You have probably seen the home improvement shows with spray foam insulation being applied.  You know it is sprayed on and expands almost instantly.  But what is it?

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Spray foam is a polyurethane foam that is essentially the same material used in every day products: furniture, ice chests, refrigerators, etc.  Spray foam achieves its benefits in insulation compared to traditional fiberglass by addressing the three avenues of heat transfer: Conduction, Convection, and Radiation.

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When you hear people talk about insulation, you here the term 'R-value' thrown around a lot.  R-value is important for conductive heat transfer, the actual movement of heat from two materials touching each other, however it does not address the other two forms of heat transfer: convection and radiation.  Convection is the movement of heat through a liquid or a gas in and around a material (think of a convection oven), and radiation is the transmission of heat via electromagnetic rays that causes surrounding areas to heat up (think of items in a car or attic heating up).  A home with Spray Foam protects you from all three types of heat transfer, thus providing you with one, nice, comfortable home.

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