Model # 902018

Internet #205920791

Store SKU #1001320880

CertainTeed MemBrain 100 in. x 50 ft. Air Barrier with Smart Vapor Retarder
0042919020182

CertainTeed MemBrain

100 in. x 50 ft. Air Barrier with Smart Vapor Retarder

  • Guards against moisture
  • For use as vapor retarder
  • 100 in. x 50 ft. Air Barrier with Smart Vapor Retarder
$6372 /each
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Frequently Bought Together

Product Overview

  • Guards against moisture
  • For use as vapor retarder
  • 100 in. x 50 ft. Air Barrier with Smart Vapor Retarder
For extra protection against moisture, the MemBrain Continuous Air Barrier and Smart Vapor Retarder is your weapon of choice. It lets wall cavities dry out, to help prevent mold. In summer, when humidity is high, it increases permeability so that moisture can escape, as air tightness is maintained. In winter, when humidity is low, it continues to block moisture. Use MemBrain with un-faced insulation in place of kraft faced insulation or polyethylene. Not all climate zones require vapor retarders.

Specifications

Dimensions

Product Depth (in.)
0.002
Product Height (in.)
100
Product Length (ft.)
50
Product Thickness (in.)
0.002
Product Width (in.)
100

Details

Insulation Type
Accessory
Product Weight (lb.)
5lb
Returnable
90-Day

Warranty / Certifications

Warranty Information
None

Specifications

Dimensions

Product Depth (in.)
0.002
Product Height (in.)
100
Product Length (ft.)
50
Product Thickness (in.)
0.002
Product Width (in.)
100

Details

Insulation Type
Accessory
Product Weight (lb.)
5lb
Returnable
90-Day

Warranty / Certifications

Warranty Information
None

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Questions & Answers

Can I use this over faced insulation and leave in in place when hanging drywall? Would be a year or so at least.

Asked by: Sharp712
It is not recommend to be used with faced insulation.
Answered by: daninkaty
Date published: 2017-02-14

What type of drywall could be put over this in a basement? Since the drywall cant breathe won't the moisture be trapped?

I am looking into using Roxul comfort board IS behind the framed wall and Roxul comfort batt between the studs on the outer walls or my basement. Both allow moisture to pass through so I need an air barrier that does the same but I am concerned that moisture will just build up behind the drywall.
Asked by: Adam
This material is to be put on the outside of stud wall to stop moisture from getting to the studs and insulation and drywall. As long as there is space between the stud wall and basement wall for it to breath then that should let the moisture not build up. If you have a lot of moisture then I'd consider a interior French drain.
Answered by: daninkaty
Date published: 2017-05-10

Is insulation required for the product to function?

Asked by: CW
No ,but using insulation will help control the climate better. Be sure to use the barrier on the outside of the stud wall.
Answered by: daninkaty
Date published: 2017-07-17

will this item work for a barrier under house in a crawl space that has high moisture under it.

Asked by: lars
Yes that is one of the uses for this material.
Answered by: daninkaty
Date published: 2017-02-14
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Customer Reviews

100 in. x 50 ft. Air Barrier with Smart Vapor Retarder is rated 4.7 out of 5 by 31.
Rated 5 out of 5 by from Should be in stores Great product for using with Roxul. Home Depot should carry in stores near the Roxul, so people don't buy poly sheeting instead. That said, it was delivered in a few days, but some people don't have time to wait. I give Home Depot 4 out of 5 stars for not having it in stock, but glad it is available through the website.
Date published: 2017-06-06
Rated 5 out of 5 by from Seems good Used this product on top of unfaced Roxul R15 insulation on the exterior walls of 2 bedrooms. Went up easy, plenty of height for 8' ceilings. Be careful stapling as it seems a bit thin and I had a few staples go through the material. Nothing much to say and hope it works as billed because it's now behind Sheetrock :)
Date published: 2017-08-03
Rated 5 out of 5 by from This film is strong and goes on easily. it is a little pricey, but if it performs as well as the... This film is strong and goes on easily. it is a little pricey, but if it performs as well as they, it should easily pay for itself. My husband works for a contractor that builds high end homes, and this is what they recommend in their houses.
Date published: 2017-06-22
Rated 5 out of 5 by from Good Easy to work with. Used it on a half wall in a basment with roxul. I did not use a vapor retarder on the other walls. Seems to release trapped moisture when I put it up in the summer before I added the Sheetrock.
Date published: 2017-07-11
Rated 4 out of 5 by from Product is easy to cut and install. My only minor complaint is the way the plastic is folded mak... Product is easy to cut and install. My only minor complaint is the way the plastic is folded makes it a little difficult to free the top edge to get started. Otherwise, I was very satisfied with this product.
Date published: 2017-04-25
Rated 4 out of 5 by from It's hard to know if such a product is really doing it's job until, potentially, years after the ... It's hard to know if such a product is really doing it's job until, potentially, years after the fact. That said, the material went on easily enough and I think it'll provide some extra protection in our finished basement. I was worried when I first started applying it because it's a bit more stiff and "crunchy" than I had expected (unlike typical poly), but it went on OK and I didn't experience any tearing. My box was somewhat over 50ft long to the point that I returned a 2nd box which was unneeded, when I thought I'd have to use 15-20ft of it. So, yes, it seems expensive but it was easy to work with and I hope it will do its job! One thing that's always in the back of my mind with any moisture / vapor barrier is that people are going to put holes in it whenever something like a picture gets mounted to the wall. If you're serious about this layer of protection, then I guess it's worth it to make a strong point to only wall-mount if you can do so into a stud. I'd be interested to see some scientific studies done on walls with this stuff, and whether a few small holes has any measurable impact or not.
Date published: 2017-03-28
Rated 5 out of 5 by from The prefect vapor barrier!! I do not know how people ever lived without it. This product blocks vapor, prevents mold and blocks the cold wind outside too!!!
Date published: 2017-07-18
Rated 5 out of 5 by from Great product, easy to install and very sturdy Great product, easy to install and very sturdy
Date published: 2017-04-11
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