BARRIER
SPECIFICATION &
INSTALLATION GUIDE
J U LY 2 0 1 7
Information contained within is specific to Ecoply® Barrier structural plywood products and must
not be used with any other plywood products, no matter how similar they may appear.
Contents
1.0Ecoply® Barrier...................................................... 3
2.0 Ecoply Brand......................................................... 4
3.0 Technical Information & CAD Details................. 4
4.0 Ecoply Barrier Advantages................................... 4
4.1Architects/Designers............................................ 4
4.2Builders.................................................................. 5
4.3Homeowners........................................................ 5
5.0 Ecoply Barrier Components................................. 6
5.1Tapes...................................................................... 6
5.2 Coating - Panels..................................................... 6
6.0 Design Considerations.......................................... 7
7.0Installation.............................................................. 8
7.1Installation.............................................................. 8
7.2 Installation - Sheet Joins...................................... 11
7.3 Installation - Sill Tape.......................................... 15
7.4 Installation – Frame Sealing Tape....................... 16
7.5 Service Penetrations............................................ 17
7.6 Structural Bracing................................................ 18
7.7 Ecoply Barrier Bracing Specification - EPB1...... 19
7.8 Ecoply Barrier Bracing Specification - EP2......... 20
7.9 Ecoply Barrier Bracing Specification - EPBS....... 21
7.10 Ecoply Barrier Bracing Specification - EPBG..... 22
7.11 GIB HandiBrac® - Recommended Installation
Method................................................................ 23
7.12 Top Plate Hold-Down Connections.................. 24
7.13 Bracing Lengths................................................... 25
7.14 Lintel Tie Down Connection.............................. 27
7.15 Installation - Apron & Saddle Flashings.............. 28
8.0 Fire Rated Systems.............................................. 30
9.0 Cladding System Installation............................... 30
10.0 Working Instructions.......................................... 31
11.0 Referenced Documents...................................... 31
12.0 Frequently Asked Questions.............................. 32
13.0Limitations........................................................... 32
14.0 Ecoply Barrier Installation Checklist................... 33
14.1 Rigid Air Barrier Checklist.................................. 33
ECOPLY® BARRIER
1.0 ECOPLY® BARRIER
Ecoply® Barrier provides a weathertight rigid air barrier
system for drained and vented cavity systems outside the
building frame, effectively replacing traditional building
wrap in the cavity while providing structural bracing, and
forming a strong secondary line of defence against moisture
penetration into the building envelope.
This document contains information, limitations, and cautions
regarding the properties, handling, installation, usage, and the
maintenance of Ecoply Barrier. However, to the maximum
extent permitted by law, Carter Holt Harvey Woodproducts
New Zealand (CHH Woodproducts) assumes no legal liability
to you in relation to such information.
Ecoply Barrier is suitable for use in both residential and
commercial buildings and consists of a 7mm thick H3.2 CCA
(Copper Chrome Arsenate) water borne treated structural
plywood panel which is coated on the face and edges using
a polyester powder coating process for increased sheet
durability and protection from moisture penetration.
Ecoply Barrier panels are engineered to allow the wall system
to breathe and dry out, while also preventing the intrusion of
exterior moisture. Once the full system has been installed,
the system provides a lasting protective barrier.
Ecoply Barrier meets the New Zealand Building Code
(NZBC) requirements for rigid underlays as outlined in
section 9.1.4, the performance requirements of Table 23 of
NZBC Clause E2 External Moisture, Acceptable Solution
(E2/AS1), and has been tested for wind speeds exceeding
Extra High wind zone as defined in Standards New Zealand
3604 Timber Framed Buildings (NZS 3604). Testing has been
completed to provide solutions for buildings outside the
scope of NZS 3604. For details on this, please contact CHH
Woodproducts for further information.
A rigid air barrier is a barrier against air pressure and water
infiltration from the outside to the interior of the building.
A rigid air barrier acts as a secondary line of defence against
water penetrating into the wall system – the primary defence
being the exterior wall cladding.
Ecoply Barrier is BRANZ appraised for use as a rigid
sheathing and temporary weather-protecting sheathing on
timber framed buildings.
Ecoply Barrier must be competently installed in accordance
with good building practices and sound design principles to
satisfy the requirements of the Building Act 2004, the New
Zealand Building Code (NZBC), and applicable New Zealand
Standards. This is the responsibility of building owners and
the design professionals and builders that they engage.
What is a Rigid Air Barrier?
Definition of an Air Barrier:
• Impermeable to airflow — the system must be continuous
(no holes, openings or penetrations) and resistant to air
pressure differentials.
• Continuous over the entire building enclosure.
• Able to withstand the forces that may act on them during
and after construction.
Ecoply Barrier is a full sheathing system developed to prevent
unwanted air movement and
replace traditional building wrap.
Appraisal No.827 [2014]
The information contained in this document is current as at July 2017. It is your responsibility to ensure you have the most up to date
information available. The information contained in this publication relates specifically to Ecoply® Barrier manufactured by Carter Holt Harvey
Woodproducts New Zealand and must not be used with any other plywood manufacturer’s products no matter how similar they may appear.
Alternative plywood products can differ in a number of ways which may not be immediately obvious and substituting them for Ecoply Barrier
structural plywood products or Ecoply Barrier Tapes is not appropriate, and could in extreme cases lead to premature failure and/or buildings
which do not meet the requirements of the New Zealand Building Code (NZBC).
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
3
ECOPLY® BRAND
2.0 ECOPLY® BRAND
Ecoply® Barrier panels are manufactured in New Zealand by
CHH Woodproducts under a third party audited quality control
programme to monitor compliance with AS/NZS 2269 –
Plywood Structural.
3.0 TECHNICAL INFORMATION & CAD DETAILS
Technical data sheets and CAD drawings referenced in this guide are available for download from www.chhwoodproducts.co.nz.
Ecoply Barrier (Rigid Air Barrier) is compliant with NZBC Clause B2.3.1 (a), for not less than 50 years, when used where the cladding
durability requirement or serviceable life is not less than 50 years, e.g. structural bracing, and compliant with NZBC Clause B2.3.1 (b),
for 15 years where the cladding durability requirement is 15 years when used as a temporary sheathing.
When specifying or installing Ecoply Barrier visit www.chhwoodproducts.co.nz or call 0800 326 759 to ensure you have current
specification material and any relevant technical notes.
4.0 ECOPLY­® BARRIER ADVANTAGES
4 . 1 A RC H I T E C T S / D E S I G N E R S
Modern construction practices are moving toward providing
greater energy efficiency and an airtight building envelope.
These principles of high performance building are common in
nearly all current green building standards and construction codes.
Proper sealing between wall assembly components prevents
unwanted air movement in and out of conditioned air spaces.
Advantages:
• Ecoply Barrier can form an integral part of a weathertight
system including two of the four ‘Ds’ of weathertightness;
drying and drainage.
• A rigid air barrier provides a more robust cavity and prevents
the insulation bulging, which would increase the chance of
moisture bridging from the cladding to the framing line.
• Provides both structural support and protection from moisture.
Structural bracing is achieved when installed in accordance with
the Ecoply Barrier bracing specifications. Bracing benefits may
result in cost savings by reducing internal lining bracing elements
(Refer to section 7.6 on bracing).
• BRANZ appraised system, fully tested and code compliant rigid
air barrier system.
• Manufactured from sustainable plantation pine and available
FSC certified (SCS-COC-001316) upon request.
• Low formaldehyde emission level (E0).
Appraisal No.827 [2014]
4
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
4.2 BUILDERS
Ecoply Barrier installs quickly with two easy steps – fasten
the panels and tape the seams. Once completed, the
system provides moisture protection both during and after
construction.
Advantages:
• Immediate close-in of structure, allowing interior and exterior
work to be completed in parallel.
• Reduced builder liability; strong secondary line of defence and
solid material for sealing penetrations.
• Schedule your subcontractors sooner.
• No call backs for rips, tears or wrap that has blown off.
• Easy to work light material, simple and easy to install.
• Up to 180 day exposure during construction cycle. No holdups while the cladding has to be installed i.e. brick layers etc.
4 . 3 H O M E OW N E R S
ECOPLY® BARRIER ADVANTAGES
Ecoply® Barrier lets you say goodbye to flexible wall underlays
forever. Builders no longer have to worry about installing
traditional housewrap or building paper on a windy day or having
to return for re-work due to rips, tears or wrap that has blown
off the home. Ecoply Barrier can typically save up to 2-4* weeks
off the total house build time*, by allowing a faster building close
in, for an earlier interior start and a quicker overall build time.
An airtight building envelope means less airflow into and out of
the home. Since conditioned air is expensive air, homeowners
can take comfort in knowing that Ecoply Barrier will provide a
strong secondary line of defence against the elements.
Advantages:
• Get possession faster, builders building with Ecoply Barrier can
typically reduce up to 2-4* weeks off a typical house build*.
