Hips and Ridges

(1)  Shingles on hips and ridges shall be applied so they extend not less than 100 mm on either side of the hip or ridge, and shall be lapped not less than 150 mm.

(2)  Shingles referred to in Sentence (1) shall be fastened with nails or staples on each side located not more than 25 mm from the edge and 25 mm above the butt of the overlying shingle.


Article Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.

Finish at Ridge and Hips

The most common type of finish for asphalt shingles is shown in Figure 104. Asphalt shingle squares (one third of a strip) are used over the ridge or hip and blind-nailed. Each shingle is lapped to provide the same coverage as the roofing shingles. Orient the ridge cap to provide maximum protection from the prevailing wind. For wood shingles, 150 mm (6 in.) wide shingles are alternatively lapped and blind-nailed (Figure 104). Flashing is sometimes used under a wood-shingle ridge.

Figure 104

Finish at ridge and hips

Source : Canada Mortgage and Housing Corporation (CMHC)