Asphalt Shingles - Intersection with Waterproofing Roof (Lower)

Division D - Construction Details

ASh 10.7.2 Junctions with Waterproofing Systems (Lower)

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Asphalt Shingle Details

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(1) Underlayment: Required, and installed to overlap the Valley Protection Membrane and the Valley Metal Flashing. Install ‘shingle-style’, following the requirements for side and end laps; use acceptable fasteners, or adhere (if a self-adhering membrane) in keeping with the manufacturer’s published requirements.
(2) Field Shingles: Fasteners used to secure shingles must be at least 300 mm (12") above the finished surface of the roof waterproofing system.
(3) Waterproofing roof system: Secure membrane to water-shedding roof deck at least 300 mm (12") above the finished surface of the roof waterproofing (refer to the related Membrane Standards, Part 9 FIELD MEMBRANE and Part 10 PERIMETERS and WALLS).

NOTE: See the Standard for additional requirements.

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