• Structurally rigid home.
* Timeframes and efficiencies are indicative only. Construction production gains will differ with respect to individual builder’s abilities
and other contributing circumstances outside the control of CHH Woodproducts.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
5
ECOPLY® BARRIER COMPONENTS
5.0 ECOPLY® BARRIER COMPONENTS
Table 1: Product Range
Description
Weight (kg/m2)
Thickness
Width
Length
Ecoply® Barrier – structural plywood with factory
applied proprietary coating to sheet surface and edges
Approx 4.0
7mm
1197mm
Sill Tape – one piece stretchable sill tape for window
and door sills
-
2 Rolls per Box
150mm, 200mm
Frame Sealing Tape – for a permanent seal of all
Ecoply® Barrier openings (Use in conjunction with
Sill Tape)
-
2 Rolls per Box
150mm
1 Roll per Box
200mm
Sealing Tape – for a permanent seal of all Ecoply
Barrier vertical joints
-
10 Rolls per Box
60mm
2440mm
2745mm
20m per roll
30m per roll
30m per roll
COMPONENTS NOT SUPPLIED BY CHH WOODPRODUCTS:
• PVC Horizontal Flashing: use Ecoply® Horizontal Jointer
(Product Code RDZF7) supplied by E2 Flashing Solutions.
• Bracing Hold-Down Connectors: GIB HandiBrac® hold-down
brackets manufactured by MiTek® complete with mechanical
fastener with a minimum 15kN uplift capacity for concrete
floors and 150mm x 12mm galvanised coach screw for timber
floors.
• Fasteners.
5 . 1 TA P E S
The Ecoply Barrier – Sill Tape, Frame Sealing Tape and Sealing
Tape transform our sheathing plywood panels into a seamless
protective barrier for your construction project. All tapes are
proven to deliver an airtight and watertight seal. The Ecoply
Barrier ‘rigid air barrier system’ tapes save you time and money
on the job; and you can leave the site with confidence it will
perform.
Table 2: Tapes
Technical Data
Sealing Tape
Sill Tape
Frame Sealing Tape
Description
For a permanent seal of Ecoply
Barrier vertical joints
One piece stretchable sill tape, for
use on all window / door frame sills
For a permanent seal of all Ecoply
Barrier openings (Except window /
door frame sill)
Carrier Paper
Special fleece made from PP
Butyl rubber with PE film
Special fleece made from PP
Width / Length
60mm x 30m
150mm x 20m
200mm x 20m
150mm x 30m (box of 2)
200mm x 30m (box of 1)
Release Paper
Siliconized Paper
Siliconized Foil
(Split 90mm / 60mm)
(Split 140mm / 60mm)
Siliconized Paper
(Split 90mm / 60mm)
(Split 140mm / 60mm)
Temperature Resistance
Long Term -40°C to +90°C
Long Term -40°C to +90°C
Long Term -40°C to +90°C
Processing Temperature
From -10°C
From -10°C
From -10°C
Colour
Grey
Black
Grey
Storage: All sealing tapes must be stored in clean dry conditions and not in an area with direct sunlight.
5 . 2 COAT I N G - PA N E LS
The film formulation provides resistance to the effects of
exposure to weathering including sun and moisture, typically
experienced during the construction and normal service life of
cavity substrate systems. The factory applied powder coat film is
specifically formulated for use on Ecoply Barrier plywood panels.
• The film, formed by the powder coating process, helps resist
moisture penetration.
• The edges of Ecoply Barrier sheets are coated and sealed.
6
• High film build (60–80 microns), delivers a smoother and more
durable sheet surface allowing easier moisture drainage in
cavity construction applications.
• Sealer coating contains low Volatile Organic Compounds (VOC).
• The beige coloured sealer coating can be exposed to the
external environment for up to 180 days prior to cladding
installation.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
6.0 DESIGN CONSIDERATIONS
Sustainability
Design responsibility lies with the building owner and the
professionals that they engage. The Specifier for the project
must ensure that the products and details in the specification
are appropriate for the intended application and that additional
detailing is provided for specific design or any areas that fall outside
the scope and specifications of this literature.
Ecoply Barrier is manufactured from radiata pine, a plantation
grown medium density softwood. It is grown on tree farms
which are tended and harvested to provide wood for plywood
manufacture. The crop is managed on a sustainable basis to yield
millable trees. Ecoply Barrier is available Forestry Stewardship
Council (SCS-COC-001316) certified upon request.
Preservative Treatment
Health & Safety
Ecoply Barrier is treated in accordance with AS/NZS 1604.3 with
H3.2 CCA (Copper Chrome Arsenate) water borne treatment.
H3.2 CCA treated plywood in accordance with AS/NZS 1604.3 is
described as suitable for: “outside above ground applications” and
periodic moderate wetting.
Ecoply Barrier should be handled in accordance with the Safety
Data Sheet (SDS) for H3.2 CCA treated Ecoply Barrier. Always
wear safety glasses or non-fogging goggles when working with
Ecoply Barrier. If wood dust exposure is not controlled when
machining (sawing, drilling etc.) a P1 or P2 replaceable filter
or disposable face piece respirator should be worn. Wear
comfortable work gloves to avoid skin irritation and the risk of
splinters. Wash hands with mild soap and water after handling
panels.
®
Cut Sheets
Ecoply Barrier is envelope preservative treated. If a sheet end is
cut, place the cut end to the top. Always have a sealed sheet end
at the bottom to minimise potential moisture ingress into the
panel. All other cuts and penetrations must be covered by Ecoply
Barrier Sealing Tape and installed in accordance with the Ecoply
Barrier literature. When installed as per the above requirements,
cut edges and penetrations are not required to be retreated with
a brush on preservative treatment however, if desired, CHH
Woodproducts recommends the use of Holdfast® Metalex®
Concentrated Timber Preservative Green (Holdfast® Metalex®
Green).
Dimensional Sheet Change
Detailing and construction using Ecoply Barrier must allow for
natural movement in line with normal cycles of moisture change
occurring in the environment. The total expansion both along and
across a 2440 x 1197mm panel can be in the order of 1.5mm to
3mm depending on the environment. Detailing and construction
practice should take the potential for natural movement into
consideration. Ecoply Barrier sheets may exhibit slight sheet
bowing across the sheet resulting from the preservative treatment
and surface coating processes. This is to be expected and will not
affect the product’s structural performance or weathertightness
when installed as per the specifications.
Storage & Handling
Ecoply Barrier panels and tapes must be stored and handled with
care to maintain good condition prior to installation:
• The storage area must be protected from sun, rain and
wind that would otherwise bring about rapid changes in
temperature and humidity.
• Support for the sheets must be provided at both ends and
middle to avoid distortion. Ensure bearers in packs above are
aligned over bearers below to avoid inducing curves in sheets.
• The stack must be kept dry and clear of ground contact, and
placed so that it will not be exposed to mechanical damage.
• The sheets must be stacked flat, NOT on edge.
ECOPLY® BARRIER DESIGN CONSIDERATIONS
Responsibility
Maintenance
Ecoply Barrier will not normally require maintenance. However,
if damage occurs to the cladding or lining protecting the Ecoply
Barrier or to the Ecoply Barrier itself, repairs or replacement
should be carried out to ensure the integrity of the rigid air barrier.
Small perforations in the panels can be covered by the Frame
Sealing Tape or Sealing Tape (200mm, 150mm or 60mm Width,
Grey Colour).
Formaldehyde
Formaldehyde occurs naturally in the environment and is emitted
by processes such as combustion, decay and naturally by all timber
species. Ecoply Barrier meets the lowest formaldehyde emission
classification (E0 – less than 0.5mg/ litre).
Wind Loadings
Ecoply Barrier meets the NZBC requirements for rigid underlays
as outlined in section 9.1.4, the performance requirements
of Table 23 of E2/ AS1, and has been tested for wind speed
exceeding Extra High wind zone as defined in NZS 3604. Testing
has been completed to assist in providing solutions for buildings
outside the scope of NZS 3604. Contact CHH Woodproducts
for further information.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
7
ECOPLY® BARRIER INSTALLATION
7.0 INSTALLATION
7 . 1 I N S TA L L AT I O N
Step 1 Framing:
Step 4 Sheet Layout:
Install the Ecoply® Barrier sheathing panels positioned with the
water resistant powder coat film facing outwards. The panels
must be installed with the long side of each panel orientated
vertically to the framing members.
When using Ecoply Barrier, flexible wall underlay is not required.
Ecoply Barrier has been BRANZ appraised and tested to
demonstrate product performance against the requirements of
Table 23 of Clause E2 / AS1 of NZBC. The sheets are jointed
keeping an expansion gap of 2-3mm maximum between the
plywood panels. Each plywood panel is 1197mm in width to allow
for standard 400mm or 600mm stud spacing.
All Ecoply Barrier sheet edges must be fully supported by being
fastened to framing:
• Studs must not exceed 600mm centres.
