Code Library › Volume 1 › Section 9.28 — Stucco
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.28.4.6.Fastening

(1) Stucco lath shall be fastened in conformance with Subsection 9.27.5. (2) Fasteners on vertical surfaces shall be spaced not more than (a) 150 mm o.c. vertically and 400 mm o.c. horizontally, or (b) 100 mm o.c. vertically and 600 mm o.c. horizontally. (3) Nailing patterns other than those required in Sentence (2) are permitted to be used provided there are at least 20 fasteners per square metre of wall surface. (4) Fasteners on horizontal surfaces shall be spaced not more than (a) 150 mm o.c. along the framing members when members are spaced not more than 400 mm o.c., and (b) 100 mm o.c. along the framing members when members are spaced not more than 600 mm o.c.
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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.