Table of Contents
Section	Page
Notes to Designer/User	2
Map of Typical Roof Conditions	3
Fastener Placement	4
Fastener Selection	5
Box-Rib®, Reversed Box Rib®, HR-36®, Reversed HR-36®, Mini-V-Beam®, and PBR Details
Ridge/Hip Flashing	6
Valley Flashing	7
Eave Flashings	8
Gutter Flashings	9
Gable Flashings	10
Peak Flashing	11
Sidewall Flashings	12
Endwall Flashing	13
Panel End Lap	14
Window/Door Trim	15
Drip Edge/Wall Step, Panel Top	16
Inside Corner	17
Outside Corner	18
Nu-Wave® Corrugated & U-Panel Details
Ridge/Hip Flashing	19
Valley Flashing	20
Eave Flashing	21
Gutter Flashing	22
Gable Flashing	23
Peak Flashing	24
Sidewall Flashing	25
Endwall Flashing	26
Base Trim Detail	27
“C” Trim Detail	28
Inside Corner	29
Outside Corner	30
Custom Flashing Worksheet	31
Quadrille Workspace	32

Notes to the Designer/User
The details contained in this packet are intended to be a design aid and do not depict all situations. Modifications are the responsibility of the designer/user and should take into account climate conditions such as wind and snow, governing code requirements, and the actual usage and maintenance of the structure. Where possible, roof panel side laps and flashings should be lapped away from prevailing winds. Certain flashings should be supported if it is likely that a ladder will be used against them or if foot traffic is anticipated. Check with AEP Span any time you intend to specify a prefinished flashing in a gauge different than the panels. It is good practice to specify that all flashings be of the same material as the panels (gauge, color, finish) to ensure long-term durability. Field- painted flashings rarely equal the durability and color fastness of factory baked-on paint systems. Where possible, we have hemmed the edges of flashings to strengthen them and to minimize the exposure of cut edges.
Framing
The details contained in this guide are shown with panels attached to spaced support members.
Slope requirements
It is suggested that all panels in this booklet be used on slopes of 1:12 or greater, except Nu-Wave Corrugated and U-Panel which have a 3:12 minimum slope requirement.
Condensation, Insulation & Ventilation
It is the designer’s responsibility to determine the need and composition of condensation control materials including insulation and vapor retarders, as well as ventilation requirements. Metal roofing is susceptible to condensation and its control should be carefully considered.
Valleys
Valley dimensions must be the proper width to account for slope, snow, ice, and rain conditions. If valleys are not kept free of debris, water can back up and intrusion may occur under the panels.
Snow Design
If possible, valleys, gutters, roof elevation changes and penetrations should be minimized or eliminated in snow areas. Roof penetrations should be located as close to the ridge or peak of the roof as possible to minimize accumulations of ice and snow.
Oil-Canning
Flat metal surfaces will display waviness commonly referred to as “oil-canning”. This is caused by steel mill tolerances, variations in the substrate and roofing underlayments. Oil canning is a characteristic, not a defect, of panels manufactured from light- gauge metal. Coils are factory “corrective-levelled” prior to
rollforming to minimize oil canning. Oil canning is not a cause for panel rejection. Additional information is available upon request.
References
The Sheet Metal and Air Conditioning Contractors’ National Association Inc. (SMACNA) manual is an excellent reference for sheet metal contractors. Its guidelines for underlayments, gutter and downspout size requirements, and expansion/contraction of metals and flashings joints should be followed.

Technical Assistance
Call your AEP Span Sales or Technical Representative for additional information on any of these subjects.
Definitions
Sealant: Gunnable-grade single-component polyurethane

Mastic: Butyl mastic tape or butyl sealant

Hem: A 180˚ bend that is closed (or as closed as the formability of the metal will allow) to provide a uniform, attractive edge. High tensile strength (Grade 80) steel must be formed with a “teardrop hem” as shown to avoid cracking the steel at the	bend. Lower
tensile	steels can be
flattened	close.

Hook: (also called an “open hem”) A 180˚ bend on a piece of sheet metal that is left open to allow insertion of another piece of sheet	metal. For
example,	the hook
shown is	used to hold
the trim piece to a cleat below the trim.

Note: 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: (EW6) . These part numbers have been provided to the user to make ordering these flashing parts quick and easy.