• Nogs must be provided at 1350mm centres maximum.
• The minimum framing width for fixing Ecoply Barrier is
45mm at sheet joints.
• Framing must be kept as dry as possible at all times.
• Do NOT glue to frame.
All timber framing sizes and set outs must comply with
NZS 3604 (or be specifically designed to NZS 3603:1993 –
Timber Structures Standard), with stud and nog centres and
timber widths required by this specification. Use kiln dried
framing such as Laserframe® in accordance with timber framing
manufacturers specification and treated in accordance with
NZBC Clause B2 Durability, Acceptable Solution (E2/AS1) or
Standards New Zealand 3602:2003 Timber and Wood based
products for use in building (NZS 3602).
Step 2 Fastener Durability:
Fasten the panels to the framing members. It is of particular
importance in coastal areas, areas subject to salt spray and other
corrosive environments that the correct fastener is verified prior
to installation.
Fasteners shall be a minimum of hot dip galvanised for all B and C
zones excluding sea spray zone D where stainless steel fasteners
are required. Where stainless steel is required, annular grooved
nails must be used.
Step 3 Fasteners:
Fastener heads should be flush with the panel surface. It is not
required to tape over over-driven fasteners unless the fastener
head completely penetrates the thickness of the face veneer.
Cladding fasteners must be increased in length by a minimum of
7mm to achieve the required fastener pull out loadings. (Ecoply
Barrier is 7mm thicker than building wrap).
Table 3: Fastener Type
Fixing Type
Minimum Nail Length
Hand Driven
50 x 2.8mm nails (flat head or round
head), hot dipped galvanised or better
Power Driven – Paslode
Pneumatic Cladding Coil
Nailer
Paslode Impulse 50 x 2.8mm hot dipped
galvanised or better, ring round head drive
B20557
• All sheet edges must be supported by the framing.
• Use fastener pattern unless otherwise specified (refer to the bracing
specifications in the Ecoply Specification and Installation Guide).
-- 150mm centres at sheet edges
-- 300mm centres within sheet body up to and including ‘Very
High’ wind zone or;
-- 150mm centres within sheet body in ‘Extra High’ wind zone
• Sheets must overhang the bottom plate by a minimum of
25mm over timber and concrete foundations (Refer to BAR005:
Overhang Clearances For Concrete Slab or Masonry) with a
maximum overhang of 40mm.
• For brick cladding rebates, in addition to the 25 – 40mm sheet
overhang, 40mm clearance must exist between the face of the
Ecoply Barrier sheet and the brick cladding in accordance with
E2/AS1 Section 9.2.6 Cavities (Refer to BAR005A: Brick Rebate
Overhang Clearance).
• For cantilevered floor joists, sheets must overhang a minimum
of 25mm, with claddings to extend a minimum of 50mm below
the lowest part of the timber framing in accordance with E2/AS1
Table 18 (Refer BAR005B: Timber Floor Overhang Clearance For
Cantilevered Joists).
• For timber sub-floor systems, sheets must overhang the bearer
a minimum of 25mm, with claddings to extend a minimum of
50mm below the lowest part of the timber framing in accordance
with E2/AS1 Table 18 (Refer BAR005C: Overhang Clearance for
Timber Sub-Floors).
Ground Clearances:
Minimum ground clearances must be maintained for the cladding
being installed in accordance with Clause E2/AS1 – Figure 65
and Table 18, and with NZS 3604 for timber floors. The adjacent
ground must slope away from the building in accordance with
NZBC requirements. Ecoply Barrier must not be installed where
product will remain in contact with non-draining water, damp,
or soil.
NOTE: Please refer to Step 2 Fastener Durability.
8
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
BAR005: Overhang Clearances For Concrete Slab or Masonry
40 mm maximum
25 mm minimum
Ecoply® Barrier
Damp proof course
6 mm gap
Concrete slab or masonry
ECOPLY® BARRIER INSTALLATION
Interior lining
BAR005A: Brick Rebate Overhang Clearance
Interior lining
40 mm maximum
25 mm minimum
Ecoply® Barrier
Damp proof course
6 mm gap
40 mm
70 mm
40 mm clear in accordance with
E2/AS1 Section 9.2.6 Cavities
Concrete slab or masonry
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
9
ECOPLY® BARRIER INSTALLATION
BAR005B: Timber Floor Overhang Clearance for Cantilevered Joists
Ecoply® Barrier
Cavity
Selected cladding
Boundary joist
Cavity base closure vent
50 mm
25 mm
100 mm cavity spacers
Cladding to extend 50 mm minimum
below lowest part of timber framing
in accordance with E2/AS1 Table 18
Foundation post / bearer
Vertical section
BAR005C: Timber Floor Overhang Clearance for Sub Floors
Ecoply® Barrier
Cavity
Selected cladding
Boundary joist
50 mm
25 mm
100 mm cavity spacers
Cavity base closure vent
Cladding to extend 50 mm minimum below
lowest part of timber framing in
accordance with E2/AS1 Table 18
Foundation post / bearer
Vertical section
10
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
7 . 2 I N S TA L L AT I O N – S H E E T J O I N S
ECOPLY® BARRIER INSTALLATION
Apply Ecoply® Barrier Sealing Tape after all sheathing panels are
fully fastened to wall framing members. Only designated Ecoply
Barrier Sealing Tape should be used. Ensure that each panel is
free of sawdust and dirt prior to taping. Ecoply Barrier Sealing
Tape requires pressure for a secure seal. Make sure the tape is
centred over the seam within +/- 20mm to provide adequate
coverage and that wrinkles in tape are minimal.
BAR006: Vertical Sheet Joints
45 mm
Stud
Vertical Sheet Joints:
Ecoply® Barrier
• Seal vertical joints by running Ecoply Barrier Sealing Tape over
the joints (60mm x 30m).
• Ecoply Barrier Sealing Tape must not be exposed to weathering
for more than 180 days prior to installation of the exterior
cladding system.
Ecoply Barrier Sealing Tape
Cavity batten (if required)
2 - 3 mm expansion gap
between sheets
Horizontal Sheet Joins (Three Options):
• Ecoply Barrier PVC horizontal ‘Z’ Flashing (Product Code
RDZF7) for horizontal sheet joints. Refer BAR007: Horizontal
Sheet Joints (PVC Z Flashing).
• ‘Z’ taped joint using Ecoply Barrier 150mm OR 200mm Frame Sealing Tape. Refer BAR007A: Horizontal Sheet Joints
(Tape Z Flashing).
• ‘Face’ seal joint using Ecoply Barrier 150mm OR 200mm Frame Sealing Tape. Refer to BAR007B: Face Sealed Horizontal Sheets Joins
at Mid-floor or BAR007C: Face Sealed Horizontal Sheet Joins at Nog.
Tape Splices and Joints:
• Whenever tape splices occur at a junction, create an overlapping splice of at least 50mm.
• Make sure to apply adequate pressure for a secure bond between the plywood panel and the tape.
• Take special care to remove any wrinkles or voids at splice areas.
BAR007: Horizontal Sheet Joints (PVC Z Flashing)
BAR007A: Horizontal Sheet Joints (Tape Z Flashing)
Ecoply® Barrier
Ecoply® Barrier
scale 1:
Vertical sheet joints
0
15 mm expansion gap
15 mm expansion gap
35 mm
50
65 mm
42 mm
60 mm
Ecoply Barrier
horizontal "Z" flashing
Ecoply Barrier 150 mm
Frame Sealing Tape
Floor joist
Floor joist
Wall framing
Wall framing
Internal wall lining
Internal wall lining
Vertical section
Vertical section
The Ecoply® Barrier PVC Horizontal ‘Z’ Flashing is manufactured by E2 Flashing Solutions. Contact E2 Flashing Solutions on (03) 358 5775 or visit
www.e2flashingsolutions.co.nz for further information.
COPLY. BAR007A Horizontal Sheet Joint
scale 1
scale 1:5
®
0
100
| 50
CHH WOODPRODUCTS
ECOPLY
BARRIER | 200
0800 326 759 | www.chhwoodproducts.co.nz 0
50
100
11
ECOPLY® BARRIER INSTALLATION
BAR007B: Face Sealed Horizontal Sheet Joints at Mid-Floor
Ecoply® Barrier
20 mm cavity
Kiln dried or engineered timber
Ecoply Barrier 150 mm
Frame Sealing Tape
5 mm expansion gap
60 mm minimum
Wall framing
Internal wall lining
Vertical section
BAR007C: Face Sealed Horizontal Sheet Joints at Nog
Ecoply® Barrier
20 mm cavity
Ecoply Barrier 150 mm
Frame Sealing Tape
5 mm expansion gap
60 mm minimum
Internal wall lining
Wall framing
Vertical section
12
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
Internal and External Corners:
BAR008: External Corner
Ecoply® Barrier
Interior lining
Cavity batten (if required)
ECOPLY® BARRIER INSTALLATION
• Corners must be sealed with Ecoply® Barrier Sealing Tape
(60mm Grey Colour). (Refer to BAR008 and BAR009: External and Internal Corner).
