Asphalt Shingles - Changes in Slope (Outside Angle)

Division D - Construction Details

ASh 9.1.4 Slope Change (Outside Angle)

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

File:ASh 9.1.4 CD.jpg

(1) Underlayment: Underlayment on the upper slope must overlap the metal transition flashing and lower slope underlayment.
(2) Self-adhered (eave protection) Membrane: Optional for this slope change configuration, to seal the upper edge of the metal transition flashing. When installed, the SA membrane must overlap the metal by at least 50 mm (2”) and extend upslope past the edge of the lower slope underlayment by at least 50 mm (2”).
(3) Metal Transition Flashing: The lower leg must measure at least 100 mm (4”); the upper leg should measure at least 125 mm (5”).
(4) Starter Shingle
(5) Shingle

NOTE: See the Standard for additional requirements.

© RCABC 2024
No reproduction of this material, in whole or in part, is lawful without the expressed permission of the RCABC Guarantee Corp.