Light Gauge Metal Roof
and Wall Panels
Installation Guide for Delta Rib™, Delta Rib™ III, Nor-Clad®, Strata Rib®  & 21⁄2  Corrugated

Light Gauge Metal Roof & Wall Panels

A Division of ASC Profiles LLC

Table of Contents

Section
Introduction	2
Minimum Recommended Tools & Equipment	2-3
Delivery, Handling & Storage	3
Safety Considerations	3
Roof Preparation	4
Map of Typical Roof Conditions	5
Trim Locations	6
Fastener Placement	6
Fastener Selection	7
Panel Installation	8
Hip/Ridge Flashing	9
Universal Ridge Termination	10
Vented Ridge Flashing	11
Vented Ridge Termination	12
Valley Flashing	13
Valley Termination	14
Eave and Vented Eave Flashings	15
Eave Flashing Preparation	16
Gutter and Vented Gutter Flashing	17
Gable Flashing	18
Gable/Ridge Transition	19
Gable Corner at Eave	19
Gable Flashing Preparation	20
Gable Flashing Preparation at Ridge	21
Peak Flashing	22
Vented Peak Flashing	23
Sidewall Flashing	24
Endwall Flashing	25
Vented Endwall Flashing	26

Section
Slope Transition - High to Low Slope	27
Slope Transition - Low to High Slope	28
Chalet Gable Flashing	29
Adjustable Gable Flashing	30
Vent Flashing	31
Vent/Pipe Flashing Installation Procedure	32
Skylight Flashing	33
Skylight Flashing (Side)	33
Skylight Flashing (Uphill Side)	34
Skylight Flashing (Downhill Side)	35
Procedure for the Installation of
Skylight Flashings	36
Skylight Flashing Preparation	36-37
Chimney Flashing	38
Chimney Flashing (Side)	39
Chimney Flashing (Uphill Side)	40
Chimney Flashing (Downhill Side)	41
Valley Top End	42
Valley Dormer	43
Panel End Lap	44
Sealing End Laps & Lapping the Hems	45
Window/Door Trim Corner Wall Detail	46
Base Trim, Wall Step, Panel Top Wall Detail	47
Inside Corner Wall Detail	48
Outside Corner Wall Detail	49

Introduction
In addition to weather tightness, long life, good looks  and economy, ASC Building Product’s Light Gauge Roof and Wall Panels are designed with ease of installation  as a primary consideration . This guide is intended to help the installer achieve a high level of quality in the finished product . Please do not hesitate to contact an ASC Building Products representative for assistance .

Important Notice
Be sure to read this manual in its entirety before beginning installation.

This manual is provided to the customers of ASC Building Products as a guide to assist in the installation of Light Gauge Metal Roof and Wall Panels . Use for any other purpose is prohibited . This manual remains the property of ASC Building Products .

These instructions contain suggested application procedures only and cannot replace the need for good common sense and experience . Responsibility for conformance to state and local building codes, as well as any other applicable project requirements rests with the installer, as does the responsibility to observe reasonable safety procedures .

ASC Building Products assumes no responsibility for any problems which might arise as a result of improper
installation or any personal injury or property damage that may occur with the product’s use .

Minimum Recommended Tools & Equipment
Screw Gun:
Clutch type screw gun with depth locating nose piece allowing variable torque settings is recommended to insure proper installation of the screws . The following sockets will be required: 1⁄4" and/or 5⁄16" hex .
Snips:
For miscellaneous panel and flashing cutting requirements . Three pairs of snips will be required for left edge, right edge, and centerline cuts .
Electrical Metal Shears:
Used for general metal cutting, such as at the hips and valleys

Note:
Some erectors prefer to use circular power saws with metal cutting abrasive blades. While the use of power saws may be faster, there are some disadvantages that must be considered:
The edges of metal that have been saw cut are jagged and unsightly, and are more likely to rust than sheared edges.
Saw cutting will leave small particles of metal on the panel surface that will rust and damage the panel finish if not completely removed.

Chalk Line:
Used to assist in the alignment of panels, flashings, etc

Note:
It is recommended that Light Gauge Roofing be applied on roofs with a minimum slope of 3 inches per foot (3:12).

* The details contained in this guide are shown over a plywood substrate. Details remain the same for either a solid substrate (plywood/OSB or steel decking), spaced framing or intermittent support conditions with only the fastener type changing. Where spaced framing is used, perimeter supports for flashings must be considered.

** Each flashing part in this guide has been assigned a part number. Each part number contains one or two letters followed by one or two numbers, for example: (EW17). These part numbers have been provided for you to make ordering these flashing parts quick and easy.

Neoprene Mastic Tape:
1⁄16" x 1⁄4" roll of tape used for installation of inside and out- side profile closures and panel side laps .
Butyl Mastic Tape:
1⁄16" x 1⁄2" roll of tape used for prevention of water infiltra- tion in flashing to sheet metal applications .
Caulk:
Butyl or urethane sealant used to inhibit water infiltration .
Caulking Gun:
For miscellaneous caulking and sealing to inhibit water infiltration .
Blind Rivet Hand Tool:
Used for miscellaneous flashing and trim applications .
Marking Tools:
Indelible markers, pencils, or scratching tools .

Minimum Recommended Tools & Equipment (Con’t)

Scratch Awl:
Used to mark the steel .
Utility Knife:
Used for miscellaneous cutting .

Electric Drill:
Used to drill holes such as those required for rivet installation .

String Line:
Used for general alignment and measuring .

Tape Measure:
25 foot minimum (another 50 ft . is handy) .

Locking Pliers:
Standard and “Duckbill” style for miscellaneous clamping and bending of parts .

Delivery, Handling and Storage

Always check the shipment upon delivery . Check for damage and check material quantities against the shipping list . Note any damaged material or shortages at the time of delivery .

Handle panel bundles and individual panels with care to avoid damage . Longer bundles and panels may require two or more “pick points” properly spaced to avoid damage that can result from buckling and/or bending of the panels . Request a copy of the Long Length Handling Instructions and diagrams from ASC Building Products customer service as required .

Store the panels and other materials in a dry, well ventilated area and away from traffic . Elevate one end of the bundle so that any moisture that may have accumulated during shipping can run off . Be sure that air will be able to circulate freely around the bundles to avoid the build-up of moisture . Never store materials in direct contact with the ground .

Wear clean cotton gloves when handling unpainted ZINCALUME®-coated panels or flashings to avoid discoloration . Rollforming die marks (which appear black), particularly at bends, will be visible .

Wear clean, non-marking, soft soled shoes when walking on the panels to avoid shoe marks or damage to the finish . Do not step on the panel seams or ribs . Step only in the flat area of the panel .

