WoodWorks Tegular Installation Instructions

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I n s ta l l a t i on I nst ruc t i ons
1.1 Product Description
WoodWorks Tegular ceilings consist of perforated and
unperforated 1' x 4', 1' x 6', 2' x 2', 2' x 4', and 2' x 6' panels
designed to be installed on Heavy Duty 9/16" wide T-Bar
suspension systems.
1.2 Surface Finish
All wood panels shall be constructed of wood chips factory
bonded together between two layers of wood veneer finish.
All exposed edges are banded with the same finish as the face.
1.3 Storage and Handling
The ceiling components shall be stored in a dry interior
location and shall remain in cartons prior to installation to
avoid damage. The cartons shall be stored in a flat, horizontal
position. The protectors between panels should not be
removed until installation. Proper care should be taken
when handling to avoid damage and soiling. Do not store
in unconditioned spaces with humidity greater than 55% or
lower than 25% RH and temperatures lower than 50°F or
greater than 86°F. Panels must not be exposed to extreme
temperatures, for example, close to a heating source or near a
window where there is direct sunlight.
1.4 Site Conditions
WoodWorks Tegular ceiling materials should be permitted
to reach room temperature and have a stabilized moisture
content for minimum of 72 hours before installation. (Remove
plastic wrap to allow panels to climatize.) They should not,
however, be installed in spaces where the temperature or
humidity conditions vary greatly from the temperatures and
conditions that will be normal in the occupied space.
1.5 HVAC Design & Operation
Proper design for both supply air and return air, maintenance
of the HVAC filters and building interior space are essential to
minimize soiling. Before starting the HVAC system, make sure
supply air is properly filtered and the building interior is free of
construction dust.
1.6 Temperature & Humidity During Installation
WoodWorks panels are interior finish products designed for
installation in temperature conditions between 50°F and 86°F,
in spaces where the building is enclosed and HVAC systems
are functioning and will be in continuous operation. Relative
humidity shall not fall below 25% or exceed 55%. There shall
be proper ventilation of the plenum in high moisture areas. All
plastering, concrete, terrazzo, or any other wet work should
be completely dry. All windows and doors should be in place.
The heating, ventilating, and air-conditioning system should
be installed and operable where necessary to maintain proper
temperature and humidity conditions before, during, and after
installation of the WoodWorks panels.
1.7 Color
WoodWorks panels are made with a variety of real wood
veneers. Natural variations in color and grain are characteristic
of wood products. To maximize visual consistency, panels
should be unpacked and examined collectively to determine
the most desirable arrangement for installation. Where
consistency is critical, Armstrong can offer custom solutions to
meet your budget and aesthetic requirements. Consult HPVA
for additional information on veneers and veneer grades.
2. Panel Edges
2.1 General
The edges of the Tegular panels feature 1/8" thick splines
which support the panel on the grid flanges.
3.1 General
The suspension system shall be standard 9/16" exposed
tee grid. The installation shall, in all cases, conform to the
requirements of the International Building Code and its
referenced standards. Because these panels weigh in excess
of 2.5 lbs/sf, the ceilings shall be installed per IBC Seismic
Design Categories D, E, and F. Included in these requirements
is the use of stabilizer bars or some other means to positively
prevent the grid from separating at the walls.
Additionally, walls or soffits that serve to support a panel edge
must be braced to the structure so as not to allow movement
greater than 1/8" when subjected to design lateral force
loads. When such bracing is not practical or is not effective,
additional mechanically connected grid components shall
be provided to capture all edges of every panel. Axiom®
Perimeter Trim connected to the grid with AXTBC clips will
also meet this requirement. The requirements listed here
represent the manufacturer’s minimum acceptable installation
recommendations, and may be subject to additional
requirements established by the local authority having
jurisdiction. 3.2 Suspension Grid
The suspension system for 2' x 2' panels shall consist of main
beams spaced 48" O.C. The 48" cross tees shall intersect
the main beams at 90° every 24". The 24" cross tees shall
be installed at the midpoints of the 48" tees.
3.2.1 The suspension system for 1' x 4' panels shall consist of
main beams installed at 48" centers. 4' cross tees (item XL7549)
may be installed parallel or perpendicular to the main beams.
3.2.2 The suspension system for 1' x 6' panels shall consist of
main beams at 2' centers. 6' cross tees (item XL7590) may be
installed parallel to the main beams with 2' cross tees (item
XL7520) completing the assembly.
