1.1.3.1.Climatic and Seismic Values

(1) The climatic and seismic values required for the design of buildings under this Code shall be in conformance with
  the climatic and seismic values provided in MMAH Supplementary Standard SB-1, “Climatic and Seismic Data”.

  (2) The outside winter design temperatures determined from MMAH Supplementary Standard SB-1, “Climatic and
  Seismic Data”, shall be those listed for the January 2.5% values. (See Note A-1.1.3.1.(2))

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.