Code Library › Volume 1 › Section 9.27 — Cladding
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.27.12.1.Material Standards

(1) Vinyl siding shall conform to ASTM D3679, “Standard Specification for Rigid Poly (Vinyl Chloride) (PVC) Siding.” (2) Insulated vinyl siding shall conform to ASTM D7793, “Standard Specification for Insulated Vinyl Siding.” (3) Rigid vinyl soffits shall conform to ASTM D4477, “Standard Specification for Rigid (Unplasticized) Poly(Vinyl Chloride) (PVC) Soffit.” (4) Where vinyl siding, insulated vinyl siding or rigid vinyl soffits are required to have a flame-spread rating, the rating shall be determined in accordance with CAN/ULC-S102.2, “Standard Method of Test for Surface Burning Characteristics of Flooring, Floor Coverings, and Miscellaneous Materials and Assemblies.”
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.