Air and vapour barriers
Aerobarrier home and attic air-sealing spray
...sealing the hole. An air seal is thereby created around any openings and cracks in ceilings, walls, windows, plumbing and electrical penetrations. This is an easy way to plug holes in your air barrier that you can’t possibly see - from as small as a human hair to as big as a half-inch wide.
The airflow in the home is...