproof to 1800mm from
finished floor level, width of
40mm either side of the junction
TYPICAL HOB CONSTRUCTION
The shower screen to be
installed so as to be flush
with the shower area side
of the hob or overhanging
into shower area
For showers with hobs and stepdowns
Undertile Butynol® to be applied to
minimum height of 150mm above
finished level of the floor or 25mm
above maximum retained water level
(which ever is the greater)
CL
Top of tray side membrane
Sealant
Internal membrane
under hob
Shower side
Shower screen
For concrete and compressed fibre
cement sheet floors
38
Tiles
Substrate
Mortar bed
March 2012
ARDEX Butynol
Shingles
®
DISCLAIMER The technical details, recommendations and other information contained in this data sheet are given in good faith and
represent the best of our knowledge and experience at the time of printing. It is your responsibility to ensure that our products are
used and handled correctly and in accordance with any applicable New Zealand Standard, our instructions and recommendations
and only for the uses they are intended. We also reserve the right to update information without prior notice to you to reflect
our ongoing research and development program. Country specific recommendations, depending on local standards, codes of
practice, building regulations or industry guidelines, may effect specific installation recommendations. The supply of our products
and services is also subject to certain terms, warranties and exclusions, which may have already been disclosed to you in prior
dealings or are otherwise available to you on request. You should make yourself familiar with them.
39
ARDEX Butynol® Shingles
LAYING ARDEX BUTYNOL® DIAMOND SHINGLES
LAYING ARDEX BUTYNOL® STANDARD SHINGLES
Setting Out
1. Mark the substrate horizontally with a chalk line
350mm up from bottom.
Priming Substrate
In areas where rain could interrupt work, it is
recommended that a primer coat of WA98 adhesive be
applied to substrate to prevent penetration of moisture.
2. Mark a vertical line, top to bottom, and centre of
the roof.
3. Mark off 300mm vertical spacings from the centre
vertical line (both sides).
Laying
1. Cut a starter flashing wide enough to cover the
first 350mm at the bottom edge of the roof, up to
the horizontal chalk line, allowing extra in width for
gutter or fascia flashing.
2. Apply adhesive, and lay when ready.
3. Starting from the centre vertical chalk line, loose
lay the first shingles, making sure that the top and
bottom are in line with the vertical marking. Now
loose lay the entire bottom row, making sure each
shingle is butted up to each other.
4. With chalk, mark the starter flashing where the
adhesive should be applied using the loose laid
shingles to mark around. This is to eliminate over
brushing of adhesive.
5. Remove loose laid shingles and apply adhesive to
substrate and shingles which are to be laid (up to 5
shingles are manageable at one time).
6. Lay when ready, starting with centre shingle and
making sure each shingle aligns with vertical
markings and is well butted together.
7. Lay entire bottom row first.
8. Following rows are laid identically, but are
staggered and overlap row below by 25mm.
Underflashings
Glue and fix Butynol® 380mm underflashing down
barges, valleys, hips etc. and also along the bottom of
the roof allowing an overhang into the gutter.
Laying
1. Make a chalk line horizontally along the roof, one
shingle height up. This line marks the top of the first
row of shingles. Apply adhesive by brush or roller to
substrate and shingle - approximately five at a time
for one person - pulling off plastic backing before
doing so. After flashing off time locate the top of the
shingle on the chalk line and smooth down.
2. To locate the next row, mark a horizontal chalk line
up one shingle height minus the overlap onto the
lower shingle.
3. Each shingle must now be carefully rolled, paying
special attention to lapped edges.
4. The top row of shingles may be cut to suit the apex
and a Butynol® overflashing used to finish at the
ridge.
Any excess adhesive should be cleaned off as you go,
with WA98 solvent.
Roof area coverage of 50 shingles is approximately
3.57m2.
Note: Ardex Shingles have a forty-five degree cut on
outside edges.
Bottom row of
shingles with Butynol
underflashing
9. Each shingle must be carefully rolled, paying
special attention to lapped edges.
380mm
10. The top row of shingles may be cut to suit the
specifications and a Butynol® overflashing used to
finish the ridge.
Any excess adhesive should be cleaned off as you go
with WA98 solvent.
Roof area coverage of 50 shingles is approximately
8.82m2.
Dotted lines indicate flashing strip
beneath shingles
Flashing into gutter
Standard Shingles
Approximately 580x290mm, 50% overlap of the shingle
below.
Raumati Shingle
Approximately 540x270mm. A 280x75mm fillet is
required to complete the seal.
After doing 350mm bottom flashing #1, then start
laying full shingles #2, #3, #4 etc.
Always start from centre on first row.
