Installation Guide
Review and understand complete
guide before beginning installation.
This guide has been prepared as
suggested details to particular design
conditions. Each condition has certain
limitations to performance, aethetics or economics.
Professionals qualified to assess this information for a
specific project, should determine that the selection and
installation are made to their requirements. ATAS cannot
assume any responsibility for the actual selection and/or
installation of materials. The panels, flashings and trim
shown in this guide, illustrated over solid and plumb substrate, assume that the structure has been designed and
prepared in accordance with local building codes.
Granutile is installed horizontally, from the ridge down. The
panels can be installed over open framing, solid underlayment or over low profile roofing material. When installing
over open framing a vapor barrier is required beneath the
panel. It is recommended to use ATA Guard over a solid substrate or old roofing material. In addition install waterproofing
membrane at all eaves, valleys, hip and ridges. 2” x 2” wood
battens are used to provide a fastening point for the panels.
Space battens as shown below.
Upper panel row overlaps lower row.
The panel should be fastened with
SWR9XX into the wood batten.
Panel sides should overlap as shown.
Panel overlaps
45 3/4”
15 1/2”
1”
Panel size - 15 1/2” nom. x 45 3/4” nom.
with a 1” deep nom. front face
Panel coverage - 14 1/2” nom. x 43 3/4” nom.
Place ATA Guard on the roof overlapping
the bottom row at the eave. Depending on
location, codes, etc. water / ice proofing
membrane may be required at the eaves and
valleys, hips and gables. It is recommended
to leave 1” space between lengths of wood
battens and stagger the spaces up the roof.
The first row of battens should be installed at
the eave.
The second row of battens should be at 14 1/4”
measured from front of first row. The sunsequent rows of battens should be 14 1/2” apart.
The top batten is installed at the ridge. The top
panel is measured to size and bent up. This is
done prior to cutting to length to minimize panel
distortion. Then the panel is cut 1” above the
bend to form a water barrier and fastened to
the wood batten. The second row is slipped
behind the front face of the top row and fastened through both panels into the batten.
Lay-out of
Horizontal Furring
Components
14 1/4”
14 1/2”
14 1/2”
14 1/2” spacing
up the roof
as
required
Wood Batten
cant strip
Eave Detail
Gable Detail
Valley Detail
1. Install Cant Strip as shown behind the first 2” x 2”
batten.
2. Apply ATA-Shield** along eave and up the roof to
a point at least 24” beyond outside face of exterior
wall.
2. Install eave trim against fascia trim. Space
fasteners at a maximum of 12” o.c. Overlap drip
edge a minimum of 2”.
3. Place appropriate underlayment/ATA-Guard* on
the roof, overlapping cant strip and eave trim.
4. Refer to gable and/or valley details as required
before installing panels.
5. Install panel by sliding lower flange over eave trim.
1. Install thre (3) 2” x 2” battens at the gable edge as
shown.
2. Lay panel in place as shown and bend the edge of
the panel up against the upper batten to create a
water diverter
3. Install Barrel Flashing Caps from eavr to ridge.
Fasten at top of cap into the wood battens. Be sure
that upper caps lock into the flange of the previously
installed cap.
1. Place ATA-Shield** 18” up both sides of the valley
line.
2. Install 2” x 2” battens to a point 6 1/2” from the
middle of the valley. Place the valley pan in the valley working from bottom to top.
3. Fasten the valley through the top flange of the
valley into the wood battens.
4. Measure panel to valley angle. Cut panel to
required angle and size; allow extra for bending
“angle” over 1” into the valley.
Underlayments: ATA-Shield** is the recommended self adhesive underlayment for eaves, sidewall and any critical areas
exposed to ice damming and extensive water run off.
Available in 65’-8” rolls.
Underlayments: ATA-Guard* is a polyolefin based, 100% asphalt
free, high strength reinforced roofing underlayment for use on
steep slopes beneath metal roofing.
HGT144 Granutile Panel
HGA806
Valley Pan
HGT144 Granutile Panel
Wood Battens
HGA310
Barrel
Flashing
Cap
30# Felt
Cant Strip
HGT144 Granutile
Panel
ATA Guard
*
#12 x 1” Wafer
Head Screws
HGA116/HGA117
Eave Trim
2” x 2” Wood
Batten
SWR9XX Woodscrew - 2”
2” x 2”
Wood
Batten
#12 x 1” Wafer
Head Screws
#12 x 1” Wafer
Head Screws
ATA Shield
**
Hip & Ridge Detail
Headwall Detail
AT THE RIDGE
1. After installing all the wood battens up the
roof, measure the distance between the last
two rows. Cut panel to size leaving 1” to
bend up agaist the batten at the ridge. Fasten
panel to wood batten.
2. Place ridge cap in place and face fasten in
to wood batten.