Safety Considerations

Never use unsecured or partially installed panels as a working platform.
Do not walk on panels until they are in place on the roof and all of the fasteners attaching the panels to the roof have been installed .
Metal roofing panels are slippery when wet, dusty, frosty or oily.
Do not walk on a metal roof when any of these conditions are present . Wearing soft soled shoes will help minimize slipping and help prevent damage to the painted surfaces .
Do not walk on the panel seams or major ribs.
When walking on the fully installed roof panels, be sure to step only in the flat areas of the panels .
Always be aware of your position on the roof relative to your surroundings.
Take note of the locations of roof openings, roof edges, equipment, co-workers, etc .
Always wear proper clothing and safety attire.
Wear proper clothing when working with sheet metal in order to minimize the potential for cuts,
abrasions, and other injuries . ASC Building Products recommends safety glasses and gloves .
Use care when operating electrical and other power equipment.
Observe all manufacturer’s safety recommendations .
Roof installation on windy or stormy days can be dangerous .
Avoid working with sheet metal products on windy or stormy days .

Roof Preparation
ASC’s Light Gauge Roofing can be used in both new construction and retrofit roofing applications . We recommend the installation of Light Gauge Roofing over a continuous rigid substrate such as plywood/OSB, or over intermittent supports . Contact ASC for additional information .

The following steps need to be taken to prepare the roof for installation of Light Gauge Roofing panels:

New Roofs:
1 . Make sure there are no nails or other objects protruding from the substrates that might puncture the underlayment or the roof panels . Clean all debris from the roof .
2 . Check all details for possible roof penetrations which must be added to the deck prior to roof panel installation .
3 . Cover the entire roof deck with a minimum of 30 lb asphalt-saturated felt paper . Some synthetic
underlayments may be used in place of felt with ASC Building Products’ roofing . Installer must ensure they meet the minimum standards of 30 lb felt and that the underlayment manufacturer has approved them for use with metal roofing . For applications over spaced framing other types of moisture barriers may be required . For Class A fire resistance, see notes below . For installation begin at the eave and roll the felt horizontally (parallel to the eave) . Allow each consecutive course to overlap the previous one 3 inches . Overlap the ends a minimum of 6" (See illustration #1) . Areas of underlayment that have torn should be replaced or repaired prior to installation of the metal roof .

Constructions Requiring Class ‘A’ Fire Resistance:
Panel: ASC Building Products’ light gauge steel roof panels .
Barrier Sheet (required): One layer GAF VersaShield . (UL-approved GP DensDeck also acceptable)
Additional Ply Sheet (optional): Any UL-classified Type G1, G2 or G3 base/ply sheet, Type 15, 20 or 30 felt or
UL-classified prepared roofing accessory or WR Grace “Ice and Water Shield” .
Substrate: 15⁄32” min. plywood or 7/16” min. OSB

Notes:
Obey all local code requirements .
Class A assembly requirements noted above per UL listing #TGFU .R21182 . Refer to UL listing for specific construction limitations .

4 . Place an alignment line along the gable end where the first roof panel will be installed . This line must be
parallel to the gable edge of the roof deck and square with the eave line. Check the roof for squareness by making a 3' line across the eave . (See illustration #2) .
Completing the 3' x 4' x 5' triangle should place the 4' edge of the triangle parallel with the gable . The first roof panel will be placed parallel with this line . Slight variations or out-of-square conditions up to 3" can be covered by the gable trims shown on page 18 .

6" END LAP

30# FELT PAPER

3" SIDE LAP

5 . It is very important to measure the entire length of the roof from gable to gable . Correct placement of the panels will allow the panel’s ribs on each side to be covered by the gable flashing shown on page 18 . This will create a symmetrical appearance on both gables . Should this be impractical, the adjustable gable detail on page 30 can be used .

Note:
In areas where snow, ice, and heavy rain conditions exist, a high temperature cold-applied rubberized underlayment should be used in lieu of felt in the valleys . Felt on the remainder of the roof will lap over the membrane where the two meet . See Valley page 13 .

Illustration No. 1

Existing Roofing:
Some jurisdictions will allow reroofing over existing roofing without the need for tearoff . Check with your local codes or building department for your specific requirements .

ALIGNMENT LINE

1/4" IN FROM	DIRECTION OF
THE GABLE	PANEL APPLICATION

LINE MUST BE SQARE WITH EAVE

For best results, Light Gauge Roofing requires a relatively smooth and flat substrate . Application over rough and/or uneven surfaces is not recommended, for example, wood shingles . If the roof is to be stripped down to the existing decking, follow the procedures for new roofs on page 4 . Be sure to check the existing roof and repair any damaged areas prior to installation of the new roof system .

Note:
Do not apply Light Gauge Roofing over roofs with structural damage or trapped moisture .

Illustration No. 2

The following steps should be taken when installing ASC’s Light Gauge Roofing over existing roofing:

1 . Inspect the roof for damage and make the necessary repairs to achieve a flat plane for the metal roof panels . Wood shingles should be removed .
2 . Secure any warped or loose roofing .
3 . Make sure that there are no nails or other objects protruding from the roof that might puncture the new underlayment or the new roof panels .
4 . Remove all moss and other debris from the roof .

Map of Typical Roof Conditions

5 . Cut off any overhanging roofing flush with the roof deck and remove all hips, ridge caps, and penetration flashings .
6 . Metal debris/shavings should be removed from the roof progressively and daily to prevent immediate corrosion and scratching of the top coat .
7 . Follow the directions on page 4, #2 through #5 on roof preparation .

For suggestions on how to trim flashings in the different areas, please refer to the following pages:

Flashing	Page(s)
Adjustable Gable	30
Chalet Gable	29
Chimney	38-41
Eave	15-16
Endwall	25-26
Gable	10, 12, 18-21
Gutter	17

Flashing	Page(s)
Peak	22
Pitch Transition	27-28
Ridge	9, 11
Sidewall Flashing	24
Skylight	33-37
Valley .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  13-14, 42-43
Vent	31-32

Trim Locations

TOP CLOSURE

UNIVERSAL SIDEWALL

UNIVERSAL RIDGE

GABLE TRIM

UNIVERSAL ENDWALL

PIPE FLASHING

JAMB TRIM

BASE TRIM

MATCHING FIBERGLASS

Fastener Placement

OUTSIDE CORNER

ETAL

INSIDE CORNER

EAVE FLASHING

BOTTOM CLOSURE

SINGLE TRACK COVER

DOUBLE TRACK COVER

Prevailing Weather	 		 	Sheeting Direction	Neoprene  or Butyl Mastic (Typ)

Nor-Clad® (36" Coverage)

Strata Rib™ (36" Coverage)

Lap Stitch Screw (Typ)

Delta Rib III (36" Coverage)

or

MAXIMUM RECOMMENDED FASTENER ROW SPACING*

Woodscrew (Typ)

36" (See notes below)

Delta Rib (24" Coverage)
2-1/2" Corrugated (21-1/3" Coverage) Roof Applications

2-1/2" Corrugated (24" Coverage) Wall Applications

Notes:
Lap panels away from prevailing weather. Use only those accessories specifically designed for use with this product. Use only galvanized or ZINCALUME®-coated fasteners. Isolate roofing and flashings from contact with dissimilar metals. Fastener selection will vary based upon - see chart on following page. The use of neoprene or butyl mastic tape along the sidelaps, as shown above, is always recommended for roofs. Lap stitch screws should be placed at 16" o.c. maximum.

