1. +


Intent 1:

To exempt metal frames of windows and doors from the requirements for a thermal break, on the basis that they are installed as:

  • vehicular access doors,
  • storm windows and doors, or
  • windows and doors that are required to have a fire-resistance rating, where:
  • practical construction limitations outweigh the need for thermal protection (vehicular access doors),
  • thermally broken layers are inherent to the design (storm windows and doors), or
  • other Code considerations take precedence (required fire-resistance rating).
Top of Page