Ecoply Barrier
Ecoply Barrier Sealing
Tape to corner
BAR009: Internal Corner
Interior lining
Ecoply® Barrier
Cavity batten (if required)
Ecoply Barrier Sealing
Tape to corner
Interior lining
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
13
ECOPLY® BARRIER INSTALLATION
Corner Junctions to Horizontal Joints
• Corners must be sealed with Ecoply® Barrier Sealing Tape
(60mm Grey Colour).
• PVC Horizontal Z Flashings must be butted together, 60mm
Ecoply Barrier Sealing Tape must overlap the PVC butt join
entirely over the face and up stand of the PVC Flashing to form
a weathertight joint where horizontal Flashings meet.
• Horizontal joins may also be completed using Ecoply
Barrier Frame Sealing Tapes.
BAR010: External Corner to Horizontal Joint
Laserframe® framing studs
Floor Joist
Ecoply® Sealing Tape
extends under the
horizontal ‘Z’ Flashing or
the Ecoply Barrier 150 mm
Frame Sealing Tape on to
the framing
Horizontal Sheet Join
Expansion gap
PVC Horizontal
Jointer Product Code
RDZF7 to BAR007
or Ecoply Barrier
150 mm Frame
Sealing ‘Z’ Tape to
BAR007A, or Face
Sealed BAR007B or
BAR007C
Ecoply® Barrier Sealing Tape
applied to external corner
14
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
Corner Profile Sealing
Tape applied to Ecoply
Barrier above and placed
over ‘Z’ Flashing at
corner junction OR
Ecoply Barrier 150 mm
Frame Sealing Tape
7 . 3 I N S TA L L AT I O N - S I L L TA P E
Take special care to avoid any wrinkles or voids at corner
junctions, Ecoply Barrier Sill Tape requires pressure for a
secure seal.
Horizontal Sill Flashing Detail:
• Cut the Ecoply Barrier Sill Tape 200mm longer than the
horizontal window/door bottom trimmer.
• Ensure that the framing is free of sawdust and dirt prior
to taping.
• Apply the Ecoply Barrier Sill Tape to cover the bottom of the
opening, overhanging onto the Ecoply Barrier by at least 50mm
and extending 100mm up trimmer stud.
• Carefully bend the Ecoply Barrier Sill Tape to mould into the
corners providing a tight seal.
NOTE: Door openings are to be treated similarly to window openings.
The bottom trimmer may be either a timber or concrete floor.
ECOPLY® BARRIER INSTALLATION
Apply Ecoply® Barrier Sill Tape to the horizontal trimmer
section of the window or door opening. The exposed
timber framing on the sill of the window opening must be
totally covered with the Ecoply Barrier Sill Tape (150mm
or 200mm Black Colour) – one continuous piece. The tape
must be sealed over the face of the Ecoply Barrier.
BAR012: Window Penetration Sill Tape Installation
Seal vertical joints
by applying Ecoply®
Barrier Sealing Tape
over the joints
Lintel
Trimmer Stud
100 mm minimum
turn-up to Ecoply Barrier Sill Tape
Bottom
Trimmer
Ecoply Barrier
Sill Tape turned
out 50 mm
minimum over
plywood sheathing
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
15
ECOPLY® BARRIER INSTALLATION
7 . 4 I N S TA L L AT I O N - F R A M E S E A L I N G TA P E
Apply Ecoply® Barrier Frame Sealing Tape to the vertical
trimmer stud and lintel of the window or door opening.
The exposed timber framing must be covered with the
Ecoply Barrier Frame Sealing Tape (150mm / 200mm Grey
Colour). The tape is sealed over the face of the Ecoply
Barrier panel.
BAR013: Window Penetration Sill Tape Installation
Take special care to remove any wrinkles or voids at corner
junctions, Ecoply Barrier Frame Sealing Tape requires
pressure for a secure seal.
Ecoply® Barrier
Frame Sealing Tape
(150 mm / 200 mm x 30 m)
Vertical Jamb Detail:
• Cut the Ecoply Barrier Frame Sealing Tape 100mm longer
than the vertical opening size.
• Ensure that the trimmer stud is free of sawdust and dirt
prior to taping.
• Apply the Frame Sealing Tape to cover the entire
trimmers’ opening. The tape should extend a minimum
of 100mm around the corner at the head of the window
framing, and over-lap the Sill Tape on the trimmer stud by
a minimum of 50mm.
• Carefully slit the tape from the corner to get a smooth
adhesion to the plywood sheathing panel. Bend the Ecoply
Barrier Frame Sealing Tape to mould into the corners
providing a tight seal.
• Cut and apply a small 100mm strip to reinforce the corner
using Ecoply Barrier 150mm Frame Sealing Tape.
BAR014: Window Penetration Frame Sealing Tape
Installation with Head Flashing
Horizontal Head Detail:
• Once both trimmer studs are installed, cut the Frame Sealing
Tape for the horizontal head trimmer and Flashing to suit.
Make sure to over-lap the existing tape from the trimmer by
at least 50mm (Do not extend tape past the corner).
• Specific installation requirements pertaining to window
and door systems should be sought from the joinery
manufacturer.
NOTE: Door frames are to be treated similarly to window openings.
16
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
Ecoply® Barrier
Frame Sealing Tape
over head Flashing
Extend Flashing
as required
20 mm minimum
past joinery
7 . 5 S E RV I C E P E N E T R AT I O N S
Service Penetrations in Bracing Elements
Small openings (e.g. power outlets) of 90 x 90mm or less maybe
placed no closer than 90mm to the edge of the braced element,
or waste pipe outlets of maximum 150mm diameter placed
at no closer than 150mm to the edge of the braced element.
Maximum one penetration per bracing panel.
BAR011: Penetration & Services
Ecoply® Barrier Sill Tape a
minimum cover of 100 mm
over the sheet surrounding
the penetration is required
Pipe minimum of
5º slope to the
outside
ECOPLY® BARRIER INSTALLATION
• Service penetrations must be sealed using a flexible Flashing
tape. Ecoply® Barrier Sill Tape (150mm or 200mm Black
Colour) is recommended for this purpose. (Refer to
BAR011: Penetration and Services).
• A minimum cover of 100mm over the sheet surrounding the
penetration is required.
• Use Ecoply Barrier Frame Sealing Tape to bandage around the
pipe (25mm minimum width).
Flexible tape bandage
minimum 25 mm
around the pipe
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
17
ECOPLY® BARRIER INSTALLATION
7 . 6 S T RU C T U R A L B R AC I N G
Ecoply Barrier is designed to comply with the New Zealand
Building Code (NZBC).
Structure
NZS 3604 Timber Framed Buildings is listed as an Acceptable
Solution under Clause 3.0 Timber in Acceptable Solution B1/AS1
Structure. CHH Woodproducts have developed a range of wall
bracing elements tested using P21 testing methods referenced in
NZS 3604.
Demand may be calculated by following section 5, Bracing
Design of NZS 3604 or using the GIB EzyBrace® software,
downloadable from www.gib.co.nz.
EPB bracing systems properties can be easily loaded into the
EzyBrace software by way of a software patch downloadable
from www.chhwoodproducts.co.nz together with loading
instructions.
Specific Design
Ecoply® Barrier structural plywood panels are manufactured to
AS/NZS 2269, and is suitable for design and use in earthquake
and wind bracing systems constructed in accordance with
NZS 3603 and AS/NZS 1170.
Structural plywood to AS/NZS 2269 is the only sheet brace
material with properties defined in a published New Zealand
timber design code, NZS 3603 Timber Structures, and so can
be designed in compliance with Verification Method B1/VM1
under Clause 6.0 Timber for use in buildings over three storeys
in height.
Timber Floors
When carrying out a bracing design for buildings with timber
floor structures, the maximum bracing rating that can be
accounted for when summing up the bracing units is 120BUs/m.
This does not exclude the installation of bracing elements that
are rated higher than 120BUs/m, however the extra bracing
capacity can not be accounted for in the bracing design.
Durability
Ecoply Barrier plywood panels are manufactured to meet the
requirements of NZS 3602 Timber and Wood based products
for use in Buildings. If the product is used, handled and installed
in accordance with CHH Woodproducts product literature it will
meet the durability requirements of the NZBC.
Adjustments for Wall Height
Adjustment of bracing capacity of walls of different heights and
walls with sloping top plates shall be obtained by the following
method:
(a) For wall bracing elements of heights other than 2.4m, the
bracing rating determined by test or from table below should
be multiplied by 2.4 ÷ element height in metres, except that
elements less than 2.4m high shall be rated as if they are
2.4m high.
(b) Walls of varying heights, should have their bracing capacity
adjusted in accordance with section 5 of NZS 3604 using the
average height.
(c) Wall heights <1.5m are to be subject to Specific Engineer
Design (SED).
