24 164288 000

Project Description

At the request of 31 F Development Limited Partnership, Matteo Gilfillan & Associates Inc. (MGA) has prepared this correspondence to summarize the proposed project approach for the application of the Ontario Building Code ("OBC") Subclause 3.1.8.8.A.(2)(a)(iii) to a residential public corridor make-up air system forming a high-rise smoke control system that would qualify for exemption to waive smoke dampers at the residential public corridor air transfer openings for the proposed building to be located at 32 Olive Avenue in Toronto, Ontario. This correspondence has been prepared with respect to the fire and life safety requirements in Part 3 of the 2012 Ontario Building Code (OBC, O.Reg. 332/12 as amended to O.Reg. 451/22 - i.e., Code of Record for the project) as well as the Alternative Solution Proposal requirements in Division C, Article 2.1.1.1 of the OBC. The correspondence has been prepared as an Alternative Solution Proposal as specifically requested by the City of Toronto in the past, as despite recent clarification changes to the OBC with respect to smoke dampers in ducts and air-transfer openings in residential public corridors as noted in Sentences 3.2.6.2.(5.1) and 3.1.8.8A.(2), the project is subject to the requirements of the 2012 Ontario Building Code (OBC, O.Reg. 332/12 as amended to O.Reg. 451/22, i.e., Code of Record), based on the date of permit application.Since the application for the Building Permit of the project, an amended Building Code Regulation has been issued and come into force. OBC, O.Reg. 30/23 specifically addresses the subject matter of the permission to waive smoke dampers in certain locations in OBC Sentence 3.1.8.8A.(2), and the revised language clarifies the intent that the branch ducts of make-up air systems penetrating the public corridor fire separation can apply the waiver permitted in Subclause 3.1.8.8A.(2)(a)(iii), as the revised wording adds a specific reference to OBC Sentence 3.2.6.2.(5.1 ), applicable to the public corridor make-up air system configuration of the project. It is important to note that no other related OBC requirements were altered in the amendment by O.Reg. 30/23 (several requirements related to demountable stages and support structures were added).

Permit Details