Construction codes of Ontario

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Fastening of Wood Furring

Fastening of Wood Furring (1) Furring shall be fastened to the framing or to wood blocks with not less than 51 mm nails. Article 9.29.3.2. Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only. Note : The term furring is used to describe the use of wooden strips or beams to […]

Fastening Panel-type underlay

Fastening Panel-type underlay (1) Panel-type underlay shall be fastened to the subfloor with staples, annular grooved flooring nails or spiral nails, spaced not more than 150 mm o.c. along the edges and 200 mm o.c. both ways at other locations. (2) Nails for panel-type underlay shall be not less than 19 mm long for 6 mm thick […]

Fastening to Lath

Fastening to Lath, (1) When lath is used with double-course application (see Sentence 9.27.5.1.(4)), it shall be spaced according to the exposure and securely fastened to the framing. (2) The butts of the under-course of the application referred to in Sentence (1) shall rest on the top edge of the lath. (3) The outer course of […]

Fire Block Materials

(1) Except as permitted by Sentences (2) to (4) and (7) fire blocks shall remain in place and prevent the passage of flames for not less than 15 min when subjected to the standard fire exposure in CAN/ULC-S101, “Fire Endurance Tests of Building Construction and Materials”. (2) Gypsum board not less than 12.7 mm thick and sheet […]

Fire-Retardant Treated Wood

(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. Article 3.1.4.5 Ontario Regulation 332/12 Building Code, Information published by oncodes.ca for educational purposes only.

Firewalls in Detached Garages

Firewalls in Detached Garages (1) Where a garage is detached from the house or the individual dwelling unit it serves but attached to another garage on the adjacent property, the party wall so formed shall be constructed as a fire separation having a fire-resistance rating of not less than 45 min. Article 9.10.11.4 Ontario Regulation 332/12 […]

Firewalls Not Required

Firewalls Not Required (1) A party wall on a property line need not be constructed as a firewall provided it is constructed as a fire separation having not less than a 1 h fire-resistance rating if, (a) the property line is between houses, or (b) the property line is between dwelling units in a […]