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

Questions & Answers

Is this product plastic membrane or a foil ?

Is this product plastic membrane or a foil ?
Asked by: CuriousGeorge
This is a plastic material. It feels a bit like the "crinkly" type of cellophane, such as used in windowed envelopes.
Answered by: JeremyR
Date published: 2017-10-29

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

can I use this on interior wall (tongue & grove) in the attic. ive air sealed cracks with great s...

can I use this on interior wall (tongue & grove) in the attic. ive air sealed cracks with great stuff. Ive laid 6mm poly on floor. Should I use it on exterior walls without insulation? I live in zone 6. i'm cleaning up a mold problem that developed sometime in the last 2 yrs after 3 season cabin was conerted to a yr round home.
Asked by: Marty
This is used to stop air flow thru a home. On the exterior walls and ceiling it should work fine, but you should have insulation between it and the exterior. That would make it work the best.
Answered by: daninkaty
Date published: 2017-11-13
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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 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 very easy to put up. durable and light weight... very easy to put up. durable and light weight
Date published: 2017-09-06
Rated 5 out of 5 by from Smart Investment This is a much better solution to vapor barrier protection than regular poly sheeting. Now realistically it's hard to know how effective this material is in allowing moisture to escape the walls in the summer, and yet prevent moisture from entering the walls in the winter, when it's the biggest problem. But if what they claim is even half true, this is a worthwhile investment. I've opened old walls to find terrible insulation degradation and rot even though a perfectly good moisture barrier was in place. And this technology, I assume, is similar to any "Tyvek" type product for sheathing the outside of a building to prevent moisture problems, so I'm betting it works well, as Tyvek is well proven.
Date published: 2015-08-04
Rated 5 out of 5 by from Easy to install The size fit the room walls great. There is a little over lap at the top and bottom of the wall. We put it over a none backed insulation as per the instructions. The wife and I had no problem installing it ourselves. Started at the top and went down. We used a tar based caulk to adhere it to the studs, then stapled after that. If this does keep mold from growing I'm all for it.
Date published: 2015-06-16
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