5.2.1.3.Environmental Load and Transfer Calculations

(1) Calculations related to the transfer of heat, air and moisture and the transmission of sound shall conform to good
  engineering practice such as that described in the ASHRAE Handbooks.

  (2) For the purposes of any analysis conducted to indicate conformance to the thermal resistance levels required in
  Article 5.3.1.2., soil temperatures shall be determined based on annual average soil temperature, seasonal amplitude of
  variation and attenuation of variation with depth.

  (3) Wind load calculations shall conform to Subsection 4.1.7.

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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.