Underlayments:
Prior to installation of metal roofing panels, it is recommended that an underlayment be installed over the roof substrate. AEP Span encourages the use of AEP Span Underlayment HT as it is designed specifically for use under all AEP roofing systems and is suitable for use under any metal roofing system or coping. AEP Span Underlayment HT is required by AEP Span for AEP Span
Full System Weathertightness Warranties. AEP Span Underlayment HT is a high temperature, self-healing, self-adhering, peel and stick underlayment with a non-abrasive surface that will not mar, scratch, or abrade the underside of metal panels and flashings. Please note that additional protection may be required to meet Class A fire ratings as defined in UL790 classified assemblies

Map of Typical Roof Conditions

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

Flashing	Page(s)
Eave	8, 21
Endwall	13, 26
Gable	10, 23
Gutter	9, 22
Panel Endlap	14

Flashing	Page(s)
Peak	11, 24
Ridge/Hip	6, 19
Sidewall	12, 25
Valley	7, 20

Fastener Placement

Box Rib™ (36” Coverage) Wall application only

Reverse Box Rib™ (36” Coverage) Roof or Wall application

HR-36® (36” Coverage) Roof or Wall application
Reversed HR-36® (36” Coverage) Wall application only

Mini-V-Beam (32” Coverage) Roof or Wall application

Nu-Wave® Corrugated (342⁄3”coverage) Wall application
 
Nu-Wave® Corrugated (32” Coverage) Roof application

PBR Panel (36” Coverage) Roof or Wall application

Reversed PBR Panel (36” Coverage) Wall application
U-Panel (36” Coverage) Roof or Wall application

Note: 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 substrate . The use of butyl mastic tape along the sidelaps, as shown above, is always recommended for roof panels . Space lap screws @ 18” o .c . maximum .

Fastener Selection

Fastener #		Description	Use	

	
#9 x 1”, 1 1/2”, 2”, 2 1/2”, 3”
Wood Screw 1/4” Hex Head	

Panel to Dimensional Lumber	

	
#14 x 1”, 2” Wood Screw 5/16” Hex Head	
Panel to Plywood Minimum 1/2” thick, structural grade	

	
#12 x 3/4” Stitch Screw
1/4” Hex Head (compatible with #9 wood screw)	

Trim and side lap attachments	

	
#14 x 7/8” Lap Self Driller
5/16” Hex Head (compatible with #14 wood screw)	
Trim and side lap attachments . Attach panels to 18, 20, 22 gauge supports .	

	
STST–42 Stainless Steel Rivet 1/8 x 1/8
*Requires sealant over rivet head.	
Trim-to-trim or trim-to-wall panel attachments	

	
#12 x 1”, 1 1/2”, 2”, 1 1/2” Self Driller 5/16” Hex Head	

Panel to purlin attachments	

Correctly Driven

Under Driven

Over Driven

Proper Installation of Gasketed Fasteners

Notes:
The table above shows the metal buildings panel fasteners provided by AEP Span. Refer to the panel flashing details and fastener placement pages of this manual for specific usage.

Panel attachment screws must be long enough to fully penetrate through the roof decking, 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 .

Roofing nails will also be required, but not furnished by AEP Span. 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 underdrive or overdrive the screws . Recommended drill speed is 2000 rpm . Use of a depth-sensing nosepiece will aid in properly driving screws .

Ridge/Hip Flashing
Box Rib, PBR Panel and HR-36,

Formed Ridge (R7)
PBR Panel

Formed Ridge
HR-36 (R11)
Box Rib (R43)

 

Note:
Maximum pitch with formed ridge 3:12 .

Valley Flashing

Box Rib, HR-36, Mini-V-Beam, and PBR Panel

W-Valley (V6)

*

Note:
Valley dimensions must be the proper width to account for slope, snow, ice and heavy rain conditions . An
underlayment such as a rubberized cold-applied membrane is recommended extending a minimum of 3’-0” up from the center of the valley on each side .

*Special ordered beveled closures available for a specific
pitch/slope .

