Div. B › Part 3 › 3.1 › 3.1.4 — Combustible Construction

3.1.4.5 — Fire-Retardant Treated Wood

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(1) If fire-retardant treated wood is specified in this Part, the wood shall,
(a) be pressure impregnated with fire-retardant chemicals in conformance with CAN/CSA-O80 Series, “Wood Preservation”, and
(b) have a flame-spread rating not more than 25.
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