40
March 2012
ARDEX Optima
DISCLAIMER The technical details, recommendations and other information contained in this data sheet are given in good faith and
represent the best of our knowledge and experience at the time of printing. It is your responsibility to ensure that our products are
used and handled correctly and in accordance with any applicable New Zealand Standard, our instructions and recommendations
and only for the uses they are intended. We also reserve the right to update information without prior notice to you to reflect
our ongoing research and development program. Country specific recommendations, depending on local standards, codes of
practice, building regulations or industry guidelines, may effect specific installation recommendations. The supply of our products
and services is also subject to certain terms, warranties and exclusions, which may have already been disclosed to you in prior
dealings or are otherwise available to you on request. You should make yourself familiar with them.
41
ARDEX Optima
DESCRIPTION
MIXING
Ardex Optima is a two component cementitious
acrylic modified white adhesive. When mixed in the
recommended portions Ardex Optima produces a
resilient water resistant adhesive for bonding most
ceramic tiles to Butynol® Synthetic Rubber and other
substrates (see below).
Mixing ratio three parts of powder by weight to one part
of liquid (weight or volume).
APPLICATION RANGE
Location
Internal, external and water immersion.
Performance Levels
Residential, commercial and industrial.
Surfaces
Walls, floors and decks.
Tiles
Natural stone, porcelain, mosaics, fully vitrified &
ceramic tiles.
Uses
Particularly suited for adhering ceramic and clay tiles
to Butynol® decking and facings as per the Ardex
recommended direct-stick system described below.
Other suitable substrates
• Brick and blockwork
APPLICATION
Tile installation must conform to the requirements of the
Australian Standard 4992-2003.
Lay the tiles using Ardex Optima applied to the
membrane surface using a 12mm notched trowel to
achieve a dry bed thickness of not less than 2.5 - 3mm.
Place the tiles in position and work into the adhesive to
ensure a 100% coverage to the reverse side of the tiles.
Only spread the adhesive to an area of approximately
1m2 at a time to ensure that the tiles can be placed
before the adhesive forms a surface skin which will
inhibit the bond strength.
Allow the Ardex Optima to cure for at least 24 hours
before proceeding with the next stage. Low absorbency
tile can extend the cure time.
Tiles may also be adhered to a removeable layer of
Ardex DS60 to comply with (E2 7.3.1.1) with the ability
to lift the top surface off when necessary.
• Fibre cement sheets, plaster boards
GROUTING OF TILES
• Tilt up and pre-cast concrete
All joints should be grouted using Ardex Grouts with
Grout Booster (80:20) after the adhesive has fully
cured. After mixing the grout in accordance with the
instructions work it well into the joints ensuring there
are no voids under the grout. Apply the grout to a small
area of approximately 1m2 at a time and clean excess
grout from that area prior to proceeding. Only mix small
quantities of grout at a time to enable workability within
the pot life of the product.
• Cement render, concrete, aerated concrete
• Powder coated cladding, galvanised, stainless steel
(degreased), brass
• Existing tiles (thoroughly cleaned)
• Superflex and Shelter acrylic waterproofing
membranes
• Particleboard
• Roughened fibreglass
SUBSTRATE PREPARATION
Butynol
Butynol® must be cleaned to remove any dust or
contaminants. This can usually be accomplished by
using sugar soap and water, but if more stubborn
soils remain, contact your local Ardex representative
for instruction. Allow surface to dry before applying
adhesive.
42
Mix adhesive by mechanical means until a homogeneous
creamy paste is achieved, do not over mix. Allow mix to
stand for 2 minutes prior to use.
Finishing Ardex Grouts should be carried out in the
normal fashion by allowing the residual grout film to dry
and polish off to totally remove.
Abapoxy
When using Ardex Abapoxy, cleaning the excess grout
from the surface should be carried out using a wet cloth
wrapped around a firm rectangular item such as a block
of wood to remove the bulk of the excess. Surface
should be finally cleaned using a clean wet scourer to
remove all excess material from the joints and the tile
surfaces.
COVERAGE
TECHNICAL DATA
One 30kg/10L unit will cover 6m using a 12mm
notched trowel at the specified dry bed thickness of
2.5 - 3mm.
2
PACKAGING
Mini Kit (1.7L liquid/5kg powder)
Type
Two Part
Colour
White
Specific Gravity of liquid
1.02
pH
7.5
Application Properties (@ 23˚C, 50% RH)
Mixing Ratio
Powder/Liquid 30kg/10kg
Specific Gravity of Mix
1.67kg/litre
Viscosity of Mix
148,000 cps
Open Time
25 minutes
Adjustability Time
20 minutes
Pot Life
45 minutes
STORAGE AND SHELF LIFE
Water Absorption
1.18%
12 months when stored at 5°C - 25°C in airtight, sealed
container.
Shear Bond Strength (MPa)
Large Kit (10L liquid/6x5kg powder)
DRYING
Approximately 24 hrs at 23°C, 50% RH, allow longer for
colder conditions.