*The maximum recommended fastener row spacing is based on 2015 IBC/IRC 115 mph wind speed and an exposure rating of “B” (protected)  for typical buildings. Refer to IAPMO-UES Building Code Compliance Report #ER-0550 for a more complete list of panel attachments and perfor- mance data. More efficient panel attachment patterns may be available.

Fastener Selection

Fastener #	Description	Use	

No . 9 x 1", 11⁄2", 2", 21⁄2", 3" Wood Screw 1⁄4" Hex Head	
Panel to dimensional lumber	

No . 14 x 1", 11⁄2" Wood Screw
5⁄16" Hex Head	

Panel to plywood/OSB minimum
7⁄16" thick .	

	No . 12 x 3⁄4" Stitch Screw
1⁄4" Hex Head
(compatible with No . 9 Wood Screw)	
Trim and side lap attachments .	

	No . 14 x 7⁄8" Lap Self Driller
5⁄16" Hex Head
(compatible with No . 14 Wood Screw)	
Trim and side lap attachments .	

STST-42 Stainless Steel Rivet
1⁄8" x 1⁄8"	
Trim-to-trim or
trim-to-panel attachments .	

No . 12 x 1", 11⁄2", 2", 21⁄2" Self Driller
5⁄16" Hex Head	

Panel to purlin or deck attachments	

Notes
The table above shows the Light Gauge panel fasteners provided by ASC Building	Proper Installation of Gasketed Fasteners	
Products. Refer to the panel installation, flashing details, and fastener placement		
pages of this manual for specific fastener usage. See page 6 for fastener spacing.
Panel attachment screws must be long enough to penetrate through the roof decking	Correctly Driven	
at least 3⁄8", or penetrate solid lumber at least one inch.		
All screws must be coated to provide protection against corrosion.		
Exposed fasteners should have sealing washers and be the same color as the parts
they attach.	Under Driven	
Roofing nails will also be required, but are not furnished by ASC. They are typically		
used to temporarily hold a flashing in place that needs to be installed prior to panels.
Screws must be properly driven to ensure proper seal and holding strength. Do not	Over Driven	
under \drive or overdrive the screws. Recommended drill speed is 2000 rpm. Use of a		
depth-sensing nosepiece will aid in properly driving screws.		

Panel Installation
GENERAL
Study the details section of this manual prior to the installation of the panels . Pay close attention to the following:

Flashings that need to be installed prior to the panels include Valley, Eave, Vented Eave, Adjustable Gable and Chalet Gable .

Apply sealant or mastic tape to the pre-installed flashings as shown in the detail section of this manual .

PROCEDURE
1 . Install eave trim, valley trim and inside closure prior to panel installation .
2 . Align the edge of the first panel with the alignment line constructed along the start gable . (See page 4 item 4 and illustration #3 below). Allow the panel to overhang the eave 1" minimum .
3 . Check the downhill end of the panel . If the panel length is correct, the panel should overhang 1" past the eave trim as shown below in illustration #4 . Also, the panel should not extend past the centerline of the ridge . (See page 9)
4 . After the first panel is properly aligned, fasten per the fastener placement and spacing guidelines on page 6 .
5 . Lay down the second and third panels, checking alignment, making sure they are square . This will ensure that a sawtooth effect at the eave and ridge is avoided .
6 . Metal debris/shavings should be removed from the roof progressively and daily to prevent immediate corrosion and scratching of the top coat .

ILLUSTRATION #3

ASC'S LIGHT GAUGE ROOFING

1"	1"

SEE PAGE 6 & 7 FOR FASTENER PLACEMENT AND SELECTION

ILLUSTRATION #4

1" OVERHANG

Hip/Ridge Flashing

  2"

2 1/8"

1 7/8"

1/2"

3/4"

1/2"

7"

7"

3/8" HEM

3-3/4"

3-1/2"

135º TYP.

1/2"

3/8" HEM

R1	R3	R4

UNIVERSAL RIDGE (R1)

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" LAP SELF DRILLER @ EACH RIB OR 8" O.C.
FOR CORRUGATED

ASC'S LIGHT GAUGE ROOFING

2.

#14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

TOP POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND
(SEE PROCEDURES)

Note: The gable flashing must be installed prior to installation of the ridge (see page 18).

Procedures
Caulk the bottom and sides of the polyethylene closure . Set the closure as shown above and caulk the top . The closure is optional if the panel is turned up and caulked at the sides near the rib .
Fasten the ridge cap using stitch screw at each rib or 8" o .c . for corrugated .

Note: “R1” is a universal hip/ridge. A standard hip/ ridge, “R3 & R4”, is also available.

Close the ends of the universal ridge cap by cutting and folding material at each end . Fasten with rivets . (see page 10)
Caulk, lap and rivet sequential ridge flashings .
(see page 45)

Universal Ridge Termination

UNIVERSAL RIDGE (R1)

BUTYL MASTIC TAPE
OR NEOPRENE CLOSURE REMNANTS TO CLOSE OFF THE RIDGE

STITCH SCREW 1/2" FROM EDGE OF GABLE

CAULK AND RIVET
1"

GABLE

SEE PAGE 21 FOR GABLE PREPARATION
OVERHANG UP TO 4" THEN FIELD TRIM TO
1" USING SNIPS OR SHEAR

Vented Ridge/Hip Flashing

1”

  

3/8" HEM

7/8"

C1

2”

6 3/4"	6 3/4"

1 7/8"	 	1 1/8"	 	

1 7/8"

3/8" HEM

1 1/8"

R2

3/8" HEM

VENTED RIDGE (R2) ASC'S LIGHT
GAUGE ROOFING

SCREEN BY OTHERS

2"

#14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7
#12x3/4" STITCH SCREW OR
#14x7/8" LAP SELF DRILLER @ EACH RIB OR 8" O.C.
FOR CORRUGATED

TOP CLOSURE

ETAL (C1)

Procedures
Substrate should be held back 2" from each side of the ridge .
Attach the screen at each panel rib sandwiching the top closure in place . Ensure screen is pulled tight to avoid sagging .

