ATAS Field-Lok Low Slope User Manual

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

Hip & Ridge Detail

Headwall Detail

Valley Detail

Hip and ridge applications are handled in the same
manner.

1. Install underlayment to roof edge. Place 3/8” shim
as shown.

2. Cut “Z” closure to fit between seams and install in
butyl tape. Fasten through 3/8” shim to secure panel
( use 4 fasteners on 13 3/4”, 5 on 18” )

3. Seal neoprene strips into “Z” closures .

4. Snap hip/ridge cap over “Z” closures for it to lock
into place. Pop-rivet one side only to allow for
expansion and contraction.

Notes:
* Trim must be pop-riveted to Z in at least one
location to control thermal movement.
* Unless otherwise specified, all fasteners for trim
components should be spaced at 2’-0” o.c.
* Install splice plates at ridge cap joints. Pop rivet
splice to one end of ridge cap to allow for expansion
and contraction.

.

1. Install underlayment to roof edge. Place 3/8” shim
as shown.

2. In standard headwall situation (without venting),
run underlayment from roof plane up headwall.
Install panels up to headwall.

3. Fasten “Z” closure in bed of sealant at top of
panel. Fasten through 3/8” shim to secure panel.
( use 4 fasteners on 13 3/4”, 5 on 18” )

4.Seal neoprene closure into “Z” closure.

5. Install headwall transition over “Z” closure.

6. Apply counterflashing over the headwall trim, as
required.

1. Install ATA-Shield** approximately 18” up both
sides of the valley line.

2. Place 3/8” shim as shown.

3. Lay valley pan in valley center. Locate joggle cleat
at 4” to 6” from valley center.

4. Install joggle cleat. Fasten 6” o.c. through butyl
tape and pan into 3/8” shim and substrate.

5. Turn under edge of panel to slide into joggle cleat.
Fasten with clips at 2’-0” o.c.

12” Max.

4” Min. to 1’-6” Max.

2”

*

* Varies with roof pitch

3/8” or

1-3/8”

Hip/Ridge Cap

Standard “Z”
Closure

Field Lock
Panel

Anchor
Clip

Appropriate
Sealant

Reglet

Counterflashing

Headwall Transition

Standard “Z” Closure

Field Lock
Panel

1 3/8”

or 3/8”

6”

4”

*

* Varies with roof pitch

Valley Pan

Butyl Tape
Sealant

Support Plate

Appropriate Anchor
Screws

Field Lock Panel

~

Pipe Detail

Step 1

Cut on the proper pipe diam-

eter 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/butyl tape between overlapping trims.

11. Overlap trims in a manner not to impede the flow of water.

For further information or assistance, contact our Technical Product Support at 800-468-1441

©2004 ATAS International. All rights
reserved. Dutch Seam Shingle is a
tradename owned by ATAS
International, Inc.

ATAS International, Inc.

Corporate Office
Allentown, PA 18106
www.atas.com

Sidewall Detail

1. Install underlayment to sidewall.
Place 3/8” shim as shown.

2.Install metal panel up to within 1”
of the sidewall.

3. Fasten “Z” closure in bed of butyl
sealant at top of panel as shown.

4. Fasten sidewall trim over “Z” clo­sure to face of sidewall.

5. Apply counterflashing over the
sidewall trim, and seal into reglet.

NOTE: Trims should be fastened
to substrate and sidewall using a
#12 x 1” wafer head screw.

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. Location of gutters and the use of snow retention systems should also be considered. 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. 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.

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Appropriate Type
Sealant

Counterflashing

Sidewall
Trim

Standard “Z” Closure

Field
Lock
Panel

Offset
Angle

Anchor Clip

Appropriate
Anchor Screws

Painted
Pop-Rivet

Plain Pop­Rivet