In Plain Language

Asphalt shingle coverage must meet the requirements set out in this article, ensuring adequate overlap so no part of the roof deck is left exposed.

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.