Note: The gable flashing must be installed prior to installation of the ridge (see page 18).
The screening shown creates a barrier for insects and birds while allowing for ventilation.
For snow and heavy rain environments, please inquire about optional Vented Ridge details.

Fasten the vented ridge using stitch screw at each rib or 8" o .c . for corrugated .
Caulk, lap and rivet sequential flashings .
(see page 45).
Close the ends of the ridge cap by cutting and folding material at each end . Fasten with rivets and caulking joints . (see page 12).
Slopes greater than 6:12 may require special ridge dimensions .

Vented Ridge/Hip Termination

CUT AND TRIM SIMILAR TO GABLE (SEE PAGE 21). FOLD DOWN OVER END TABS.

CUT AT BENDS 1" AND FOLD IN 90˚

VENTED RIDGE (R2) CAULK

CAULK AND RIVET

GABLE
SEE GABLE PREPARATION @ RIDGE (PAGE 21)

Valley Flashing

IF PAINTED, THIS SIDE

1"

13"

13"

1" TYP

19-7/16"

19-7/16"

V1	V2

'W' VALLEY (V1)
2 ROWS BUTYL MASTIC TAPE ASC'S LIGHT
GAUGE ROOFING

INSTALL EMSEAL CLOSURES DIAGONALLY ACROSS THE BOTTOM SIDE OF THE PANEL AND
SET IN SEALANT ALL AROUND

2.

#14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

Procedures
Place a second layer of 36" roof felt in the valley center line with 18" of roof felt on each side .
Starting at the low end, trim and place the valley flashing so it overhangs the eaves 1" . (see page 14)
Caulk and lap the subsequent valley flashings a minimum of 8" .
Parallel to the valley, place two rows of 1⁄2" butyl mastic tape sealant spaced as shown .
The polyethylene closures cannot be installed diagonally across a panel . At mitre cuts, use emseal closures at a right angle to the panel ribs .
Field cut the panels holding a minimum of 4" back from the valley as shown . Larger valleys without the center “V”, may be required in snow country installations .

Attach the panels to the roof and ‘thru-fasten’ along the bottom end using a #14 x 1" woodscrew
at 8" up from the valley aligned with the second row of butyl mastic tape .
When valleys are required, install sidelap neoprene mastic tape along the sidelap a minimum of 10'-0" up from the panel edge .

Note: In areas where snow, ice and heavy rain con- ditions exist, panels may need to be held back more than 4" and the valley flashing overall width must be increased. A high temperature cold-applied rubberized
underlayment should be used extending at least 3' up from the center of the valley on each side.

SEE VALLEY (PAGE 13) FOR
FASTENING & SEALING REQUIREMENTS

1"

FILL END WITH SEALANT
EAVE

Valley Termination

VALLEY

FOLD TABS DOWN 90˚

1"

REMOVE THIS MATERIAL

Note: Emseal closures not shown for clarity.

Eave and Vented Eave Flashings
This flashing must be installed prior to the panels .

1 1/2"

3"

1/2"

2"

4 3/8"

1/2"

1 3/8"

1 3/8"

1/2"

2"

2"

1/2"

3"

3"

1/2"

E1	E2	E3	E4	E5

2"

3-3/8"

1/2

3/8" HEM

ER1	ER2

"

"

3"

4-3/8"

1/2

3/8" HEM

ASC'S LIGHT GAUGE ROOFING

2. #14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND
ROOFING NAILS @ 24" O.C.

EAVE (E1)

2X BLOCKING
PERFORATE FASCIA AS REQUIRED

Vented Eave

Procedures
Carpentry must be completed as indicated prior to installation of the Vented Eave .
Attach the eave flashing using roofing nails evenly spaced at 24" o .c .

Caulk and lap the flashing a minimum of 3" .
(see page 45)
Panels should overhang the eave 1" minimum .

Eave Flashing Preparation
Use this flashing where eave meets gable

Note: Length of eave must allow 1" to extend past gable fascia.

STEP 1

REMOVE THIS MATERIAL

EAVE

REMOVE THIS MATERIAL

STEP 2

EAVE

BEND TABS HERE @ 90˚

Gutter and Vented Gutter Flashings
Note: This flashing must be installed prior to the panels .

1 3/8"

1 3/8"   E3

1/2"

ROOFING NAILS	 	 @ 24" O.C.

2.	#14 WOOD SCREW SEE ILLUSTRATION

ON PAGE 7

PERFORATE FASCIA AS REQUIRED
2X BLOCKING

BOTTOM POLYETHYLENE

@ 12" O.C.

CLOSURE SET IN SEALANT MASTIC TAPE, TOP & BOTTOM

EAVE (E3)

METAL SCREEN AS REQUIRED

ATTACH PER MANUFACTURER'S RECOMMENDATIONS

GUTTER

Vented Gutter

Procedures
Felt should go over top of eave (E3) (felt not shown) .
Carpentry must be complete as indicated prior to installation of the Vented Gutter .
Attach eave flashing using roofing nails evenly spaced at 24" o .c .

Caulk and lap the flashing a minimum of 3" . (see page 45)
Panels should overhang the eave a minimum of 1" .
ASC Building Products recommends that a licensed gutter contractor install gutters .

Gable Flashing

4"

5"

5/8"

1 1/8"

3/8" HEM

5/8"

3/8" HEM

G1

4"

2 3/4"

1/2"	G3

1 1/4"

1/2"

3/8" HEM

2"

1-1/8"

4"

5/

3/8" HEM

G4

1/2"

8"

3.

4.

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" LAP SELF DRILLER @ 24" O.C.

GABLE (G4)

#14 WOOD SCREW @ 24" O.C.
ASC'S LIGHT GAUGE ROOFING

2.

#14 x 1" METAL WOOD
@ 24" O.C.

BUTYL MASTIC TAPE

Procedures
Place the first roof panel according to the instructions on pages 4 and 8 .
Place butyl mastic tape along the top of the panel rib as shown .
Install the gable flashing by placing it firmly over the rib . Use stitch screws to fasten flashing to the panel and use color matched woodscrews at 24" o .c . to fasten flashing to structure .
Caulk and lap the flashing a minimum of 3" .
(see page 45)

Mitre cut the flashing at the peak to join each side at the ridge . (see page 21)
Snip and fold the gable at the eave to close the end . Use rivets to fasten .

