Asphalt Shingles - Application (Common and Steep Slopes)

RoofStar Guarantee Standards are blue-linked

Asphalt Shingle Details

Applicable to slopes 1:3 (4" in 12") and greater.

(1) Eave Protection: One ply of self-adhered modified bituminous underlayment material or other acceptable eaves protection. Lap 50 mm (2") minimum on sides and 150 mm (6") minimum on ends. Refer also to 2.2.2 Eave Protection / Underlay.
(2) Underlayment: Minimum one ply of No. 15 non-perforated asphalt saturated felt or accepted eaves protection. Overlap 50 mm (2") minimum on side laps and 150 mm (6") minimum on end laps.
(3) Edge Metal Flashing: Optional (cf. 1.2.10 Wood Deck Overlay Sheathing (Non-Structural) for specific requirements), installed to manufacturer's printed instructions.
(4) Starter Course: Standard Strip and interlocking shingles starter course consist of same type shingles as for roof, applied tabs facing up the slope. Laminated shingle starter courses consist of Manufacturer's proprietary starter shingles or same type shingle with the exposed (bottom) portion cut off below the seal strip. Apply to Manufacturer's printed application instructions.
(5) Standard Strip, Laminated or Interlocking Shingles: Applied as recommended by manufacturer.
(6) Nailing: Note manufacturer's recommended nailing pattern. Placement varies with manufacturer.

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.