Difference between revisions of "Asphalt Shingles - Valley Intersection with Ridge"
Difference between revisions of "Asphalt Shingles - Valley Intersection with Ridge"
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| + | <big><big>Division D - Construction Details</big></big> | ||
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| + | <big><big><big><big><big>ASh 10.5.1 Valley Transition (Upper)</big></big></big></big></big> | ||
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Revision as of 20:58, 7 September 2021
Division D - Construction Details
ASh 10.5.1 Valley Transition (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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1 WORK INCLUDED
- (1) Valley Protection Membrane
- Applied beneath the metal valley flashing.
- (2) Valley Metal Flashing
- Required for open valleys.
- (3) 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.
- (4) Lower Membrane Patch
- Required to cover the joint where the ridgeline of one roof joins the sloped plane of another. Cut as illustrated and apply to the slope; the patch must be cut large enough to extend upslope at least 150 mm (6”), but must not exceed the exposure of the ridge cap shingles.
- (5) Upper Membrane Patch
- Required to overlap the Lower Membrane Patch, ‘shingle-style’, by at least 50 mm (2”). Extend the patch upslope past the Metal Valley Flashing at least 150 mm (6”).
- (6) Shingles (field)
- (7) Shingle Ridge Cap
- (8) Split Ridge Cap Shingle Transition
- Required to tie the ridge caps into the adjacent roof field shingles.
2 RELATED WORK BY OTHERS
- (A) Acceptable Deck
NOTE: See the Standard for additional requirements.
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