The insulation of the attic as well as the insulation of the 2nd story wood frame walls was done by applying spray on insulation foam. The foam was sprayed onto the underside of the roof decking and into the cavities formed by the wall studs and the outside sheeting. It was also applied into the opening formed by the roof trusses and the walls; therefore sealing the inside of the house from the outside air and providing a very efficient thermal insulation (R-30 and higher) as well as a water barrier.

In contrast to the traditional insulation method of laying fiberglass R-30 insulation onto the ceiling (resulting in an extremely hot attic where air flows through to vent it) the foam insulation method provides a heated/cooled airspace in the attic; which is completely sealed from the outside. Since the foam method has no airflow from the outside into the house no other "foreign" objects like bugs or other little animals can enter the attic resulting in greatly reduced termite damage. Also, the flow of dust and allergens through the attic is stopped providing a better living  quality. This method of insulation also reduces the size of A/C units; significantly reducing cost. Combining this insulation method with computer controlled A/C thermostats the additional cost for the high efficient insulation is quickly recovered by less cost for A/C units and lower monthly electric bills.

An added benefit of this insulation method is that the homeowner can have a fiberglass free home. Several studies have found that fiberglass has a negative impact on living quality (www.sustainableenterprises.com/fin) . It also deteriorates over time; beeing exposed to humid air. Examining older attics you will find that the thickness of the fiberglass has shrunk; greatly reducing the insulation capabilities. That means it has to be replaced. Foam on the other hand does not deteriorate. It also prevents miosture from entering the house resulting in fewer mold issues. This insulation has been on the market for nearly 20 years and has been successfully used in commercial and residential buildings.

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