Roof and Deck Insulation

Roof R-value to be R40

Weather Barriers

Air Barriers

  • All air/vapour barrier membrane installations shall be orientated according to manufacturer‟s specifications.
  • In all circumstances the air/vapour barrier shall overlap the foundation wall a minimum of 150 mm.
  • All joints must be overlapped (minimum 150 mm) and rolled to eliminate all creases and as per the installation manual.
  • All installations must meet the approval of the design Architect and the University of Lethbridge Building Envelope Commissioning team.
Membrane Roofing
  • Elastomeric Membrane Roofing option: Elastomeric modified bitumen fully adhered roof type.
  • Thermoplastic Membrane Roofing Roof option: Thermoplastic polyolefin membrane roof type.