Difference between revisions of "Draft CD 7"

Revision as of 14:18, 5 October 2020

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) 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: Set in two continuous rows of accepted caulking or sealant tape.
(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

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.

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-[[File:ASM 10.3.1 Hooked Valley Flashing.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/5/5a/ASM_10.2.2_Roof-Headwall_Connection_%28Vented%29.jpg]]
+[[File:ASM 10.3.1 Hooked Valley Flashing.jpg|class=img-responsive | link=http://rpm.rcabc.org/images/b/bb/ASM_10.3.1_Hooked_Valley_Flashing.jpg]]
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