The Ontario Building Code | Extensive Renovation
11.3.3.2. Extensive Renovation
(1) Where existing interior walls or ceilings or floor assemblies or roof assemblies are substantially removed in an existing building and new interior walls, ceilings, floor assemblies or roof assemblies are installed in the building, structural and fire-resistance elements shall be constructed in compliance with the requirements of the other Parts.
(2) Except as provided in Section 11.5., the proposed constructionwithin an existing suite shall comply with the requirements of Section 3.8. where,
(a) new interior walls or floor assemblies are installed,
(b) the suitehas an area greater than 300 m2, and
(c) the suiteis located in,
(i) a floor area where the existing difference in elevation between the adjacent ground level and the floor level is not more than 200 mm, or
(ii) a normally occupied floor area which is accessible by a passenger type elevator or other platform equipped passenger elevating device from an entrancestorey where the existing difference in elevation between the adjacent ground level and the entrance storeylevel is not more than 200 mm.
(3) Except as provided in Section 11.5., the proposed constructionwithin an existing suite, other than a suite described in Sentence (2) or a suite in a building described in Clause 3.8.1.1.(1)(a), (b), (c) or (d), shall comply with the requirements of Sentences 3.8.1.3.(6), 3.8.2.3.(6), 3.8.3.1.(6), 3.8.3.3.(19), 3.8.3.7.(1), 3.8.3.15.(5) and 3.8.3.16.(4) where new interior walls or floor assemblies are installed.
(4) Except as provided in Sentence (5), where existing interior walls or ceilings or floor assemblies or roof assemblies are substantially removed on any storey in an existing buildingand new interior walls, ceilings, floor assemblies or roof assemblies are installed, the storey shall be sprinklered if,
(a) the storeywill contain a Group C major occupancy, and
(b) the buildingis over 3 storeys in building height.
(5) Sentence (4) does not apply where the building,
(a) conforms to Subclause 3.2.2.44.(1)(a)(ii), and
(b) contains dwelling units having means of egress conforming to Sentence 3.3.4.4.(8).
(6) Where existing interior walls or ceilings or floor assemblies or roof assemblies are substantially removed and new interior walls, ceilings, floor assemblies or roof assemblies are installed in an existing buildingor part of an existing building that is a retirement home regulated under the Retirement Homes Act, 2010, the following requirements apply:
Note: On July 1, 2017, Sentence 11.3.3.2.(6) of Division B of the Regulation is amended by striking out "a retirement home regulated under the Retirement Homes Act, 2010" in the portion before Clause (a) and substituting "a retirement home". (See: O. Reg. 139/17, s. 139 (1))
(a) the retirement home shall be sprinklered,
Note: On July 1, 2017, Clause 11.3.3.2.(6)(a) of Division B of the Regulation are amended by striking out "the retirement home" and substituting "the retirement home" (See: O. Reg. 139/17, s. 139 (2))
(b) a voice communication system conforming to Article 3.2.4.23. shall be provided in the building, if Clause 3.2.6.8.(1)(b) or (c), as applicable, requires that such a voice communication system be provided in the building, and
(c) doors to suitesand sleeping rooms not within suites in the retirement home, other than doors leading directly to the exterior, shall be equipped with self-closing devices.
Note: On July 1, 2017, Clause 11.3.3.2.(6)(c) of Division B of the Regulation are amended by striking out "the retirement home" and substituting "the retirement home" (See: O. Reg. 139/17, s. 139 (2))
11.3.4. Plumbing