Notes:	“G1” is a standard gable. Narrower gables, “G3” and “G4”, are also available.

Gable/Ridge Transition
(similar to Endwall)

GABLE OR SIDEWALL

BUTYL MASTIC TAPE

2"

WITH FASTENERS @ 2" O.C.

RIDGE OR ENDWALL

Gable Corner at Eave

ASC'S LIGHT GAUGE ROOFING

GABLE

BEND HERE 90˚

RIVET

INSERT EAVE TAB BEHIND GABLE

EAVE

Gable Flashing Preparation

STEP 1

Roof Pitch	Dimension	
3:12	2"	
4:12	17⁄8"	
5:12	111⁄16"	
6:12	16⁄16"	
12:12	5⁄8"	

GABLE

REMOVE THIS MATERIAL

1 1/2"

* SEE TABLE FOR DIMENSION

STEP 2

1 1/2" SNIP HERE

STEP 3

1"

Note: Length of uncut gable must extend 21⁄2" past eave fascia.

GABLE

SNIP HERE

REMOVE THIS MATERIAL

1"

GABLE

FOLD 90˚

REMOVE THIS MATERIAL

Gable Flashing Preparation at Ridge

STEP 1	STEP 2

REMOVE THIS MATERIAL WITH SNIPS OR POWER SHEARS

RIDGE LINE

VERTICAL CUT

REMOVE THIS MATERIAL WITH SNIPS OR POWER SHEARS

* SEE TABLE

Roof Pitch	Dimension*	
3:12	11⁄16"	
3 .5:12	11⁄4"	
4:12	17⁄16"	
5:12	13⁄4"	
6:12	23⁄16"	
12:12	47⁄16"	
* Dimensions only apply to G4 Gable Flashing

STEP 3	STEP 4

RIDGE LINE
GABLE

RIVET

GABLE

REMOVE THIS MATERIAL WITH SNIPS OR POWER SHEARS

b

a

PF2

Peak Flashing

PF2 Roof Pitch	Dimension a	Dimension b	
3:12-5:12	5-3/8"	5-1/4"	
6:12-8:12	6"	5-3/4"	
9:12-10:12	6-1/2"	6-1/4"	
11:12-12:12	7-1/8"	6-5/8"	

Procedures
Fasten roofing panel to substrate at peak .

Notes:
1 . Peak flashing dimensions noted on this installation detail based on nominal 1” thick wall facing . Different wall panel thicknesses may require some adjustments to peak flashing dimensions and/or positioning of roof assembly components .
2 . Additional blocking may be required at peak to support peak flashing .

Caulk the bottom and sides of top-side closure and place near peak . Locate closures where they will be hidden underneath peak flashing .
Apply caulk along top of closure, and fasten peak flashing using stitch screws at every panel rib location .
Caulk, lap, and rivet sequential flashings (see pg . 45) .
Close the ends of the peak at gable ends by slitting and folding material at each end, caulking joints, and fastening with rivets .

b

a

PF3

Vented Peak Flashing

C1

PF2 Roof Pitch	Dimension a	Dimension b	
3:12-5:12	6-3/4"	7”	
6:12-8:12	7-1/2”"	7-7/8”	
9:12-10:12	8-1/4”"	8-5/8"	
11:12-12:12	9"	9-1/4"	

Procedures
Substrate should be held back 2” from the peak .
Locate the panels at the top end of the substrate . Install C-metal onto end of panel and fasten panel and C-metal into place . Check panel positioning at eave before fastening .
Insert top-side closure onto panel, at C-metal location .
Attach the screen at each panel rib, sandwiching the topside closure in place . Ensure screen is pulled tight to avoid sagging .
Fasten the vented peak flashing using stitch screws at panel rib locations .

Caulk, lap and rivet sequential flashings (see page 45) .
Close the ends of the peak at gable ends by cutting and folding material at each end . Fasten with rivets and caulking joints . (see page 12) .

Notes:
1 . Peak flashing dimensions noted on this installa-
tion detail are based on nominal 1” thick wall facing . Different wall panel thicknesses may require some adjustments to peak flashing dimensions and/or posi- tioning of roof assembly components .
2 . Additional blocking may be required at peak to support peak flashing .

Sidewall Flashing
This flashing must be installed prior to wall panels .

4"

1-1/8"

3"

3/8
5/8

1/2"

4"	1/2"

1 1/8"

2"
SW1

3/4"

SW2

HEM "

ROOFING NAILS  	 @ 24" O.C.

2.

#14 x 1" WOOD SCREW SEE ILLUSTRATION
ON PAGE 7

ASC'S LIGHT GAUGE WALL PANEL

 	 BOTTOM POLYETHYLENE CLOSURE
SET IN SEALANT ALL AROUND UNIVERSAL SIDEWALL (SW1)
BUTYL MASTIC TAPE

ASC'S LIGHT GAUGE ROOFING

#14 WOOD SCREW @ 24" O.C.

Procedures
The roof should be installed prior to the siding .
Place butyl mastic tape along the top of the panel as shown .
Install the side wall flashing by placing it firmly on the roofing panel and fastening with the
fastener indicated .
Caulk and lap the flashing a minimum of 3" .
(see page 45)

Endwall Flashing
This flashing must be installed prior to wall panels .

1 1/8"

4"

2"

1/2"

EW1

4"
5"

1/2"

3/4"

EW2

3/8" HEM

ROOFING NAILS  	 @ 24" O.C.

 	  ASC'S LIGHT

GAUGE WALL PANEL

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

2.

#14 x 1" WOOD SCREW SEE ILLUSTRATION
ON PAGE 7

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" LAP SELF DRILLER @ EACH RIB OR 8" O.C.
FOR CORRUGATED UNIVERSAL ENDWALL (EW1)
ASC'S LIGHT GAUGE ROOFING

2.

#14 x 1" WOOD SCREW SEE ILLUSTRATION
ON PAGE 7

TOP POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

Procedures
Install sealant on the bottom and top of the polyethylene closure . Set the closure as shown above .
Fasten the end wall flashing to the wall with roofing nails at 24" o .c .
Caulk and lap the flashing a minimum of 3" .

Vented End Wall Flashing
This flashing must be installed prior to wall panels .

6 3/4"
4"

1 7/8"

EW17

1 1/8" 	

3/8" HEM

ROOFING NAILS
@ 24" O.C.

2.

