In Plain Language

This clause requires shingle tabs to be secured with either a dab of plastic cement (no more than 25 mm across, under the centre of each tab) or with interlocking devices or factory self-sealing strips, to keep tabs from lifting in wind.

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.