ASM 10.1.1 Eave and Rake Flashing (Mechanical Seam)

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ASM 10.1.1 Eave and Rake Flashing (Mechanical Seam)

Division D - Construction Details

ASM 10.1.1 Eave and Rake Flashing (Mechanical Seam)

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Images used in a Construction Detail are representative and not prescriptive. Nor are they necessarily drawn to scale. Rather, they are provided to visually convey the requirements of the Standard they represent. Unless otherwise required by the Standard, dimensions, the selection of materials and their application remains the responsibility of the Design Authority.

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SBS Details

ASM 10.1.1 Eave and Rake Flashing (Mechanical Seam).jpg

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Print Sheet


(1) Separation membrane
Separates the deck and the metal edge flashing.
(2) Hook securement strip
(3) Continuous eave metal flashing
(4) Eave protection
One ply of self-adhered modified bituminous underlayment material. Lap 50 mm (2") minimum on sides and 100 mm (4") minimum on ends.
(5) Underlayment
Applicable for all Architectural Sheet Metal systems. For slopes less than 1:3, the entire roof slope must be covered with a self-adhered underlayment.
(6) Ventilation material
A ventilation space is required on slopes less than 1:3; entangled mesh (shown) may be used as void fill. The ventilation space facilitates drying as condensation forms on the underside of the metal panels.
(7) Metal panel clip
Installed in keeping with the metal roof panel manufacturer's printed instructions. Install on EPDM pad (not shown) or use a tall clip sized to support the panel on top of the ventilation layer.
(8) Architectural metal roof panel
(9) Girt
Used to secure standing profile rake edge flashing. Secure girt to deck, through metal panel, and embed girt in two parallel beads of untooled sealant or rows of butyl.
(10) Outside Securement clip
Secures standing profile rake edge flashing. Hook clip over standing seam and mechanically fasten clip to outside face of roof.
(11) Standing profile rake edge flashing


(A) Acceptable deck
(B) Fascia Board

NOTE: See the Standard for additional requirements.

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