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. Or you can insulate the entire perimeter with spray foam for 1700. 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. Closed cell spray foam has a higher insulation value. Spray foam insulation installation in davis california.
This practice can create moisture problems in the crawl. The gold star insulation team uses spray foam insulation for retrofit re insulation and new construction projects. Let s assume the walls of your crawl space are 60 feet by 25 feet. Spray foam insulation in the crawl space is a superior insulation product that overcomes several disadvantages of other insulation products.
About r 6 per in as compared to r 3 7 per in. Spray foam insulating basement walls bala structures. Spray foam insulation does not move. 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.
That open cell spray foam provides. Finally when it comes to determining the cost to insulate your crawl space the removal of the old insulation can also play a part. Spray foam can provide a more uniform consistent thermal barrier as well as provide stack effect air flow retarding functions. Linear footage 25 25 60 60 or 170.
Unfortunately spray foam is often installed incorrectly broadly coated on sill plates and floor joists without a properly installed vapor barrier. Photo courtesy of justin nickelsen from nickelsen home inspections llc. We have experience with both commercial and residential projects and can install spray foam in walls attics and crawl spaces. Sq footage 60 x 25 or 1500.
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. The old insulation in the crawl space will have to be removed before the spray foam can be installed. 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.