#14 x 1" WOOD SCREW

 	  ASC'S LIGHT
GAUGE WALL PANEL

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

VENTED ENDWALL (EW17)

#12 x 3/4" STITCH SCREW

SEE ILLUSTRATION ON PAGE 7

OPTIONAL FIBER FILL	  
FOR SNOW COUNTRY	  

OR
#14 x 7/8" LAP SELF DRILLER @ EACH RIB OR 8" O.C.
FOR CORRUGATED
BUTYL MASTIC TAPE
ASC'S LIGHT GAUGE ROOFING

2.

#14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

  2"

SCREEN BY OTHERS
TOP POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

Procedures
Substrate should be held back 2" from the wall .
Install sealant on the bottom and top of the polyethylene closure . Set the closure as shown above .
Fasten the end wall flashing to the wall with roofing nails at 24" o .c . max .
Fasten the flashing to each rib with #12 x 3⁄4" stitch screws . Place a small length of sealant on top of each rib as shown .

•	Caulk and lap the flashing a minimum of 3" .
(see page 45)
For Profile Vent, use (EW1) for vented endwall flashing detail .

Slope Transition - High Slope to Low Slope
This flashing must be installed prior to uphill panels .

SPECIFY ANGLE
5"	6"

PB3

3/8" HEM

ROOFING NAILS @ 24" O.C.

2.	#14 WOOD SCREW SEE ILLUSTRATION

ON PAGE 7

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

ROW OF BUTYL MASTIC TAPE

WOOD BLOCKING

#14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

PITCH BREAK (PB3)

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" LAP SELF DRILLER @ EACH RIB OR EVERY THIRD RIB FOR CORRUGATED
ASC'S LIGHT GAUGE ROOFING

TOP POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

Procedures
Install sealant on the bottom and top of the polyethylene closure . Set the closure as shown above .
Fasten the transition flashing to the substrate with roofing nails at 24" o .c .
Caulk and lap the flashing a minimum of 3" .

Parallel to the transition, place one rows of 1⁄2" butyl mastic tape as shown above .
Attach the uphill panels as shown .
Install wood blocking as needed for support .
Place a small length of sealant on the top of each rib as shown .

Slope Transition - Low Slope to High Slope
This flashing must be installed prior to uphill panels .

5"
6"

SPECIFY ANGLE

PB4

3/8" HEM

ASC'S LIGHT GAUGE ROOFING
ROOFING NAILS @ 24" O.C.

#14 x 1" WOOD SCREW SEE ILLUSTRATION
ON PAGE 7

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND
1"

ROW OF BUTYL MASTIC TAPE

WOOD BLOCKING

#14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

PITCH BREAK (PB4)

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" LAP SELF DRILLER @ EACH RIB OR EVERY THIRD RIB FOR CORRUGATED

TOP POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

Procedures
Install sealant on the bottom and top of the polyethylene closure . Set the closure as shown above .
Fasten the transition flashing to the substrate with roofing nails at 24" o .c ., prior to installing the uphill panels .
Caulk and lap the flashing a minimum of 3" .
(see page 45)

Parallel to the transition, place one rows of 1⁄2" butyl mastic tape as shown above .
Attach the uphill panels with a 1" overhang .
Install wood blocking as needed for support .
Place a small length of sealant on the top of each rib as shown .

Chalet Gable Flashing
This flashing must be installed prior to panels .

3/4"

1 5/8"

3 7/8"

5/8"

6"

3/8" HEM

G18

End of mitre-cut panel (See Roof Map page 5)

5"

SLOPE

2 1/2"

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND
ASC'S LIGHT GAUGE ROOFING

CHALET GABLE (G18)

2.

#14 x 1" WOOD SCREW
@ 24" O.C.

2. #14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7
ROW OF MASTIC TAPE

* THIS FLASHING IS ALSO KNOWN AS A "PROW" OR "DUTCH" GABLE ROOF.

Procedures
Attach the chalet flashing using color matched woodscrews spaced at 24" o .c .
Parallel to the face of the flashing, place 1⁄2" butyl mastic tape as shown .
The polyethylene closures cannot be installed diagonally across a panel . At mitre cuts, use emseal closures at a right angle to the panel ribs .
Field cut the panels holding 5" back from the face of the flashing as shown .

• Attach the panels to the roof and ‘thru-fasten’ along the bottom edge using #14-10 woodscrews with washer evenly spaced at 4" o .c . and at approximately 71⁄2" in from the face of the flashing so they align with the second row of tape sealant .
• Chalet gable to be used with standard eave “E1” .
(see page 15)

Adjustable Gable Flashing

2 1/2"

6"

4"

G5

1/2"

1" HOOK
3/8" HOOK

SS1

ASC'S LIGHT GAUGE ROOFING

2. #14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

ROOFING NAILS @ 12" O.C.

ADJUSTMENT AREA

STARTER STRIP (SS1)

FIELD CAULK

#14 x 1" WOOD SCREW @ 24" O.C.

ADJUSTABLE GABLE (G5)

Procedures
•	In many instances, the roof sheet will have to be field modified (major rib removed along the gable) . See roof map on page 5 and locate “adjustable gable" . If gable trims are used in this location, and as the roof drains from the ridge, water will flow inside the gable trims shown on page 18 . The adjustable gable trim pieces shown above can assist in a proper roof installation .
•	When a major rib on a Light Gauge panel occurs over the roof area within 3" of the edge of the gable, cut the panel and remove the major rib from the end of the sheet from the low eave to allow for the placement of the starter strip .

Install the gable trim, extending the horizontal leg 6" uphill and underneath the eave on the portion of the roof sheet at the gable/eave intersection .
Locate the placement of the starter strip to insure that the cut edge of the roof sheet can be inserted into the 1" leg of the starter strip .
Field caulk inside the open hem and the under side of the starter strip per the detail on this page and install parallel to gable .

Note: Locate starter strip to allow proper installation of adjustable gable trim as shown.

Vent Flashing

VENT / PIPE FLASHING

FASTEN @ 1" O.C.

OF PANEL

GUNNABLE CAULK
IN CAPILLARY GROOVE

SEE PROCEDURES BELOW

RO

ILLUSTRATION #5

Procedures
Trim the opening in the flashing to 20% smaller than the pipe diameter .
Slide the flashing down over the pipe .
Seal between the vent flashing and the roofing with gunnable caulk and set the flashing .
Form the flashing to fit the profile of the roof .
Fasten the flashing with fasteners at 1" o .c . Refer to the fastener selection guide on page 7 .
Penetrations occurring over spaced supports require additional support framing .

Note: For the best drainage when a square-based  pipe flashing is used, one corner of the flexible pipe flashing should be oriented to the high-side of the roof.

A stainless steel draw band should be installed at the top of the vent/pipe flashing .

