The Ontario Building Code | Hips and Ridges
9.26.7.6. 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.
In Plain Language
Hips and ridges, the external and top angles of a roof, need specific shingle treatment as set out in this article, since these areas experience the most direct weather exposure.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.