Difference between revisions of "ASM Eave and Rake Edges (Mechanical Seams)"

Revision as of 21:57, 26 July 2021

Notice to Reader
Images used in a Construction Detail are representative and not intended in their representation of an assembly to be prescriptive. Nor are they necessarily drawn to scale. Rather, they are provided to visually convey the Standards, Guiding Principles and Recommendations of the RoofStar Guarantee Standards for a Waterproofing or Water-shedding System. Actual design with respect to dimensions, the selection of materials and their application remains the responsibility of the Design Authority. The full text of applicable RoofStar Guarantee Standards may be read by using the blue hyperlinks

SBS Details

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(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

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.

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