NBC 9.25: Heat, Air and Moisture Transfer Control

9.25.1.1. Scope. This Section applies to the control of heat, air, and moisture transfer through the building envelope.

9.25.2.1. Thermal Insulation. Insulation shall be installed to provide a continuous thermal barrier and minimize thermal bridging.

9.25.3.1. Air Barrier System. A continuous air barrier system shall be provided to minimize air leakage through the building envelope.

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