Eave Flashing
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

Eave (E6)	Sculptured Eave (E7)
optional

Gutter Flashings
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

Box Gutter (GU6)
pre-hung

Box Gutter (GU8)
post-hung

 	

Sculptured Gutter (GU7)
pre-hung

Sculptured Gutter (GU9)

post-hung

Gutter Strap (GS6)

Gable Flashings
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

Gable Trim

(G8)
PBR Panel

Sculptured Gable Trim (G15)

 	 

Gable Trim (G12)

Sculptured Gable Trim (G9)

AEP SPAN SYSTEM ROOF PANEL

1"

1 1/2”

HR-36

Peak Flashings
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

5-1/2" (VARIES)

5" (VARIES)
1/2"

1/2" HEM

1/2" HEM

Peak (PF16)

Sidewall Flashings
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

Sidewall (SW7)

PBR Panel

Sidewall (SW8)

 
RIVET OR PAN HEAD SCREW

Endwall Flashing
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

6"
4 1/2"

1/2" HEM

Endwall (EW6)

Panel Endlap
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

Wall Details Window/Door Trim
3 7/8"	3 7/8"	3 1/2"

 	 	

C-Metal (C-6)
PBR Panel

Jamb Trim (J6)
PBR Panel

C-Metal (C-13)
Nu-Wave Corrugated & U-Panel

3 1/2"	3 3/4"

  	 

C-Metal (C11)
Box Rib & HR-36

C-Metal (C12)
Mini-V-Beam

Wall Details • Drip Edge, Wall Step, Panel Top
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

4 1/8"	"

1 5/8"

3/4

1/2" HEM

Drip Edge (B6)

Wall Details • Inside Corner
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

6 3/4”

6 3/4”

4 1/4”

Inside Corner (IC7)	Inside Corner (IC 11)

Wall Details • Outside Corner
Box Rib, HR-36, Mini-V-Beam, and PBR Panel

6 3/4”

6 3/4”

1 15/16”  

4 3/16”

Outside Corner (OC7)
PBR Panel

Outside Corner (OC11)

 

Ridge/Hip Flashing
Nu-Wave Corrugated & U-Panel

Ridge/Hip (R8)

Note:
Fasteners (except under ridge cap) should be located on tops of corrugations .

Special ordered beveled closures available for a
specific pitch/slope.

Valley Flashing
Nu-Wave Corrugated & U-Panel

*

W-Valley (V6)

Note:
Valley dimensions must be the proper width to account for slope, snow, ice and heavy rain conditions . An
underlayment such as a rubberized cold-applied membrane is recommended extending a minimum of 3’-0” up from the center of the valley on each side .

*Special ordered beveled closures available for a specific
ptich/slope .

Eave Flashing
Nu-Wave Corrugated & U-Panel

Eave (E6)

Gutter Flashing
Nu-Wave Corrugated & U-Panel

Box Gutter (GU6)
pre-hung
Gutter Strap (GS6)

Gable Flashing
Nu-Wave Corrugated & U-Panel

Gable Trim (G19)

Peak Flashing
Nu-Wave Corrugated & U-Panel

Peak (PF16)

Sidewall Flashing
Nu-Wave Corrugated & U-Panel

Sidewall (SW8)

Endwall Flashing
Nu-Wave Corrugated & U-Panel

Endwall (EW6)

Wall Details • Base Trim
Nu-Wave Corrugated & U-Panel

2-1/8"

1"

1/

1/2" HEM

2"

Base Trim (B1)

Wall Details • “C” Trim
Nu-Wave Corrugated & U-Panel

3 1/2”

“C” Trim (C13)

Wall Details • Inside Corner
Nu-Wave Corrugated & U-Panel

Inside Corner (IC2)

Wall Details • Outside Corner
Nu-Wave Corrugated & U-Panel

3-1/2" MIN.

M

1/2" HEM

1/2" HE

3-1/2" MIN.

Outside Corner (OC2)

Custom Flashing Worksheet

e

Example Flashing Shown

d

c

b

Hook (open Hem)

a

Notes:
Girth (stretch-out) = a + b + c + d + e Hooks & Hems count as 2 breaks (bends)

Hem

Custom Flashing Pricing:
Price per inch of girth per lineal ft = $	(in/lft) (provided by AEP Span Rep .)
Total girth of custom flashing = 	 (in)
Slitting charge (required) = $0.13/flashing
Price per break (bend) = $0 .15/break
Number of breaks in custom part = 	
Price per lineal ft = (A x B) + C + (D x E) = 	 ($/lft)

Custom Flashing Weight:
Per unit weights (lb/in/lft): 20ga = 0 .12 22ga = 0 .10 24ga = 0 .08 26ga = 0 .07 Flashing weight = Total girth (B) x per unit weight (above) = 	 (lbs/lft)