Joining Panels for Walls Higher than Maximum
Sheet Length
Ecoply Barrier bracing panels must be fixed from top plate to
bottom plate. For wall heights over 2.44m, Ecoply Barrier is
available in 2.745m sheet lengths. Alternatively, a part sheet
can be installed above a full sheet, in accordance with section
7.2 Installation - Sheet Joins (Three Options for Horizontal
Sheet Joins) on a single row of common nogs with each sheet/
part sheet independently nailed off as per the nail spacing in the
Ecoply Barrier bracing specifications (e.g. 2.4m x 1.2m sheet with
a 0.3 m x 1.2 m part sheet above it to give a 2.7m x 1.2m bracing
element).
Specific design of floor and sub-floor framing is required for
elements rated higher than 120BUs/m.
Table 4: Summary P21 Ratings for 2.4m High Ecoply ® Barrier Wall Elements
Specification No.
Minimum
Wall Length
BUs/m
Wind
BUs/m
Earthquake
80
95
95
105
120
135
105
115
60
60
No additional
fastening 1
60
65
65
70
2.4m
80
90
0.4m
Yes
GIB HandiBrac®
100
115
150
150
Lining Requirements
Hold-Down
Ecoply Barrier one side
Yes
GIB HandiBrac®
0.4m
EPB1
0.6m
®
1.2m
EP2
0.6m
Ecoply Barrier or Ecoply each side
Yes
GIB HandiBrac®
0.4m
EPBS
0.6m
1.2m
EPBG
1
18
1.2m
Ecoply Barrier one side
Ecoply Barrier one side and
10mm GIB® Standard plasterboard other side
As per NZS 3604: 2011. No specific additional fastening required.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
7 . 7 E CO P LY ® BA R R I E R B R AC I N G S P E C I F I C AT I O N – E P B 1
Specification No.
Minimum
Wall Length
Lining Requirements
Hold-Down
Ecoply® Barrier one side
Yes
GIB HandiBrac®
0.4m
EPB1
0.6m
1.2m
BUs/m
Wind
BUs/m
Earthquake
80
95
95
105
120
135
Framing
Fastening Centres
Wall framing must comply with:
Fasteners are placed at 150mm centres around the perimeter
of each sheet and 300mm centres to intermediate studs or
150mm centres in Extra High wind zones. Where more than
one sheet forms the brace element each sheet must be nailed off
independently.
• NZBC B1 - Structure: AS1 Clause 3 Timber (NZS 3604).
• NZBC B2 - Durability: AS1 Clause 3.2 Timber (NZS 3602).
Framing dimensions and height are as determined by the
NZS 3604 stud and top plate tables for load bearing and non
load bearing walls. Kiln dried verified structural grade timber
must be used. Machine stress graded timber of minimum SG8,
such as Laserframe®, is recommended.
Bottom Plate Fixing
Use GIB HandiBrac® hold-down connections at each end of the
bracing element. Refer to manufacturer installation instructions
supplied with the connectors for correct installation instructions
and bolt types to be used for either concrete or timber floors.
Within the length of the bracing element, bottom plates are
fixed in accordance with the requirements of NZS 3604.
GIB HandiBrac®
Hold-Down
Lining
ECOPLY® BARRIER INSTALLATION
Table 5: Sided Structural Plywood Brace
7mm Ecoply® Barrier fixed
with 50 x 2.8mm nails at
150mm centres to perimeter
of each sheet or part sheet
within the bracing element at no
less than 7mm from sheet edge
and at 300mm centres to
intermediate studs or 150mm
centres in Extra High wind zones.
One layer of 7mm Ecoply® Barrier vertically fixed directly
to framing. If part sheets are used, ensure nailing at required
centres is carried out around the perimeter of each sheet or
part sheet. A 2-3mm expansion gap should be left
between sheets.
Fastening Ecoply® Barrier Panels
Fasteners
Fasten with 50 x 2.8mm galvanised or stainless steel flat head
nails direct fix. Place fasteners no less than 7mm from sheet
edges. Screws cannot be used. Power driven nails are suitable.
Do not overdrive, nails must be full round head.
In certain circumstances stainless steel fasteners may be
required. Refer to section 7.1 in the Ecoply Barrier Specification
and Installation Guide for these circumstances and further
fastener selection advice. Where stainless steel nails are
required, annular grooved nails must be used.
JULY 2017
Ecoply® Bracing Systems are designed to meet the requirements of the New Zealand Building Code and have been tested and analysed using the P21 method referenced
in NZS 3604:2011 listed as an acceptable solution B1/AS1 Structure. Testing was carried out using Ecoply Barrier manufactured by CHH Woodproducts and SG8 timber
framing and GIB® products manufactured by Winstone Wallboards Ltd. Substituting materials may compromise performance of the system. GIB® and GIB HandiBrac® are
registered trade marks of Fletcher Building Holdings Ltd.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
19
ECOPLY® BARRIER INSTALLATION
7 . 8 E CO P LY ® BA R R I E R B R AC I N G S P E C I F I C AT I O N – E P 2
Table 6: Sided Structural Plywood Brace
Specification No.
Minimum
Wall Length
Lining Requirements
Hold-Down
BUs/m
Wind
BUs/m
Earthquake
EP2_0.6
0.6m
Ecoply® Barrier or Ecoply each side
Yes
GIB HandiBrac®
105
115
Framing
Fastening Centres
Wall framing must comply with:
Fasteners are placed at 150mm centres around the perimeter
of each sheet and 300mm centres to intermediate studs or
150mm centres in Extra High wind zones. Where more than
one sheet forms the brace element each sheet must be nailed
off independently.
• NZBC B1 - Structure: AS1 Clause 3 Timber (NZS 3604).
• NZBC B2 - Durability: AS1 Clause 3.2 Timber (NZS 3602).
Framing dimensions and height are as determined by the
NZS 3604 stud and top plate tables for load bearing and non
load bearing walls. Kiln dried verified structural grade timber
must be used. Machine stress graded timber, such as Laserframe®
of SG8 stress grade minimum, is recommended.
Bottom Plate Fixing
Use GIB HandiBrac® hold-down connections at each end of the
bracing element. Refer to manufacturer installation instructions
supplied with the connectors for correct installation instructions
and bolt types to be used for either concrete or timber floors.
Within the length of the bracing element, bottom plates are
fixed in accordance with the requirements of NZS 3604.
Lining Each Side
GIB HandiBrac®
Hold-Down
Ecoply® fixed with 50 x 2.8mm
nails at 150mm centres to
perimeter of each sheet at no
less than 7mm or 3 fastener
diameters from sheet edge and
at 300mm centres to
intermediate studs to both
sides or 150mm centres in
Extra High wind zones.
One layer of 7mm, 9mm or 12mm Ecoply® plywood or Ecoply
Barrier vertically fixed directly to framing. If part sheets are
used, ensure nailing at required centres is carried out around the
perimeter of each sheet or part sheet. A 2-3mm expansion gap
should be left between sheets.
Fastening the Ecoply® Barrier
Fasteners
Fasten with 50 x 2.8mm galvanised or stainless steel flat head
nails direct fix. Place fasteners no less than 7mm from sheet
edges. Screws cannot be used. Power driven nails are suitable.
Do not overdrive, nails must be full round head.
In certain circumstances stainless steel fasteners may be
required. Refer to section 7.1 of the Ecoply Barrier Specification
and Installation Guide for these circumstances and further
fastener selection advice. Where stainless steel nails are
required, annular grooved nails must be used.
20
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
JULY 2017
Ecoply® Bracing Systems are designed to meet the requirements of the New Zealand Building Code and have been tested and analysed using the P21 method referenced
in NZS 3604:2011 listed as an acceptable solution B1/AS1 Structure. Testing was carried out using Ecoply manufactured by CHH Woodproducts and SG8 timber framing,
and GIB® products manufactured by Winstone Wallboards Ltd. Substituting materials may compromise performance of the system. GIB® and GIB HandiBrac® are
registered trade marks of Fletcher Building Holdings Ltd.
7 . 9 E CO P LY ® BA R R I E R B R AC I N G S P E C I F I C AT I O N – E P B S
Specification No.
Minimum
Wall Length
Lining Requirements
Hold-Down
0.4m
0.6m
EPBS
1.2m
No additional
fastening 1
Ecoply® Barrier one side
2.4m
1
BUs/m
Wind
BUs/m
Earthquake
60
60
60
65
65
70
80
90
As per NZS 3604: 2011. No specific additional fastening required.
Framing
Fastening Centres
Wall framing must comply with:
Fasteners are placed at 150mm centres around the perimeter
of each sheet and 300mm centres to intermediate studs or
150mm centres in Extra High wind zones. Where more than
one sheet forms the brace element each sheet must be nailed off
• NZBC B1 - Structure: AS1 Clause 3 Timber (NZS 3604).
• NZBC B2 - Durability: AS1 Clause 3.2 Timber (NZS 3602).
