Atta Boy Property Inspections Spray Foam
Open-cell spray foam absorbs and holds water. It has a lower R–value per inch than closed-cell foam and is vapor-permeable. The R–value is R-3.5 to R-3.6 per inch, so filling a 2×4 cavity yields about an R-13.
With proper application, Closed cell-foam will last the lifetime of your home. Even roofing applications will last upwards of 30 years, with proper long-term maintenance. Spray Foam insulation adheres extremely well to virtually all substrates, and maintains its rigidity once dry. As a product, spray foam insulation does not attract mold. And unlike wood or metal, spray foam does not rot, rust or deteriorate. This means that an area properly sprayed with foam insulation will never become a food source or a hospitable environment for a moldcolony. Mice have been known to chew through electrical wires, fiberglass insulation batts, and rigid foam insulation. Generally, micehave no attraction to spray foam insulation, as it doesn’t represent a food source.
Spray foam is more expensive for several reasons: 1) The material is a thermal plastic; a by-product of crude oil. As the price of oil goes up, so does the price of spray foam. 2) Essentially, it’s a high performance product and the price reflects it.
The Energy Star Association has shown that monthly energy bills can be cut by up to 20% when air leaks are sealed and efficient insulation is installed. The initial cost of spray foam insulation is well worth the investment, when factoring in the overall savings that will be headed your way over the long term.