Code Library › Volume 1 › Section 9.26 — Roofing
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.26.11.1.Quantity of Materials

(1) The quantities of bituminous materials used on built-up roofs shall conform to Table 9.26.11.1. Table 9.26.11.1. Quantities of Bitumen for Built-Up Roofs Forming Part of Sentence 9.26.11.1.(1) Amount of Bitumen per Square Metre of Roof Surface Type of Roof Mopping Coats Between Layers Flood Coat Asphalt and aggregate 1 kg 3 kg Coal-tar and aggregate 1.2 kg 3.6 kg Cold process roofing 0.75 L cold process cement 2 L cold process top coating

This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.

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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.