O. Reg. 89/23: BUILDING CODE

 

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:

 

98.

ASTM

D2898-10

Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing

3.1.4.8.(3) 3.1.5.5.(3) 3.1.5.25.(1) 3.1.6.9.(6) 3.2.3.7.(5)

 

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 a building conforming to Article 3.2.2.42A., 3.2.2.43A., 3.2.2.49A or 3.2.2.50A include non-contiguous roof assemblies at different elevations, the roof coverings referred to in Sentences (3) and (4) are permitted to be evaluated separately to determine the roof covering classification required.

6. Sentence 3.2.2.10.(3) of Division B of the Regulation is revoked and the following substituted:

(3) A building within the scope of Article 3.2.2.43A. or 3.2.2.50A. is considered to face one street, where,

(a) not less than 25% of the building perimeter is located within 15 m of a street or streets, or

(b) not less than 10% of the building perimeter is located within 15 m of a street or streets, provided the exterior cladding conforms to Sentence 3.1.4.8.(2).

7. (1) Clause 3.2.2.43A.(2)(e) of Division B of the Regulation is revoked.

(2) Sentence 3.2.2.43A.(5) of Division B of the Regulation is revoked and the following substituted:

(5) Group A, Division 2 major occupancies, Group E major occupancies and storage garages located in a building or part of a building within the scope of this Article are permitted to be constructed in accordance with this Article, provided,

(a) Group A, Division 2 major occupancies and Group E major occupancies are located below the third storey, and

(b) storage garages are located below the fourth storey.

8. (1) Clause 3.2.2.50A.(2)(e) of Division B of the Regulation is revoked.

(2) Sentence 3.2.2.50A.(4) of Division B of the Regulation is revoked and the following substituted:

(4) Group A, Division 2 major occupancies, Group E major occupancies, Group F, Division 2 and 3 major occupancies and storage garages located in a building or part of a building within the scope of this Article are permitted to be constructed in accordance with this Article, provided,

(a) Group A, Division 2 major occupancies, Group E major occupancies and Group F, Division 2 or 3 major occupancies are located below the third storey, and

(b) storage garages are located below the fourth storey.

9. (1) Sentence 3.2.3.7.(1) of Division B of the Regulation is amended by striking out “Sentences (3) to (6)” and substituting “Sentences (3) to (5)”.

(2) Sentence 3.2.3.7.(3) of Division B of the Regulation is revoked and the following substituted:

(3) Except as provided by Sentences (4) and (5) and Articles 3.1.4.8. and 3.1.6.9., cladding for buildings or fire compartments where the maximum permitted area of unprotected openings is more than 10% of the exposing building face need not be noncombustible where the wall assembly complies with the requirements of Sentence 3.1.5.5.(1) when tested in conformance with CAN/ULC-S134, “Fire Test of Exterior Wall Assemblies”.

(3) Sentence 3.2.3.7.(4) of Division B of the Regulation is amended by striking out “Sentence (6)” and substituting “Articles 3.1.4.8. and 3.1.6.9.”.

(4) Sentence 3.2.3.7.(5) of Division B of the Regulation is amended by striking out “Sentence (6)” in the portion before clause (a) and substituting “Articles 3.1.4.8. and 3.1.6.9.”.

(5) Sentences 3.2.3.7.(6) and (7) of Division B of the Regulation are revoked.

(6) The heading to Table 3.2.3.7. of Division B of the Regulation is revoked and the following substituted:

Table 3.2.3.7.
Minimum Construction Requirements for Exposing Building Faces

Forming Part of Sentences 3.1.6.9.(5) and 3.2.3.7.(1) and (8)

(7) The Notes to Table 3.2.3.7. of Division B of the Regulation are revoked and the following substituted:

Notes to Table 3.2.3.7.:

⁽¹⁾ The cladding on Group C buildings within the scope of Article 3.2.2.43A. and on Group D buildings within the scope of Article 3.2.2.50A. shall be noncombustible or consist of a wall that satisfies the requirements of Article 3.1.4.8.

10. (1) Sentence 3.2.9.1.(1) of Division B of the Regulation is amended by striking out “Sentences (4) to (7)” in the portion before clause (a) and substituting “Sentences (4) to (8)”.

(2) Clause 3.2.9.1.(7)(a) of Division B of the Regulation is amended by striking out “adjacent ground level” at the end and substituting “grade”.

(3) Article 3.2.9.1. of Division B of the Regulation is amended by adding the following Sentence:

(8) A standpipe system is not required to be installed in a building classified as Group C major occupancy,

(a) that is not more than 4 storeys above grade,

(b) that does not contain a public corridor or other common areas,

(c) where each dwelling unit,

(i) is completely cut off from the remainder of the building so that there is no access to the remainder of the building,

(ii) has direct access to its interior by means of an exterior doorway located not more than 1 500 mm above or below adjacent finished ground level, and

(d) that conforms to the requirements of Article 3.2.2.44. or Article 3.2.2.45.

11. (1) Sentence 3.4.4.1.(1) of Division B of the Regulation is amended by striking out “Sentences (2), (3) and (5)” in the portion before clause (a) and substituting “Sentences (2) and (5)”.

(2) Sentence 3.4.4.1.(3) of Division B of the Regulation is revoked.

12. Sentence 3.16A.2.8.(4) of Division B of the Regulation is revoked and the following substituted:

(4) Footings shall be designed in accordance with Clause 9.4.4.1.(1)(b).

Commencement

13. This Regulation comes into force on the day it is filed.

Made by:

Steve Clark

Minister of Municipal Affairs and Housing

Date made: May 10, 2023