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 are illustrated over solid and plumb
substrate. It is assumed that the structure has been
designed and prepared in accordance with local building
codes.
NOTE : This guide to be used for installations with
a roof slope of 2:12 or less only on a solid substrate. Consult factory for all other installations.
Field Lock Panel has extra strength, extra height - field
seamed panel. Installed with concealed clips and fasteners
and a mechanical seamer in a tri-fold lock-in application.
Panels are available in smooth or embossed texture in 29
standard ATAS colors are available with premium KYNAR
500® or HYLAR 5000® finish. Stiffening ribs are optional.
Low Slope
Field-Lok Seam Panel Anchoring
Note: The appropriate fasteners
must be sufficiently
long enough to
penetrate through
a solid substrate.
Step #1 - Locate the anchor
clip over the right (male) leg of
the previously laid panel to
afford the proper clip spacing note how the base centering
stops positions and holds the
movable section of the clip.
DO NOT fully set the screw(s)
until all have been located
along this seam line.
Step #2 - Fully set the screw(s)
and note how this action now
releases the movable section of
the clip and allows for roof
movement (expansion /
contraction).
Step #3 - Hook the entire left
(female) leg of the next panel
over the right (male) leg of
the previously installed panel
making sure to fully engage
the factory installed sealant
(optional).
Step #4 - Roll seam the joint
utilizing the joint seamer.
3/8”
Base centering stops
Factory
applied
sealant
(optional)
Factory
applied
sealant
(optional)
13 3/4” (FLS137) and 18” (FLS180) wide
FLS Panel
FLS180
FLS137
Factory Sealant
(optional)
"PENCIL GROOVE" TYPE
STIFFENING RIB
( OPTIONAL )
2 3/8"
"PENCIL GROOVE" TYPE
2 3/8"
STIFFENING RIBS
( OPTIONAL )
Eave Detail
Gable Detail
1. Apply ATA-Shield** along eave and up the roof to
a point at least 24” beyond outside face of exterior
wall.
2. Install 3/8” shim at eave.
3. Install drip edge against fascia trim. Lay ATA-
Guard*over eave trim.
4. Trim (cut) both seams back to allow for turn down.
Install panel by sliding lower flanged edge over drip
edge.
5. See below for proper panel sidelap installation.
General Note: Before any installation be sure to lay
ATA-Shield**in all areas where ice & water can
occur. ATA-Guard or appropriate underlayment
should be installed over the entire roof.
1. Install underlayment to gable edge. Place 3/8”
shim as shown.
2. At gable start detail, install gable trim starter cleat
with appropriate fasteners at 2’-0” into fascia board.
3. At end gable, cut panel to appropriate width to
allow room for clips at gable end. If panel cut off is
3” or wider install cut off portion of panel underneath
last panel w/ butyl tape applied in between the two
panels and install clips before installing gable assembly.
4. Apply double-faced butyl sealant as circled in
sketch. Fasten “Z” closure to panel with pop-rivets.
5. Install starter cleat at end detail same as start
detail.
6. At both ends snap gable/rake trim over starter
cleat and “Z” closure to lock into place. Pop-rivet
these two pieces together with one pop-rivet per trim
length.
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” x 39-3/8” rolls (200 sq. ft. per roll).
Underlayments: ATA-Guard* is a polyolefin based, 100%
asphalt free, high strength reinforced roofing underlayment for use beneath metal roofing on steep slope applications. 1000 sq. ft. per roll at 48” wide.
PANEL SIDELAP
3/8” or 1 3/8”
Appropriate anchor
screws sufficiently long
enough to fully penetrate
the solid substrate.
Field Lock Panel
Offset Angle
Butyl Tape
Sealant
Eave Trim
Wall
Panel
FULL PANEL WIDTH
Field Lock Panel
Butyl Tape Sealant
Standard “Z” Closure
Extended
Gable/Rake
Starter Cleat
Gable/
Rake
Closure
Trim
Rake Angle
Offset Angle
Appropriate Anchor Screw
Plain pop-rivets
Wall
Panel
Anchor Clips
#12 x 1-1/4” Hex
Head Screws
CLAMP PANEL AS
SHOWN FOR PROPER SEAL.
Eave end
of panel
Shim
Eave end
of panel
Shim
Install clamp on
lower portion of
vertical leg