Framing dimensions and height are as determined by the
NZS 3604 stud and top plate tables for load bearing and non
load bearing walls. Kiln dried verified structural grade timber
must be used. Machine stress graded timber of minimum SG8,
such as Laserframe®, is recommended.
Bottom Plate Fixing
Bottom plates are fixed in accordance with the requirements of
NZS 3604. No specific additional fastening required.
Lining
independently.
ECOPLY® BARRIER INSTALLATION
Table 7: Single Sided Structural Plywood Brace No Additional Hold-Down
7mm Ecoply® Barrier fixed
with 50 x 2.8mm nails at 150mm
centres to perimeter of each
sheet or part sheet within the
bracing element at no less than
7mm from sheet edge and at
300mm centres to intermediate
studs or 150mm centres in
Extra High wind zones.
One layer of 7mm Ecoply® Barrier vertically fixed directly
to framing. If part sheets are used, ensure nailing at required
centres is carried out around the perimeter of each sheet or
part sheet. A 2-3mm expansion gap should be left
between sheets.
Fastening the Ecoply® Barrier
Bottom plate fixed in accordance with
the requirements of NZS 3604.
Fasteners
Fasten with 50 x 2.8mm galvanised or stainless steel flat head
nails direct fix. Place fasteners no less than 7mm from sheet
edges. Screws cannot be used. Power driven nails are suitable.
Do not overdrive, nails must be full round head.
In certain circumstances stainless steel fasteners may be
required. Refer to section 7.1 in the Ecoply Barrier Specification
and Installation Guide for these circumstances and further
fastener selection advice. Where stainless steel nails are
required, annular grooved nails must be used.
JULY 2017
Ecoply® Bracing Systems are designed to meet the requirements of the New Zealand Building Code and have been tested and analysed using the P21 method referenced
in NZS 3604:2011 listed as an acceptable solution B1/AS1 Structure. Testing was carried out using Ecoply Barrier manufactured by CHH Woodproducts and SG8 timber
framing and GIB® products manufactured by Winstone Wallboards Ltd. Substituting materials may compromise performance of the system. GIB® and GIB HandiBrac® are
registered trade marks of Fletcher Building Holdings Ltd.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
21
ECOPLY® BARRIER INSTALLATION
7 . 1 0 E CO P LY ® BA R R I E R B R AC I N G S P E C I F I C AT I O N – E P B G
Table 8: Ecoply ® Barrier Structural Brace To One Side with 10mm GIB ® To The Other
Specification No.
Minimum
Wall Length
0.4m
EPBG
1.2m
Lining Requirements
Hold-Down
Ecoply® Barrier one side and
10mm GIB® Standard plasterboard other side
Yes
GIB HandiBrac®
BUs/m
Wind
BUs/m
Earthquake
100
115
150
150
Framing
Fastening Centres
Wall framing must comply with:
Fasteners are placed at 150mm centres around the perimeter
of each sheet and 300mm centres to intermediate or 150mm
centres in Extra High wind zones. Where more than one
sheet forms the brace element each sheet must be nailed off
independently.
• NZBC B1 - Structure: AS1 Clause 3 Timber (NZS 3604).
• NZBC B2 - Durability: AS1 Clause 3.2 Timber (NZS 3602).
Framing dimensions and height are as determined by the
NZS 3604 stud and top plate tables for load bearing and
non load bearing walls. Kiln dried verified structural grade
timber must be used. Machine stress graded timber, such as
Laserframe®, is recommended.
7mm Ecoply® Barrier fixed
with 50 x 2.8mm nails at
150mm centres to perimeter
of each sheet or part sheet
within the bracing element at no
less than 7mm from sheet edge
and at 300mm centres to
intermediate studs or 150mm
centres in Extra High wind zones.
Bottom Plate Fixing
Use GIB HandiBrac® hold-down connections at each end of the
bracing element. Refer to manufacturer installation instructions
supplied with the connectors for correct installation instructions
and bolt types to be used for either concrete or timber floors.
Within the length of the bracing element, bottom plates are
fixed in accordance with the requirements of NZS 3604.
Lining
Side 1: One layer of 7mm Ecoply® Barrier vertically fixed
directly to framing. If part sheets are used, ensure nailing
at required centres is carried out around the perimeter
of each sheet or part sheet. A 2-3mm expansion gap
should be left between sheets.
Side 2: One layer of 10 or 13mm GIB® Standard plasterboard
vertically or horizontally fixed. Sheet joints are
touch fitted and fastener heads and joints stopped in
accordance with the GIB® Site Guide.
Fastening the Ecoply® Barrier
GIB HandiBrac®
Hold-Down
Fastening the GIB® Plasterboard
Fasteners
32mm x 6g GIB Grabber® Screws or 35mm GIB® Nails
Fastening centres
Fasten 50, 100, 150, 225 and 300mm from each corner and
150mm thereafter around the perimeter of the bracing
element. For vertical fixing place fasteners at 300mm centres
at intermediate sheet joints. For horizontal fixing place single
fasteners in the tapered edge where sheets cross studs.
Place fasteners 12mm from paper bound edges and 18mm from
cut sheet edges. GIB® plasterboard must be treated in every
respect in accordance with relevant GIB® literature.
Fasteners
7mm Ecoply® Barrier.
Fasten with 50 x 2.8mm galvanised or stainless steel flat head
nails direct fix. Place fasteners no less than 7mm from sheet
edges. Screws cannot be used. Power driven nails are suitable.
Do not overdrive, nails must be full round head.
In certain circumstances stainless steel fasteners may be
required. Refer to section 7.1 of the Ecoply Barrier Specification
and Installation Guide for these circumstances and further
fastener selection advice. Where stainless steel nails are
required, annular grooved nails must be used.
Daubs of GIBFix® adhesive at 300mm
centres to intermediate studs.
GIB® Standard plasterboard.
All four corners of a GIB® plasterboard bracing
element must be fastened at 50mm,100mm,
150mm, 225mm and 300mm from the edge
of the sheet.
Hold-down and
special fastener
layout required.
Bracing element perimeter is then fastened
at150mm centres.
Fasteners must be no closer than 12mm from
the paper enclosed edge and no closer than
18mm from sheet ends or cut edges of sheets.
22
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
JULY 2017
Ecoply® Bracing Systems are designed to meet the requirements of the New Zealand Building Code and have been tested and analysed using the P21 method referenced
in NZS 3604:2011 listed as an acceptable solution B1/AS1 Structure. Testing was carried out using Ecoply Barrier manufactured by CHH Woodproducts and SG8 timber
framing and GIB® products manufactured by Winstone Wallboards Ltd. Substituting materials may compromise performance of the system. GIB® and GIB HandiBrac® are
registered trade marks of Fletcher Building Holdings Ltd.
7 . 1 1 G I B H A N D I B R AC ® - R E CO M M E N D E D I N S TA L L AT I O N M E T H O D
• The GIB HandiBrac® registered design provides for quick and
easy installation.
• The GIB HandiBrac® provides a flush surface for the wall linings
because it is fitted inside the framing. There is no need to check
in the framing as recommended with conventional straps.
Concrete Floor
• The GIB HandiBrac® is suitable for both new and retrofit
construction.
• The design also allows for installation and inspection at any
stage prior to fitting internal linings.
Timber Floor
External Walls
Internal Walls
External Walls
Internal Walls
Position GIB HandiBrac® as close as
practicable to the internal edge of
the bottom plate.
Position GIB HandiBrac® at the
stud/ plate junction.
Position GIB HandiBrac® in the
centre of the perimeter joist or
bearer.
Position GIB HandiBrac® in the
centre of the floor joist or full depth
solid block.
Hold-down Fastener Requirements
Hold-down Fastener Requirements
A mechanical fastening with a minimum characteristic uplift capacity
of 15kN or screw bolt supplied with the bracket.
M12 x 150mm galvanised coach screw or screw bolt supplied with the
bracket.
ECOPLY® BARRIER INSTALLATION
Developed in conjunction with MiTek®, the GIB HandiBrac® has
been tested for use as a hold-down in all EPB bracing elements.
Reproduced with the permission of Winstone Wallboards Ltd
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
23
ECOPLY® BARRIER INSTALLATION
7 . 1 2 TO P P L AT E H O L D - D OW N CO N N E C T I O N S
Additional nailing of the Ecoply® Barrier to the top and bottom
plates in accordance with the details shown in Figure 1 and
described below will provide sufficient top plate hold-down
capacity to comply with a Type B fixing or 4.7kN uplift capacity
as listed in Table 8.18, NZS 3604.
Figure 1: Top Plate Hold-Downs Connections using
Ecoply® Barrier
75 mm
20 mm
Fastening
Nails must be 50mm x 2.8mm flat head hot dip galvanised or
stainless steel as described in the Ecoply Barrier Specification
and Installation Guide for Fastener Durability (Section 7.1).