3.2.3 The suspension system for 2' x 4' and 2' x 6' panels shall
consist of main beams installed at 2' centers with 2' cross tees
(item XL7520) completing the assembly.
3.2.4 In all cases, hangers shall be spaced not more than
4' on center along the length of the main beams and
should be located not more than 6" from a cross tee/main
beam intersection.
4.1 Cutting the Panel
Cut the panel using standard woodworking tools and
techniques. A table saw is recommended for straight cuts
and a band saw for curved cuts. In both cases, panels
should be cut face up to minimize chipping of the face veneer.
Fine-toothed blades recommended for finish cuts will yield the
best results.
4.5 Attach Safety Cables for 2' x 4' and 2' x 6' Panels
2' x 4' and 2' x 6' panels weigh in excess of 20 pounds and,
therefore, must have safety cables attached to prevent them
from falling to the floor in the event of a grid failure. The safety
cables will consist of an 18" length of wire rope with a small loop
formed at each end and a bag snap fitted to one of the loops.
Two cables are required at diagonal corners of each panel.
4.5.1 Attach two 18" long sections of 1-1/2" drywall grid, near
opposite corners, on the back of the panels. Use six #8 x 9/16"
long framing screws to secure each piece of grid. Be careful
not to strip out the holes when screwing. Cinch the plain end
of the cable around the hanger wire closest to the corner of the
panel and connect the bag snap to a hanger wire hole on the
grid section.
4.5.2 Attach Grid Stabilizer Clips to 1' x 6' and 2' x 6' Panels
Attach two grid stabilizer clips to the long side of each panel.
Clips should be offset to clips of adjacent panels. See below.
Safety Cable
(order seperately)
loop end of safety cable
around nearest hanger
wire to secure
4.2 Cutting the Border Panel
A router can be used to cut a Tegular edge on border panels,
or a straight cutoff is possible if border clips are used to
support the cut edge of perimeter panels. One border clip is
required for each foot of panel edge (i.e., one clip for edges up
to 12" long and 2 clips for edges greater than 12" up to 24").
Clips and screws are included with the panels.
CAUTION! WOOD DUST. Sawing, sanding, and machining
wood products can produce dust. Airborne wood dust can
cause respiratory, eye, and skin irritation. The International
Agency for Research on Cancer (IARC) has classified wood
dust as a nasal carcinogen in humans.
Precautionary measures: If power tools are used, they should
be equipped with a dust collector. If high dust levels are
encountered, use an appropriate NIOSH-designed dust mask.
Avoid dust contact with eyes and skin.
First Aid Measure in case of irritation:
Flush eyes or skin with water for at least 15 minutes.
4.3 Attach Border Clips
Apply WoodWorks® Tegular border clips to the cut edge of the
panel as shown. Use one #8 x 9/16" screw in each clip.
4.4 Odd Size Panels
Special size panels are available to accommodate less than full
modules within the field of the ceiling. A second option would
be to field cut these panels to the correct dimension. Examples
of conditions that might require this procedure would be odd
sized panels next to a linear air diffuser or 1' x 4' light fixtures.
Drywall Grid
(order seperately)
Grid Stabilizer Clips
(shipped with panel)
Drywall Grid
(order seperately)
4.6 Treating Exposed Edges
Cut panel edges that are exposed to view will have to be
treated to look like factory edges. Prefinished peel-and-stick
edge banding is available for this purpose. Cut edge must be
clean and smooth before applying edge banding. Peel off the
release paper (edge banding and trimming tools are ordered
directly from Armstrong through the Customer Focus Center)
and apply the edge banding using finger pressure or a small
trim roller. Trim excess material with a sharp knife blade or with
the edge trimmer available for order through Armstrong.
4.7 Edge Banding
Prefinished pressure sensitive adhesive banding is available
15/16" wide and in 25' lengths.
5. Seismic Restraint
WoodWorks Tegular has been engineered for application in
seismic areas. This system has been successfully tested in
applications simulating Seismic Design Categories D, E, and F.
6. Cleaning Recommendations
WoodWorks Tegular panels can be cleaned with a soft,
dry cloth.
more information
For more information, or for an Armstrong representative, call 1 877 ARMSTRONG.
For complete technical information, detail drawings, CAD design assistance, installation information, and
many other technical services, call TechLine services at 1 877 armstrong or FAX 1 800 572 TECH.
For the latest product selection and specification data, visit armstrong.com/woodworks.
U.S. Patents Pending, including US Publication No. 2004/0182022.
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