Mechanical Properties
7 days dry
2.7
CAUTION
14 days dry3.56
High temperatures caused by heat absorption by black
Butynol® will accelerate drying time.
7 days water immersion
2.86
8 month immersion in fresh
water concrete pool3.1
Tensile Strength (MPa)
7 days
2.3
March 2012
43
44
ARDEX Bonding/
Seam Primer
Solvent Based Primer
DISCLAIMER The technical details, recommendations and other information contained in this data sheet are given in good faith and
represent the best of our knowledge and experience at the time of printing. It is your responsibility to ensure that our products are
used and handled correctly and in accordance with any applicable New Zealand Standard, our instructions and recommendations
and only for the uses they are intended. We also reserve the right to update information without prior notice to you to reflect
our ongoing research and development program. Country specific recommendations, depending on local standards, codes of
practice, building regulations or industry guidelines, may effect specific installation recommendations. The supply of our products
and services is also subject to certain terms, warranties and exclusions, which may have already been disclosed to you in prior
dealings or are otherwise available to you on request. You should make yourself familiar with them.
45
ARDEX Bonding/Seam Primer
Solvent Based Primer
DESCRIPTION
SAFETY DIRECTIONS
Bonding Primer solvent based primer is designed to
lock particles on the substrate to achieve maximum
adhesion. It has excellent durability and is a low
viscosity binder that seals absorbent substrates and
penetrates dust.
Avoid contact with skin and inhalation of the vapour.
Provide adequate ventilation. Keep out of reach of
children. If swallowed contact a doctor or Poisons
Information Centre.
TYPICAL APPLICATIONS
Contact Ardex for specific applications and material
safety data sheet.
• New and old concrete
• Timber
• Compressed fibreboards
• Primer for acrylic coatings
APPLICATION REQUIREMENTS
General
Do not apply Bonding Primer if the temperature is below
5°C or above 35°C.
Substrate preparation
The surface to be coated should be dry, clean, sound
and free from oil, grease and flaking paint. New
concrete should be left a minimum of 28 days before
application commences. All cracks or holes exceeding
2mm are to be repaired before application commences.
APPLICATION SPECIFICATION
Apply with brush, long nap roller or conventional
spray. Ensure that the coating is applied evenly at the
recommended coverage rates. Allow a drying time of at
least one hour.
COVERAGE
Approximately 5-8m2/litre on horizontal and vertical
surfaces.
PACKAGING
4 litre and 1 litre cans.
CLEAN UP
Clean all equipment in general purpose thinners
immediately after use.
STORAGE
Bonding Primer must be stored above 6°C.
SHELF LIFE
One year in unopened containers stored at 20°C.
46
March 2012
ARDEX CA 20 P
Multipurpose Construction Adhesive
and Sealant (Butynol® Sealant)
Can be used underwater, ideal for minor repair applications
Extremely versatile - bonds a wide range of materials including
metal, glass, wood, ceramics and plastic
Use to seal expansion and connection joints
Extremely flexible
High initial tack and bond strength
Neutral curing system - free of solvents, water and isocyanates
Can be over painted
Shrinkage free drying
Single component Silane Modified Polymer (SMP)
Internal and external, wall and floor
Low VOC content - meets Green Building Council of Australia
Green Star IEQ-13 requirements
DISCLAIMER The technical details, recommendations and other information contained in this data sheet are given in good faith and
represent the best of our knowledge and experience at the time of printing. It is your responsibility to ensure that our products are
used and handled correctly and in accordance with any applicable New Zealand Standard, our instructions and recommendations
and only for the uses they are intended. We also reserve the right to update information without prior notice to you to reflect
our ongoing research and development program. Country specific recommendations, depending on local standards, codes of
practice, building regulations or industry guidelines, may effect specific installation recommendations. The supply of our products
and services is also subject to certain terms, warranties and exclusions, which may have already been disclosed to you in prior
dealings or are otherwise available to you on request. You should make yourself familiar with them.
47
ARDEX CA 20 P
Multipurpose Construction Adhesive
and Sealant (Butynol® Sealant)
DESCRIPTION
APPLICATION
Ardex CA 20 P has been specially designed and
formulated for sealing Butynol® flashings into chases.
Ardex CA 20 P has excellent sealing and adhesive
properties to Butynol® and a variety of building
components.
Remove aluminium seal at the bottom of the cartridge,
pierce the protective membrane at the tapered nozzle,
attach and trim nozzle to required size and place
cartridge in applicator gun.
