The Ontario Building Code | Fastening
9.26.9.5. Fastening
(1) Shingles shall be fastened with two nails or staples located approximately 20 mm from the sides of the shingle and 40 mm above the exposure line.
In Plain Language
Wood shingles or shakes must be fastened as set out in this article, covering fastener type and placement for secure, long-lasting attachment.
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.