ASh 10.7.1 Junctions with Waterproofing Systems (Upper)

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ASh 10.7.1 Junctions with Waterproofing Systems (Upper)

Division D - Construction Details

ASh 10.7.1 Junctions with Waterproofing Systems (Upper)

Notice to Reader
Images used in a Construction Detail are representative and not prescriptive. Nor are they necessarily drawn to scale. Rather, they are provided to visually convey the requirements of the Standard they represent. Unless otherwise required by the Standard, dimensions, the selection of materials and their application remains the responsibility of the Design Authority.

The full text of the referenced requirements in the Standard may be read by using the blue hyperlinks
Asphalt Shingle Details
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ASh 10.7.1-1 CD.jpg
ASh 10.7.1-2 CD.jpg


(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) Eave Protection Membrane
Applied beneath the metal valley flashing.
(3) Shingles (field)
(4) Metal Counterflashing/Headwall Flashing.
(5) Metal Edge Flashing
(refer to the related Membrane Standards, Metal Edge Terminations).
(6) Field Membrane
(refer to the related Membrane Standards, Part 9 FIELD MEMBRANE and Part 10 PERIMETERS and WALLS).


(A) Acceptable Deck

NOTE: See the Standard for additional requirements.

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