CertainTeed MemBrain The Smart Vapor Retarder

Publication Type:
Fact Sheet

Published / Updated:

CertainTeed MebBrain vapor retarder 'breathes' allowing moisture to escape, lowering the risk of moisture related problems in the building envelopes. This vapor retarder, is a polyamide film that changes its permeability with humidity conditions. When humidity is high, whether form seasonal changes or moisture intrusion, MemBrain allows the water vapor to pass through. When humidity is low, MemBrain blocks the passage of moisture so that it will not sondense on cold surfaces within the building envelope. Download this fact sheet to learn more about MemBrain Vapor Retarder for your home.

  • performance chart
  • breathable walls
  • MemBrain compared to polyethylene

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