Draft CD 7

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

ASM Details

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1 WORK INCLUDED

(1) Valley Protection Membrane

Accepted self-adhered modified bituminous eave protection membrane.

(2) Valley flashing

(3) Fastening

Metal valley panels to be secured with compatible, non-corrosive, flat head fasteners 200 mm (8") o/c. Metal roof panel to metal valley panel overlap must be a minimum of 125 mm (5"). See 10.3.5.2.2 (5).

(4) Valley panel overlap

Overlaps minimum 200 mm (8") sealed with two rows of acceptable sealant or butyl tape, and secured with drag load fasteners.

(5) Membrane flashing

Accepted self-adhered modified bituminous eave protection membrane.

(6) Underlayment

The type of underlay required is determined by roof slope.

(7) Ventilation layer

Recommended over asphaltic underlays and / or as required in this Standard (see 8.1.2 Design).

(8) Architectural metal roof panel

2 RELATED WORK BY OTHERS

(A) Acceptable Deck

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.

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RoofStar Guarantee Standards for Architectural Sheet Metal (ASM) Systems

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