Ardex CA 20 P is a one component, silane modified
polymer adhesive and neutral curing sealant which
hardens in reaction with moisture. Ardex CA 20 P is
extremely flexible, with a high initial tack and good
bond strength, making it suitable for a wide range of
applications. It is ideal as a general shower, kitchen
and bathroom repair adhesive and sealant for replacing
tiles, fitting accessories such as soap holders and
finishing off joints. Its shrinkage free drying and ability
to be used internally and externally on walls and floors
adds to the versatility of Ardex CA 20 P.
When using Ardex CA 20 P at low temperatures, it is
advisable to pre-warm the cartridge in warm water.
Do not apply Ardex CA 20 P at temperatures below 5°C
or above 35°C.
Apply Ardex CA 20 P in stripes to the substrate or to
the item to be fixed. Press the items firmly together
within 7-10 minutes after application (at a temperature
of 20°C) and before skinning of the adhesive starts. If
using the product for spot fixing repairs, ensure that the
maximum distance between glue points is 25 to 30cm
and observe the weight of the item being fixed.
It can be used in underwater applications, either applied
to the immersed substrate or to the item to be fixed,
making it ideal when minor repairs and alterations need
to be carried out.
The drying time depends on the substrate, climatic
conditions and the materials being fixed. Higher humidity
will shorten the open time, while lower humidity will
extend the open time.
USE
Close open cartridges and reuse as soon as possible.
Note: Always remove a small layer of any skinned
adhesive before reusing.
Ardex CA 20 P is ideal for bonding most construction
materials including glass, tiles, ceramics, wood, plastic
and metal. It can also be used for repairing areas
of loose tiles, carpet or vinyl, for fixing decorative,
acoustic and thermal insulation panels as well as
decorative beams and sections, also for fixing skirting
boards, cable ducts, mirrors, bathroom and shower
accessories, and door handles.
Ardex CA 20 P can be used for elastic joints between
wood, plastic, metal and ceramic materials or for
sealing expansion and connection joints.
Ardex recommend a trial application to optimise the
conditions for particular applications.
TO (Substrates)
Include concrete, wall panels, timber, waterproofing
membranes, glazed and unglazed ceramic tiles,
aluminium, plastics, metal, glass, fibreglass and
polystyrene foam.
SUBSTRATE PREPARATION
In general, the substrate or joint must be clean, firm
and free of dust, dirt, oil, grease, curing compounds,
old adhesive residues, paints, coatings, bitumen, tar,
release agents and other barrier materials.
If in doubt about characteristics, carry out a trial
application. Spillage can be removed when wet using a
clean cloth. If the material has dried then scraping with a
blade will be required.
PACKAGING
Ardex CA 20 P is packed in a metal cartridge 310ml net volume.
SHELF LIFE
Ardex CA 20 P has a shelf life of not less than 12 months
when stored in the original, unopened packaging, in a
dry place at 23°C and 50% relative humidity.
Pay attention to the following:
Ardex CA 20 P achieves a good bond underwater. We
recommend a trial application to ensure a good bond is
achieved. The long-term stability when fixed underwater
may vary depending on application.
Ardex CA 20 P can be over painted after drying with
most commonly used paints; due to the vast range of
paints and coatings on the market we recommend a
small test area prior to proceeding.
Do not use Ardex CA 20 P for chemical resistant
applications, use Ardex epoxy grouts.
Fixing onto fibreglass, with or without grinding the glaze,
is recommended only for small repair applications,
especially in swimming pools.
48
SAFETY PRECAUTIONS
FLASHING INTO CONCRETE WALLS
Use in well ventilated ares. Avoid skin and eye contact.
If uncured material makes contact with the eye, flush
with clean water for 15 minutes and seek medical
advice.
Contact Ardex for specific applications and material
safety data sheet.
150mm minimum
In case of skin contact, first wipe the skin with a dry
cloth then wash with soap and water. If respiratory
discomfort is experienced, move to an area for fresh
air. If swallowed, drink plenty of water in small portions,
do not induce vomiting and seek medical advice. Keep
out of reach of children.
Square chase
Ardex CA 20 P
Concrete
Radius Angle
Butynol®
Fillet
TECHNICAL DATA
Material Base
Silane Modified Polymer
Colour
White paste
Specific Gravity
approx 1.45kg/litre
Butynol® is glued into square chase and finished with
Ardex CA 20 P.
Application Properties (@ 23˚C, 50% RH)
Application Temperature
5˚C to 35˚C
Skinning/Open Time
approx 7-10 minutes
Curing Time3-4mm/24 hours
Shrinkage
<1%
Temperature Resistance
-40˚C to +90˚C
(short term of 15-20 minutes
up to +200˚C)
Practical Expansion
25%
Material Requirement30-40ml/m
Hardness, Shore A
approx 40
Mechanical Properties
AS 4992
Shear Adhesion Strength
>2MPa
Tensile Adhesion Strength 1.0N/mm2
March 2012
49
50
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