ASM Eave and Rake Edges (Copper)

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ASM Eave and Rake Edges (Copper)

Division D - Construction Details

ASM | Eave and Rake Edges (Copper) ( Article and Article

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Images used in a Construction Detail are representative and not prescriptive, and are not necessarily drawn to scale. They are intended to support the related Standard (Ref. Division A, Article

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SBS Details

ASM 10.1.3 Eave and Rake Flashing (Copper).jpg

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Print Sheet


(1) Separation membrane
Separates the deck and the metal edge flashing.
(2) Hook securement strip
In this particular rake edge configuration, a similar strip is installed along the rake to secure the flush rake-edge flashing.
(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 beneath panels
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) Flush rake-edge flashing
Note that panel hooks onto outside edge of flashing, which is mechanically secured to the roof deck.
(9) Architectural metal roof panel


(A) Acceptable deck
(B) Fascia Board

NOTE: See the Standard for additional requirements.

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