Nailing to the top plate is at 75mm centres and 20mm from
the sheet edge.
The remainder of the sheet perimeter is fastened at
150mm centres no less than 7mm from the sheet edge
and 300mm at intermediate studs (or 150mm centres
for Extra High wind zones) as with standard nailing for
Ecoply Barrier.
Standard nailing of the Ecoply Barrier to the top plate
in accordance with the Ecoply Barrier literature will provide a
top plate hold-down capacity that exceeds a Type A
fixing or 0.7kN uplift capacity as listed in Table 8.18,
NZS 3604.
20 mm
150 mm
Horizontal Sheet Joints and Top Plate Hold-Down
Where horizontal sheet jointing is required and top plate holddown connections are completed using Ecoply Barrier, nailing
to the noggin at 75mm centres and 20mm from the sheet
edge is also required at the sheet joins. Refer Figure 1B Top
Plate Hold-Downs and Horizontal Sheet Joins.
Figure 1B: Top Plate Hold-Downs and Horizontal Sheet Joints
600 mm
600 mm
600 mm
20 mm
300 minimum
Framing Centres
600 mm
Nails at 75 mm centres to
top plate and horizontal sheet
join over common nog
Common nog 90x45mm on edge at
sheet join (For horizontal sheet join
options, see section 7.2)
1350 mm
Nails at 300 mm centres to
intermediate studs and nogs
except in Extra High wind zones
where 150 mm centres to
intermediate studs is required
Nails at 150 mm centres to all
sides of sheet perimeter except
where noted as 75 mm
20 mm
50 mm minimum sheet overhang
24
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
7 . 1 3 B R AC I N G L E N G T H S
Ecoply® Barrier bracing elements can be used when the overall
bracing element length is >400mm.
The length and capacity of an EPB1, EPBG or an EP2 type
element is not only determined by the plywood, but also
the placement of the GIB HandiBrac® hold-down fixing. The
GIB HandiBrac® must be installed to a continuous stud at the
perimeter of the bracing element, refer to Figure 1C: Framing/
Handibrac installation, 1D: Bracing Panel Installation, 1E: Bracing
Panel Installation – long and 1F: Bracing Panel Installation at Lintel.
Note: If used for Bracing purposes GIB HandiBrac® should not
form part of lintel tie down solution.
Bracing Panel and Hold-down Location at Lintels and 90°
Wall Junctions such as Garage Door Openings.
Ecoply Barrier bracing panels can be installed up to lintels
and 90° wall junctions such as garage door openings where
Figure 1C: Framing/HandiBrac Installation
the element length is > 400mm. See Figure 1E: Bracing Panel
Installation at Lintel for bracing element length, and correct GIB
Handibrac® location.
Note: Designers need to be aware of the framing requirements
and not try to specify bracing elements based on length only.
Framing requirements may mean bracing lengths are not
practically achievable as designed and tested and developed due
to framing layout.
When lintels share jamb studs with bracing elements, alternate
hold-down will be required (the GIB HandiBrac® forming part of
the bracing solution must not form part of the lintel hold-down).
Length of EPBS Elements
The length of the EPBS element (requiring standard NZS 3604:2011
bottom plate connections) can be taken as full frame length
measure from the outside of the end stud to the opening face as
illustrated in Figure 1G: EPBS Bracing panel Installation – Long.
The length of the bracing element shall be >400mm.
Figure 1D: Bracing Panel Installation
ECOPLY® BARRIER INSTALLATION
Length of Ecoply® Barrier Bracing Elements (EPB1, EPBG
and EP2).
600 mm
maximum
Stud
Ecoply® Barrier
nail off in
accordance with
Ecoply Barrier
literature
Nog/dwang
GIB HandiBrac®
installed in
accordance with
manufacturer’s
literature
GIB HandiBrac®
installed in
accordance with
manufacturer’s
literature
Bracing element length
C
L
* Note:
C
L
Bracing element length
C
L
C
L
Bracing panel not shown for clarity
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
25
ECOPLY® BARRIER INSTALLATION
Figure 1E: Bracing Panel Installation - Long
600 mm
maximum
Stud
Nog/dwang
Ecoply® Barrier
nail off in
accordance with
Ecoply Barrier
literature
GIB HandiBrac®
installed in
accordance with
manufacturer’s
literature
Bracing element length
C
L
C
L
Figure 1F: Bracing Panel Installation at Lintel
600 mm
maximum
Lintel
90° wall
junction
Jamb studs
Stud
Nog/dwang
GIB HandiBrac® installed in accordance
with manufacturer’s literature
Bracing element length
C
L
Elevation
C
L
NOTE: If used for bracing purposes,
GIB HandiBrac should not form part
of Lintel tie down solution
Stud
GIB HandiBrac® installed in accordance
with manufacturer’s literature
Plan
26
Nail off Ecoply® Barrier in accordance
with Ecoply Barrier literature
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
Figure 1G: EPBS Bracing Panel Installation
Stud
Nog/dwang
Ecoply® Barrier
nail off in
accordance with
Ecoply Barrier
literature
Bottom plate
fixed in accordance
with the
requirements of
NZS 3604
Bracing element length
C
L
C
L
ECOPLY® BARRIER INSTALLATION
600 mm
maximum
7 . 1 4 L I N T E L T I E D OW N CO N N E C T I O N
Figure 2: Lintel Connection Detail (For Uplifts Not Exceeding 7.5kN) as Detailed in Clause 8.6.1.8 of NZS 3604
Sheet join at
opening edge
Top Plate
Lintel (typ.)
Minimum
300 mm
Ecoply Barrier
®
Stud Lamination Requirement
Minimum
2/3.15x90 mm FH
nails within lintel
clearance
Top Plate
140 mm
minimum depth
6/3.15x
90 mm nails
2/3.15x90 mm
nails below lintel
Number of Studs
Indicative Only
Trimming Stud
= Additional 2.8x50
mm FH nails between
existing 150 c/c
= 2.8x50 mm FH nails at
150 c/c as per Ecoply
Barrier Literature
3.15x90 mm nails
Trimmer to doubling
stud at 300 c/c (typ.)
Bottom Plate
Ecoply Barrier Fixing Detail
Top Plate
6/2.8x50 mm FH
nails to trimming
stud (opposite
Lintel Connection)
10/2.8x50 mm FH nails
through pre-bored Ø2.5
mm holes (evenly spaced
through depth of lintel)
18 mm
minimum
Doubling Stud
7 mm clear offset from
edge of plywood panel
Minimum 7.5kN
Hold-Down to Bracket
Manufacturers Detail
Sheet join at opening edge
Notes:
1. Observe minimum end and edge distances for fasteners to NZS3603.
2. Fastener Durability as per the Ecoply Barrier Specification and
Installation Guide (Section 7.1).
3. Not suitable for use with trimming studs checked out for lintels.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
27
Apron Flashings
Ecoply® Barrier panels must extend past apron Flashing and roofing and have Ecoply Barrier Frame Sealing Tape over an E2/AS1
compliant apron Flashing with minimum 60mm cover as detailed. Refer BAR015 Apron Flashing Junction.
BAR015: Apron Flashing Junction
Selected cladding
Cavity battens
Ecoply Barrier 150 mm frame sealing tape
60 mm
minimum
100 mm cavity spacers set to fall
35 mm
clearance
minimum cover
Ecoply® Barrier Panel
cladding 75 mm
ECOPLY® BARRIER INSTALLATION
7 . 1 5 I N S TA L L AT I O N – A P RO N & S A D D L E F L A S H I N G S
75 mm minimum upstand cavity base closure vent
strip. Position to give 15 mm drip edge to cladding
Roof over flashing. Refer to E2/ASI Table 7
for cover dimensions
Vertical section
28
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
Saddle Flashings
BAR016: Ecoply® Barrier Saddle Flashing
Selected cladding
Cavity
Ecoply® Barrier
Cavity spacers with 50 mm minimum air
gap on both sides. 5º minimum slope
(1:12) position to allow for other claddings
Ecoply Barrier 150 mm Frame Sealing Tape
12 minimum
ECOPLY® BARRIER INSTALLATION
Apply Ecoply® Barrier Frame Sealing Tape over an E2/AS1 compliant saddle Flashing with minimum 60mm cover as detailed. Where
required, Ecoply Barrier Frame Sealing Tape should be applied over the top of horizontal Flashings. Refer BAR016 Ecoply Barrier
Saddle Flashing.
Decking
Saddle flashing at each joist in accordance
with E2/AS1 Figure 16
Ecoply Barrier 150 mm Frame Sealing Tape
installed over Ecoply Barrier Z flashing junction
Horizontal "Z" flashing in accordance with E2/AS1
Vertical section
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
29
ECOPLY® BARRIER FIRE RATED SYSTEMS
8.0 FIRE RATED SYSTEMS
30
Where compliance with NZBC Clauses C3 – Spread of Fire and Clause C4 – Structural Stability is required CHH Woodproducts
recommends the use of GIB® Fire Rated Systems overlaid directly with the Ecoply® Barrier rigid air barrier system.
