Spray foam is a great product that we use from time to time. Its ability to air seal and insulate makes it a great tool for difficult to seal spaces like stone basements and crawlspaces. It also is not prone to mildew and mold which makes it particularly useful in a basement or crawl space. We use a two-part closed cell foam that is rated at an R-6.9 per inch. The brands we like are Bayseal and Gaco One Pass both American made foams.
While foam has many attributes it is important to remember that it is manufactured right in your home meaning there are safety concerns during installation.
For example, it is recommended that all occupants be out of the home for 24 hours after the foam is installed to allow the fumes to escape. It is also important that all the components of the installation are working together. This includes: making sure the surface you are applying the foam to is prepared correctly, it must be the right temperature and moisture content. Also, the material must be stored properly and the spraying equipment must be in top form to make sure the mixture is perfect.
Once all of these challenges are met- foam can be great insulation for Maine homes.
The application of spray foam to the ceiling in the picture above allowed this Central Maine homeowner to showcase the exposed beams in the cathedral ceiling while benefiting from increased energy efficiency and improved comfort.
Bo, Thank you so much for your performing the work at my house. You and your crew did an amazing job. It has made such a difference in the temperature in every room. Good luck to you in your future endeavors. Thanks again!