A minimum drainage area of 2" should be‚ maintained between the base of the flexible vent/ pipe flashing and the roof panels’ major ribs .
When a penetration occurs through a panel sidelap, gunnable caulk needs to be installed in the capillary groove from the penetration to the ridge . This
will prevent water from running downhill in the capillary groove and into the roof opening . Refer to illustration #5, above .

Vent/Pipe Flashing Installation Procedure

STEP 1: Cut
Cut to pipe diameter marked on Flashers (this is approximately 20% smaller than the diameter of the pipe) .

STEP 2: Slide
Slide the Flashers down the pipe, using water to lubricate if necessary .

STEP 3: Form
Form and bend the aluminum base of the Flashers to fit the surface of the roof .

 	

STEP 4: Seal
Seal the Flashers by applying urethane/silicone sealant between the Flasher and the roof . Use a large slot screwdriver to press the base down tightly .

STEP 5: Fasten
Fasten the Flashers with weather- resistant fasteners to complete the seal .

Note: For the best drainage when  a  square-based pipe flashing is used, one corner of the flexible pipe flashing should be oriented to the high-side of the roof.

LENGTH

WIDTH

2.

UPHILL
SEE PAGE 34

3.
DOWNHILL SEE PAGE 35

1. SIDE

SEE BELOW

Skylight Flashing

Note: Do not fasten the panels within 24" uphill from the skylight until the penetration flashing is
installed.

Wherever possible, position the skylight curb so the ribs of the roof panels do not interfere with the flashing .
Cut the light gauge roof panels as close to the left, right and downhill sides of the curb as possible . Cut the uphill side 6" up from the curb as indicated above .
Penetrations occurring over spaced supports require additional support framing .

1

– Skylight Flashing (Side)

2"

SIDE SKYLIGHT (SK18)
2.	#14 WOOD SCREW @ 4" O.C.
BUTYL MASTIC TAPE
ASC'S LIGHT GAUGE ROOFING

3 1/2"

 

SK18
(Side)

3/8" HEM

2

– Skylight Flashing (Uphill Side)

3 1/2"

12"

SK16
(Uphill)

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND
ASC'S LIGHT GAUGE ROOFING

UPHILL SKYLIGHT (SK16)

2.	#14 WOOD SCREW
@ EACH SIDE OF EACH RIB OR 8" O.C. FOR CORRUGATED

6" MIN

3

– Skylight Flashing (Downhill Side)

5"

2 1/2"

3/8" HEM

SK17

3.

(Downhill)

#12 x 3/4" STITCH SCREW @ EACH RIB OR 8" O.C. FOR CORRUGATED

TOP POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND
DOWNHILL SKYLIGHT (SK17) ASC'S LIGHT
GAUGE ROOFING

2. #14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

Procedure for the Installation of Skylight Flashings

SKYLIGHT ASC'S LIGHT
GAUGE ROOFING

The skylight flashing will be 4" wider than the width of the curb (2" on each side).
Cut a 1⁄8" slot in the two uphill corners of the Light Gauge Roofing Panel slightly wider than 2", so the uphill flashing can slide through the two slots.
(See illustration #6).
Adjustments to the horizontal leg dimension and length of slit may have to be modified depending on the location of the panels’ major rib.

6"

ILLUSTRATION #6

Skylight Flashing Preparation

RIGHT SIDE

2 1/16"

0˚

2"

CUT HERE

2 1/2"

2"

CUT HERE

DOWNHILL

FOLD HERE 9

UPHILL

REMOVE THIS MATERIAL

CUT HERE

Trim and bend the right side skylight flashing as indicated. Trim the left side in a similar fashion.

Skylight Flashing Preparation (continued)

2"

1"

FOLD HERE 90˚
CUT HERE
REMOVE THIS MATERIAL

UPHILL

CUT HERE

1"

DOWNHILL

FOLD HERE 90˚

REMOVE THIS MATERIAL

CUT HERE

REMOVE HEM TO FOLD LINE

Trim both ends of the uphill and downhill sides of the skylight flashing as indicated .
Slide the uphill flashing into the slots of the Light Gauge Roofing and apply liberal amount of gunnable caulking .
Assemble the skylight as indicated on pages 34-37.
Trim and assemble chimney flashing similarly .

WIDTH

LENGTH

22. .

UPHILL
SEE PAGE 40

33. .
DOWNHILL SEE PAGE 41

11..  SIDE

SEE PAGE 39

Chimney Flashing

Note: Procedures for the installation of chimney flashings are similar to the skylights. (see pgs. 34-37). The reglet** shown may be deleted if the chimney is clad with siding. (Lap the siding over the flashing and
caulk). Be sure to specify the slope and the orientation of the chimney dimensions when ordering this assem- bly.
** A reglet is a two-piece flashing found on the side of a wall, chimney or other similar roof penetration.
(see flashing drawing page 40).

1

– Chimney Flashing (Side)

3/8" HEM

1/2"

3"

3/4"

2"

6"

CH18
(Side)

3/8" HEM

3/8" HEM

RG16
(Reglet)

GUNNABLE CAULK ANCHOR BY OTHERS
REGLET (RG16) GUNNABLE CAULK
SIDE CHIMNEY (CH18) BUTYL MASTIC TAPE
ASC'S LIGHT GAUGE ROOFING

2.	#14 WOOD SCREW @ 4" O.C.

2

– Chimney Flashing (Uphill)

6"

3/8" HEM

12"

3/8" HEM

1/2"

3"

3/4"

CH16
(Side)

RG16
(Reglet)

GUNNABLE CAULK ANCHORS BY OTHERS
REGLET (RG16) GUNNABLE CAULK
UPHILL CHIMNEY (CH16)

BOTTOM POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND
ASC'S LIGHT GAUGE ROOFING

#14 WOOD SCREW
@ EACH SIDE OF EACH RIB OR 8" O.C. FOR CORRUGATED

6" MIN

3

– Chimney Flashing (Downhill)

1/2"

3"

3/4"

3/8" HEM
5"

5"

3/8" HEM
CH17
(Downhill)

RG16
(Reglet)

3/8" HEM

GUNNABLE CAULK ANCHORS BY OTHERS
REGLET (RG16) GUNNABLE CAULK
#12 x 3/4" STITCH SCREW
@ EACH RIB OR 8" O.C. FOR CORRUGATED
TOP POLYETHYLENE CLOSURE SET IN SEALANT ALL AROUND

DOWNHILL CHIMNEY (CH17) ASC'S LIGHT
GAUGE ROOFING

2. #14 WOOD SCREW SEE ILLUSTRATION PAGE 7

Valley Top End

FIELD MITER AND ASSEMBLE

USE EMSEAL CLOSURE TO CLOSE OFF VALLEY FLASHING

ASC'S LIGHT GAUGE ROOFING

ROOFING NAIL
2 ROWS OF BUTYL MASTIC TAPE

VALLEY (V1)