Refer to the current GIB ® Fire Rated System literature for specifications and installation requirements downloadable from
www.gib.co.nz.
Where Ecoply Barrier overlays GIB® fire rated panels fastener lengths for the fixing of Ecoply Barrier panels must be increased
by the thickness of the GIB® panel to ensure the required fastener pull out loadings are achieved.
9.0 CLADDING SYSTEM INSTALLATION
•
•
•
•
Cladding must be installed as soon as possible.
Claddings must comply and be installed in line with NZBC and cladding supplier specifications.
Cladding maintenance advice should be sought from the cladding manufacturer.
Cladding fastener lengths must be increased by a minimum of 7mm to ensure the required fastener pull out loadings are achieved.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
10.0 WORKING INSTRUCTIONS
Hole Forming - Making Penetrations in Ecoply®
Barrier Sheets.
• Mark the centre of the hole on the sheet.
• Pre drill a pilot hole.
• Using the pilot hole as a guide, cut the hole to the appropriate
diameter with a hole saw fitted to a electric drill.
• For irregular rectangle or circular holes a perforation in the
sheet can be made by drilling a series of smaller holes around
the perimeter of the hole, then tapping out the waste piece
from the plywood sheathing or cut using a jig-saw.
Cutting Sheets - Making Cuts to Ecoply Barrier Sheets.
• Ecoply Barrier can be cut using any circular-saw or
hand-saw tool.
• When sawing, clamp a straight edge to the sheet as a
guide. Run the saw base along the straight edge to make
a precise cut.
11.0 REFERENCED DOCUMENTS
NZBC B1/AS1 Structure
NZBC B2/AS1 Durability
NZBC E2/AS1 External Moisture
AS/NZS 1170.2: 2011 Structural design actions – Wind Actions
NZS 1170.5: 2004 Structural design actions – Earthquake actions – New Zealand
AS/NZS 1604.3: 2012 Specification for preservative treatment – Plywood
AS/NZS 2269: 2012 Plywood Structural Specifications
NZS 3602: 2003 Timber and Wood based products for use in Building
NZS 3603: 1993 Timber Structures Standard
ECOPLY® BARRIER WORKING INSTRUCTIONS
Always use safe working practices when handling and installing Ecoply® Barrier plywood Sheathing. For further information
refer to Safety Data Sheets available online from www.chhwoodproducts.co.nz.
NZS 3604: 2011 Timber Framed Buildings
IBC AC148 Acceptance Criteria for Flexible Flashing Materials
CHH Woodproducts Product Technical Statement – Ecoply Barrier: Rigid Air Barrier
CHH Woodproducts Safety Data Sheet - Ecoply Barrier
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
31
ECOPLY® BARRIER FREQUENTLY ASKED QUESTIONS
12.0 FREQUENTLY ASKED QUESTIONS
Q: Do fastener heads need to be taped over?
Q: What is the weight of an Ecoply Barrier panel?
A: Fastener heads are not required to be taped over, unless the
fastener head completely penetrates the thickness of the
face veneer.
A: 2440mm panel = 11.7kg, 2745mm panel = 13.2kg
(guidelines only).
Q: What is the R-value of Ecoply Barrier?
Q: Do I need to tape all of the seams between the
Ecoply® Barrier plywood panels?
A: Yes. All seams between the panels must be taped with
Ecoply® Barrier Sealing Tape (60mm width Grey Colour)
to ensure that it functions as a structural rigid air barrier
system.
Q: Can Ecoply Barrier Sealing Tape, Sill Tape and Frame
Sealing Tape be installed in the rain?
A: Yes. The tapes require pressure for a secure seal, and will
require an extra period of time to fully adhere to the
surface.
Q: What is permeance, and why is it important?
A: Permeance is a property that defines the ease at which
water molecules diffuse through a material, typically
measured in “perms.” While water resistant barriers are
designed to keep liquid water out of the wall system, they
are also generally designed to allow moisture vapour to
pass through so that the wall system can “breathe” meaning
moisture vapour will not accumulate and condense in the
wall system.
A: The thermal resistance or insulating effectiveness of plywood
panels can be calculated using NZS 4214. Plywood has a
conductivity (K) of 0.13W/mC so a 7mm panel has a thermal
resistance R = 0.007/0.13 = 0.05.
Q: How much space should be left for expansion?
A: Allow 2-3mm expansion gap between square edges of Ecoply
Barrier Panels. Ecoply Barrier is provided in 1197mm widths
to account for this.
Q: Where can I purchase Ecoply Barrier panels and tapes
from?
A: Ecoply Barrier is available from all leading building merchants
in New Zealand.
Q: Can I use Ecoply Barrier on steel frame?
A: For use on steel framing please use Ecoply Barrier for Steel
and the use the Ecoply Barrier for Steel Specification and
Installation Guide.
Q: How long can I leave Ecoply Barrier panels exposed
before I install roof and wall coverings?
A: Ecoply Barrier panels can be left exposed for up to 180
days, however it is recommended to install roof and wall
coverings as soon as possible.
13.0 LIMITATIONS
The information contained in this document is current as at July
2017 and is based on data available to CHH Woodproducts at the
time of going to print.
All photographic images are intended to provide a general
impression only and should not be relied upon as an accurate
example of Ecoply Barrier products installed in accordance with
this document or the NZBC compliance documents.
CHH Woodproducts has used all reasonable endeavours
to ensure the accuracy and reliability of the information
contained in this document. However, to the maximum
extent permitted by law, CHH Woodproducts assumes no
responsibility or liability for any inaccuracies, omissions
or errors in this information nor for any actions taken in
reliance on this information.
This publication replaces all previous CHH Woodproducts’ design
information and literature relating to Ecoply Barrier structural
plywood products and tapes. CHH Woodproducts reserves
the right to change the information contained in this document
without prior notice. It is your responsibility to ensure that you
have the most up to date information available, including at the
time of applying for a building consent. You can call toll free on
0800 326 759 or visit www.chhwoodproducts.co.nz to obtain
current information.
32
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
14.0 ECOPLY® BARRIER INSTALLATION CHECKLIST
The below installation areas are considered critical to the
successful installation of Ecoply® Barrier when used as a rigid air
barrier.
Using this sheet as a checklist during installation will aid in
problem free product installation and long term product
durability post construction.
Task
Tick when checked
Prior to Specification and Installation
Read the Ecoply® Barrier Specification and Installation Guide in its entirety
Install
Position Ecoply Barrier panels with the water resistant powder coat film facing outwards
Sheet edges fully supported by framing
Sheet Cuts
Cut sheet ends are placed to the top
Fastener Material Type
Galvanised fasteners or better used (Stainless steel annular groove nails required in sea spray zones or other corrosive
environments – Zone D)
Sheet Fastener Pattern
Around sheet edge – maximum 150mm centre spacing
At intermediate framing – maximum 300mm centre spacing or 150mm in Extra High wind zone
Expansion Gap Between Sheets (Vertical sheet joints)
ECOPLY® BARRIER INSTALLATION CHECKLIST
1 4 . 1 R I G I D A I R BA R R I E R C H E C K L I S T
2-3mm gap between vertical edges of sheets
NOTE: Expansion gaps are required between vertical edges of sheets to accommodate natural expansion and contraction of sheets
Ground Clearances
Ground clearances maintained for claddings in accordance with E2/AS1 and NZS 3604
Sheets overhang the bottom plate by a minimum of 25mm & maximum 40mm over timber and concrete foundations
Vertical Sheet Joints
Seal all vertical joints including corners with Ecoply Barrier Sealing Tape (60mm x 30m) or Frame Sealing Tape
(150mm / 200mm x 30m)
All vertical window and door frames sealed with Ecoply Barrier Frame Sealing Tape
Horizontal Sill Flashing Detail
Apply Ecoply Barrier Sill Tape to the horizontal sill section of a window or door opening
Make sure the tape extends 100mm up both window / door studs
Horizontal Sheet Joints
Use Ecoply Barrier PVC horizontal Z Flashing (Product code RDZF7) OR Ecoply Barrier 150mm OR 200mm Frame
Sealing Tape.
Service Penetrations
Waste pipe outlets of maximum 150mm diameter placed at no closer than 150mm to the edge of braced element
Use a flexible sealing tape to seal the service penetration: minimum cover 100mm, 25mm minimum width around the
pipe penetration
Refer to the current Ecoply® Barrier Specification and Installation Guide for full installation specifications and suggested details.
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
33
34
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
CHH WOODPRODUCTS | ECOPLY® BARRIER | 0800 326 759 | www.chhwoodproducts.co.nz
35
Private Bag 92-106
Victoria Street West
Auckland 1142
New Zealand
Freephone: 0800 326 759
Freefax:
0800 746 400
www.chhwoodproducts.co.nz
July 2017
New Zealand
Manufactured