No-Burn® ThB Spray Seal – A Vapor Retarder and Thermal Barrier

A vapor retarder & thermal barrier in one application, you read that right! Check out our video on No-Burn®’s ThB Spray Seal. Open cell spray foam has great sound attenuation and so many other benefits, but installing open cell in the north requires a vapor retarder. When spraying attics, crawl spaces, or anywhere the foam will be exposed, if there is potential to use the space, code requires it to be separated from storage, or occupied space, by a fifteen-minute thermal barrier.

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