Spray Foam Insulation Crawl Space
Because closed cell foam is resistant to moisture and rodent activity many well intentioned handymen and homeowners have started to use it as an insulation material in basements and crawl spaces.
Spray foam insulation crawl space. Because open cell spray foam does not create a vapor barrier as it s installed it is inappropriate for use in a crawl space environment. Spray foam insulation does not move. Spray foam insulation in the crawl space is a superior insulation product that overcomes several disadvantages of other insulation products.
Let s assume the walls of your crawl space are 60 feet by 25 feet. Linear footage 25 25 60 60 or 170. Sq footage 60 x 25 or 1500.
We have experience with both commercial and residential projects and can install spray foam in walls attics and crawl spaces. Don t get me wrong spray foam when used in moderation to seal gaps can be effective. The gold star insulation team uses spray foam insulation for retrofit re insulation and new construction projects.
Besides a small act of spray foam my crawl space was encapsulated with vinyl and rubber matting underneath the floor all dirt and quite messy before but never smelled now toxins permitted to all furniture and had to rid 1 2 of home and now 15 months later a salty taste left in air and when mopping floor with mask throat burns what is it and. The foam needs to then be covered with drywall as fire protection which can be attached to the stud wall. Spray foam is then applied to the walls behind the studs and into the cavities you can leave enough room to do any wiring if required.
Spray foam can provide a more uniform consistent thermal barrier as well as provide stack effect air flow retarding functions. Spray foam may be a good alternative for the parts of your home that are above grade but it is not a superior product for a crawl space regardless of the salesman s insistence that it is an air barrier or that it is a moisture barrier. That open cell spray foam provides.
About r 6 per in as compared to r 3 7 per in. The old insulation in the crawl space will have to be removed before the spray foam can be installed. This means you can insulate the entire crawl space with fiberglass insulation for 1500.