INSTALL EMSEAL CLOSURES DIAGONALLY ACROSS THE BOTTOM SIDE OF THE PANEL AND
SET IN SEALANT ALL AROUND

Valley Dormer

FIELD MITER AND ASSEMBLE
ONTO FLAT STOCK

USE EMSEAL CLOSURE
TO CLOSE OFF VALLEY FLASHING

ASC'S LIGHT GAUGE ROOFING

ROOFING NAIL
2 ROWS OF BUTYL MASTIC TAPE

VALLEY (V1)

INSTALL EMSEAL CLOSURES DIAGONALLY ACROSS THE BOTTOM SIDE OF THE PANEL AND
SET IN SEALANT ALL AROUND

Panel End Lap

BUTYL MASTIC TAPE OR  	 GUNNABLE SEALANT

ASC'S LIGHT GAUGE ROOFING

2. #14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

Long Panel End Lap
For panels 28 ft . or longer

#10-12 x 1" PANCAKE HEAD

2 ROWS BUTYL MASTIC TAPE OR GUNNABLE SEALANT

ASC'S LIGHT GAUGE ROOFING

2. #14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

Note: Use this detail so that panels can expand and contract independently.

Sealing End Laps & Lapping the Hems
Typical Flashing Lap

SNIP HERE

STEP 1

1/8"

OP FL US SC

3"

REMOVE THIS MATERIAL FROM THE 'INSIDE' FLASHING ONLY.

EN THE HEM OF BOTH ASHINGS TO BE JOINED ING A SCREWDRIVER OR RATCH AWL.

STEP 2

3"

CAULK AND RIVET AS REQUIRED

2"

RE-CLOSE HEMS WITH 'DUCKBILL' PLIERS

Note: Flashing expansion joints may be required for long flashing runs (i.e. 40 ft. +).

Wall Details
Window/Door Trim Corner

1"

1/

3/8" HEM

2"

7/8"

2 1/8"

3/8" HEM	 		 		2"

1"
C1	B1

C-METAL (C1) OR BASE TRIM (B1) FOR CORRUGATED

ASC'S LIGHT GAUGE WALL PANEL

1.

2.

#9 WOOD SCREW OR
#14 WOOD SCREW @ 24" O.C. MAX

C-METAL (C1)

GLAZING AND WINDOW FRAME BY OTHERS

Procedures
When installing Light Gauge panels, “B1”, the Drip Flashing, is preferred at the head .
A horizontal cut, 1" long, needs to be made in the wall panel at the intersection of the jamb and head trim . Extend the head trim into this slot, allowing for proper drainage to the outside of the building .

Note: “C1” is shown at head location. “B1”, Base Trim, can also be used.

Concealed neoprene closures left out for clarity . Place inside closure behind panel at C-metal (C-1) or base trim (B1)

Wall Details
Top and Bottom Trim

1"

1/

3/8" HEM

2"

7/8"

2 1/8"

3/8" HEM	 		 		2"

1"

C1	B1

TOP OF WALL

3.

4.

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" SELF DRILLER
@ EACH RIB OR EVERY 8" O.C. FOR CORRUGATED

C-METAL (C1)
(If required)

1.

2.

#9 WOOD SCREW OR
#14 WOOD SCREW @ 24" O.C. MAX

BASE TRIM (B1)
(If required)

 	  ASC'S LIGHT
GAUGE WALL PANEL

BASE TRIM (B1)

C-METAL (C1)

Procedures
Open framing shown . If installing over plywood/OSB, use a #14 x 1" woodscrew for panel attachment .
Concealed neoprene closures left out for clarity . Place bottom closure behind panel at base trim and top closure on top of sheet behind “C1” at panel top, if required .

Wall Details
Inside Corner

3/8" HEM

4"

 	   	 5/8"

1 1/8"

3/8" HEM

3/8" HEM

3 1/2"

IC2

3 1/2"

IC1

BUTYL MASTIC TAPE

ASC'S LIGHT  	 GAUGE WALL PANEL

3.

4.

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" LAP SELF DRILLER @ 24" O.C. MAX

INSIDE CORNER (IC1)

1.
2.

#9 WOOD SCREW OR
#14 WOOD SCREW
SEE ILLUSTRATION ON PAGE 7

Procedures
Open framing shown . If installing over plywood/OSB, use a #14 x 1" woodscrew for panel attachment .
Nor-Clad® panel shown . When installing other Light Gauge panels, use the Universal Inside Corner “IC2” .

In many situations, the last panel installed at the
corner will require that the panel be cut in width . Allow the cut edge to be covered by the inside corner trim .

Wall Details
Outside Corner

1 1/8"

4"

3/8" HEM

3/8" HEM

3 1/2"

3/8" HEM

5/8"

OC1

3 1/2"

OC2

BUTYL MASTIC TAPE

ASC'S LIGHT  	 GAUGE WALL PANEL

1.
2.

#9 WOOD SCREW OR
#14 WOOD SCREW SEE ILLUSTRATION ON PAGE 7

OUTSIDE CORNER (OC1)

3.
4.

#12 x 3/4" STITCH SCREW OR
#14 x 7/8" LAP SELF DRILLER @ 24" O.C. MAX

Procedures
Open framing shown . If installing over plywood/OSB, use a #14 x 1" woodscrew for panel attachment .
Nor-Clad® panel shown . When installing other Light Gauge panels,use the Universal Outside Corner “OC2” .

In many situations, the last panel on each side will project beyond the building corner, requiring the panel to be cut in width . Allow the cut edge to be covered by the outside corner trim .

Manufacturing Facilities:

Anchorage, Alaska
2441 Cinnabar Loop
Anchorage, AK 99507

West Sacramento, California 2110 Enterprise Boulevard West Sacramento, CA 95691
Salem, Oregon
4063 Salem Industrial Drive NE Salem, OR 97303
Customer Service Center 800-272-7023 • 503-390-7174

Spokane, Washington
4111 East Ferry
Spokane, Washington 99202 Customer Service Center
800-776-8771 • 509-536-4097

Corporate Headquarters:

ASC Profiles
2110 Enterprise Boulevard West Sacramento, CA 95691

Visit us at our website:
www.ascbp.com

All information stated in the guide is correct at time of printing and subject to change without notice, check our website for the latest version .
©2008-2019 ASC Profiles LLC	0419 Printed in the USA ZINCALUME® is a registered trademark of BlueScope Steel Ltd . web (BR128)