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CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq
CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq

CertainTeed MemBrain 10 ft. W X 100 ft. L X 2 mil Air Barrier and Smart Vapor Retarder Roll 1033 sq

Made in America

Support American manufacturers + independent hardware retailers in one purchase.

Adjusts with humidity to block moisture in winter and let walls dry out the rest of the year, covering 1,033 sq. ft. per roll.
Certainteed MPN 902010
Sold Locally Only

This product isn’t sold on our website — see your local hardware store.

In-Store Exclusive

This one's worth the trip to the store.

This Certainteed item is one you'll find in stores rather than online — and that's often the better way to buy. In store you get the genuine article, full manufacturer warranty, and real advice from someone who's actually handled it — no counterfeits, no gray-market resellers.

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About Product Overview

CertainTeed's MemBrain is a smart vapor retarder, meaning it doesn't just block moisture in one direction the way traditional poly sheeting does. It adjusts its permeability with humidity levels, so it slows vapor drive in winter but allows a wall or attic assembly to dry out when conditions shift with the seasons. That's a real advantage in mixed-humidity climates where trapped moisture behind a static vapor barrier can lead to mold or rot over time.

This 10' x 100' roll covers just over 1,000 square feet, enough for a good-sized renovation or new build without much waste. It's formaldehyde free, which matters for indoor air quality, and it's built for use in both attics and wall cavities as part of a complete air barrier system. Made in the USA.

  • Coverage area: 1,033 sq. ft. per roll
  • Roll size: 10' x 100'
  • Thickness: 2 mil
  • Smart vapor retarder adjusts permeability with humidity
  • Formaldehyde free
  • Rated for attics and walls

The Details Specifications

Brand Certainteed
Model / MPN 902010
UPC 042919020106
Weight 14 lbs
Country of Origin USA
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
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