air barrier, definition of

A material often installed around the frame of a building to prevent or reduce the infiltration of air into the interior which could be too hot, too cold or too humid for comfort.

• This family-friendly home is a beacon of modern energy-efficient design in Calgary
  Located in one of the most coveted lots in Calgary’s inner-city neighborhood of Rosedale, this modern single-family home crafted by local design/build firm Alloy Homes was, as the firm puts it, “designed to lead by example.” Created with an undeniable...