5.1.8 Identify the appropriate location of various barrier systems within the building envelope

  • SPA: Seale Polyethylene Approach
  • ADA: Airtight Drywall Approach
  • EIA: Exterior Insulation Approach
  • HWA: House Wrap Approach

•Air Barrier:
 Vapour Barrier: Thermal Barrier
SPA: interior install
ADA: interior install
EIA : exterior install
HWA: exterior install		 Warm side - Always interior in Canada SPA: middle
ADA: middle
EIA : middle & Exterior
HWA: middle

SPA approach
HWA Approach
EIA approach
ADA approach