CertainTeed · Vapor retarder film
MemBrain™
Quote requiredCertainTeed's MemBrain is a smart vapor retarder that improves energy efficiency by controlling moisture levels. Its innovative technology is versatile, easy to install, sustainable, and provides an excellent solution for moisture control and energy efficiency in residential and commercial construction applications.
- Exceptional Versatility — This adaptable solution can provide a continuous air barrier along with advanced moisture management in a single product.
- Blocks and Breathes — Remains tight in winter when humidity in the cavity is low to prevent moisture from entering. Increases permeability in summer to let moisture escape, helping to keep the wall dry.
- Sustainable Performance — Up to 40% recycled material, low VOC, and supports high-performance, long-lasting building envelopes.
- Easy Install, Yet Durable — Lightweight, flexible, and made from a tough, Class A fire‑rated polyamide film, MemBrain installs quickly across walls, ceilings, and floors.
- BABA Compliant — Build America, Buy America (BABA) Act compliant.
Description, photography and documents as published by CertainTeed. Their product page ↗
Sizes
4 of 4. Every figure is CertainTeed's published data.| Roll width | Thickness | |
|---|---|---|
| 8 ft. | 2 mil | |
| 9 ft. | 2 mil | |
| 10 ft. | 2 mil | |
| 12 ft. | 2 mil |
Additional R-values and thicknesses may be available, and availability varies by region — CertainTeed's own note on these tables. The desk confirms what your yard holds before anything ships.
About This Product
CertainTeed's MemBrain is a smart vapor retarder that helps to improve the energy efficiency of buildings by controlling moisture levels. This innovative insulation solution is designed to adapt to changes in humidity levels, allowing moisture to escape when necessary, while still blocking moisture from entering the building envelope. MemBrain is made from high-quality polyamide material that is both durable and easy to install. Its innovative technology helps to improve indoor air quality by controlling moisture levels and reducing the risk of mold and mildew growth. This insulation solution is also versatile and can be used in a wide range of applications, including walls, floors, and ceilings.
Documents
16 documents, served straight from CertainTeed so you always get the current revision.
- MemBrain Installation Guide (EN/SP/FR)Installation · PDF ↗
- 3 Part Specification - Insulation3-part specification · PDF ↗
- Safety Data Sheet SDS - MemBrainSafety data sheet · PDF ↗
- Specification Sheet - MemBrainSubmittal / specification · PDF ↗
- Submittal Sheet - Building InsulationSubmittal / specification · PDF ↗
- Technical Brochure - MemBrainBrochure · PDF ↗
- Commercial Insulation Product Selection GuideBrochure · PDF ↗
- MemBrain - Sell SheetBrochure · PDF ↗
- Residential Insulation - Product Selection GuideBrochure · PDF ↗
- Residential Insulation - Sustainable Insulation - West Coast - Product Selection GuideSustainability · PDF ↗
- MemBrain Air Barrier Installation Instructions for Wood FramingInstallation · PDF ↗
- MemBrain Homeowner Install InstructionsInstallation · PDF ↗
- MemBrain Installation Guide (EN/SP/FR)Installation · PDF ↗
- LEED Homes Rating System Credit Opportunities for FiberGlassSustainability · PDF ↗
- Naima Fiber Glass & Rock and Slag Wool Insulation and LEED™Sustainability · PDF ↗
- Technical Insulation Service PolicyData sheet · PDF ↗
Ask About This Product
Answered from CertainTeed's own documents — the 16 sheets listed above — with the source and page behind every line.