We Test ALL Of Our Vapor Barriers

Crawl Space Vapor Barriers

Crawl Space Vapor Barrier

  • All vapor barriers are tested for VOC's and off-gassing before we sell them to you
  • We use an independent lab in Minnesota 
  • Every roll has a serial number that can be tracked to the test certificate
  • Test certificates available upon request
  • If you have a post encapsulation odor, send us a sample of the affected barrier and we can have it tested to determine the cause 

Why Test?

Over the last 15 years there has been concerns about post encapsulation odors in an crawl spaces caused by the vapor barrier. There has been a lot of finger pointing and this issue has been leveraged to disparage string reinforced vapor barriers by suppliers who were rejected by those string reinforced manufactures. 

Some suppliers offer a verbal commitment if their products produce an odor they will replace it with more of their product. Not sure if that is a good solution when there is an actual problem that needs resolving.

CrawlSpaceRepair.com, LLC takes a different approach, we send our vapor barrier directly to an independent lab (on the other side of the country) and have it tested for odors caused by VOC's. This test is done on every vapor barrier manufacturing lot. The results are provided in a certificate from the lab that clears the crawl space vapor barrier to continue to the packaging line and then be sold. 

We track every roll we produce with a serial number and that serial number is associated with the proper lab results certificate. If you would like a copy of the certificate for the lab results on the vapor barrier you have purchased or are about to purchase all you have to do is ask. If these is a problem with a post encapsulation odor with any of our products we (at no charge) will request a sample from the affected crawl space and send it back to the lab to find out what has changed and could be causing the odor from the crawl space. This retest exposes the real cause of the odor.

Standard Woven vs High Strength™
Is there a difference?