BUILDING CODE, O. Reg. 89/23

• Jurisdiction: Ontario
• Year: 2023

ontario regulation 89/23

made under the

Building Code Act, 1992

Made: May 10, 2023
Filed: May 12, 2023
Published on e-Laws: May 12, 2023
Published in The Ontario Gazette: May 27, 2023

Amending O. Reg. 332/12

(BUILDING CODE)

1. Clause 1.4.1.3.(1)(j) of Division A of Ontario Regulation 332/12 is amended by striking out “section 47” and substituting “section 34.1 or 47”.

2. Item 98 of Table 1.3.1.2. of Division B of the Regulation is revoked and the following substituted:

3. Article 3.1.4.8. of Division B of the Regulation is revoked and the following substituted:

3.1.4.8. Cladding

(1) Except as provided in Sentence (2), not less than 90% of the exterior cladding on each exterior wall of buildings conforming to Article 3.2.2.43A. or 3.2.2.50A. shall consist of,

(a) noncombustible cladding, or

(b) a wall assembly that satisfies the criteria of Clause 3.1.5.5.(1)(b).

(2) Where a building is considered to face one street in accordance with Clause 3.2.2.10.(3)(b), the exterior cladding on each exterior wall of buildings conforming to Article 3.2.2.43A. or 3.2.2.50A. shall consist of,

(a) noncombustible cladding, or

(b) a wall assembly that satisfies the criteria of Clause 3.1.5.5.(1)(b).

(3) A wall assembly conforming to Clause (1)(b) or (2)(b) that includes combustible cladding made of fire-retardant-treated wood shall be tested for fire exposure after the cladding has been subjected to the accelerated weathering test specified in ASTM D2898, “Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing”.

4. Article 3.1.4.9. of Division B of the Regulation is revoked.

5. (1) Sentence 3.1.15.2.(1) of Division B of the Regulation is amended by striking out “Sentences (2) to (4)” and substituting “Sentences (2) to (5)”.

(2) Sentences 3.1.15.2.(3) and (4) of Division B of the Regulation are revoked and the following substituted:

(3) Except as provided in Sentence (5), roof coverings on buildings within the scope of Article 3.2.2.43A. or 3.2.2.50A. shall have a Class A classification if the roof height is greater than 25 m measured from the floor of the first storey to the highest point of the roof.

(4) Except as provided in Sentence (5), roof coverings in buildings or parts of buildings permitted to be of encapsulated mass timber construction shall have a Class A classification if the roof height is greater than 25 m measured from the floor of the first storey to the highest point of the roof.

(5) Where buildings or parts of...