Air barrier

From Wikipedia, the free encyclopedia

 This article needs additional citations for verification.
Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (August 2007)

Air barriers control air leakage into and out of the building envelope. This allows for more durable buildings as moisture is kept out and also results in significant energy savings. Air barrier products may take several forms:

  • Mechanically-attached membranes, also known as housewraps, usually a polyethylene-fiber or spun-bonded polyolefin product that allows vapor transmission, such as Tyvek
  • Self-adhered membranes, which are typically waterproof and vaporproof
  • Fluid-applied membranes, such as heavy-bodied paints or coatings
  • Closed-cell spray-applied polyurethane foam, which typically provides insulation as well

[edit] External links

This article about a mechanical engineering topic is a stub. You can help Wikipedia by expanding it.
 This architecture-related article is a stub. You can help Wikipedia by expanding it.