AT THE HIP
1. Run wood battens on each side of the hip.
2. Measure and cut each panel to size + 1”.
Bend the panel up 1” to fit and fasten to wood
batten.
3. Place cap at hip and fasten to wood batten.
HIP and RIDGE CONNECTION
Due to the fact that angles will vary with each
roof geometry, this is a field operation.
Cut the left and right hip flashing caps to fit
into each other and into the ridge.
Fit the ridge flashing cap over the hips and
fasten into the sides. Fasten the end cap to
close the ridge.
1. Extend 4” of the ATA Guard* above the roof and
tack to the wall.
2. Install a wood battenat the headwall.
3. Measure height of last panel row, bend panel up,
cut 1” above bend, fasten panel in the front face and
into the wall.
4. Face fasten top of Zee Bar flush to the wall. Be
sure the lower portion of the Zee Bar covers the
panel fastener in the wall.
5. Place sealant at the top of the Zee Bar as shown.
HGA310 Barrel
Flashing Cap
SWA9XX
2” Wood
Screws
2” x 2”
Wood
Batten
ATA Guard
SWR9XX
2” Wood
Screw
HGT144
Granutile
Panel
HGA310 Barrel
Flashing Cap
2” x 2”
Wood
Batten
ATA Guard
SWR9XX
2” Wood
Screw
HGT144
Granutile
Panel
Appropriate Sealant
SWR9XX Wood Screw - 2”
HGA412 Z Bar
HGT144
Granutile
Panel
SWR9XX
2” Wood
Screw
ATA Guard
2” x 2”
Wood Batten
#12 x 1”
Wafer Head
Screw
Pipe Detail
Step 1
Cut on the proper pipe
diameter marked on the
flashing.
Step 2
Position over pipe and slide
down the pipe.
Step 3
Apply polyurethane sealant
to the bottom of the base.
Step 4
Mold the flexible base
to the panel contours.
Step 5
Fasten with 1/4” x
1-1/8” drilling
fastener every 1-
1/2” around the
base.
Pipe drawings provided by Triangle Fasteners
Tools and Rules:
Basic Equipment Required:
Tie-off ropes, safety harness, long level, ladders, scaffolding with
approved planking, extension cords with approved ground plugs
and services.
Additional Tools:
Metal folding tool, hammer, chalk line, measuring tape, metal cutting tools - nibblers, drills, hacksaw, utility knife, pop-rivet gun,
caulking guns, layout and combination square, C clamps, sheet
metal shears (including RH, LH, straight and overhand). Power
driven screw gun with proper bits, depth setting nosepiece, variable speed.
Choose the correct equipment and tools to do the job in a
safe manner. Wear safety gear and follow OHSA requirements.
Follow of few simple rules:
1. Never cut the panels with an abrasive cut-off wheel or torch, as
this will damage the finish.
2. Do not weld the trim or panels.
3. Remove any small burrs left by cutting, screwing or drilling.
4. Remove protective masking immediately after trim is installed.
5. Caution should be taken when unloading the panels to prevent
damage.
6. Use appropriate screws for the type of underlayment and long
enough to fully penetrate and secure the panel.
7. The stored materials should be kept dry.
8. Do not cut on finished roof. Remove all drill spirals, chips and
dust immediately.
9. Seal neoprene closures and soft cell foam by applying appropriate sealant to both surfaces.
10. Put appropriate sealant/butyle tape between overlapping trims.
11. Overlap trims in a manner not to impede the flow of water.
For further information or assistance, contact our Residential Product Support at 877-286-3320
©2006 Accel Roofing Products. All
rights reserved. Granutile Panel is a
tradename owned by ATAS
International, Inc.
ATAS International, Inc.
Corporate Office
6612 Snowdrift Road
Allentown, PA 18106
Sidewall Detail
1. Install ATA-Shield** along roof plane and up sidewall.
2. Lay panel in place as shown and bend the edge
of the panel up against the wall to create a water
diverter. Fasten the bend edge of the panel into the
wall.
3. Face fasten top of Zee Bar flush to the wall. Be
sure the lower portion of the Zee Bar covers the
panel fastener in the wall.
4. Place sealant at the top of the Zee Bar as shown..
Note Regarding Trim Details
The applicaiton of flashing and trim requires a detailed approach. Consideration should be given to the roof’s geometry and course it
creates for water run-off. Proper planning regarding the sequence of material overlap is critical. Sealants, such as butyl tapes and
tripolymers, should be used at overlapping trim edges, in conjunction with exposed fasteners, and to seal flashings and other ancillaries. All fasteners should be properly tightened and not overdriven at an angle. Fasteners that are too loose can “back out” over time.
An overdriven fastener may cause a depression in the material, which becomes a collection point for standing water.
Appropriate Sealant
SWR9XX Wood Screw 2”
HGA412 Z Bar
HGT144
Granutile Panel
#12 x 1”
Wafer Head
Screws
LAT240
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