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Building Science

Will sealing my building with spray foam cause indoor air quality problems?

Your building does need to be ventilated in order to maximize the quality of indoor air (moisture levels and contaminant levels). Most design professionals will advise you to seal the structure as tight as possible and provide the necessary ventilation through the heating and air conditioning system. Many systems employ a highly energy efficient "air exchanger" which is designed to pre-condition (either warm or cool) the incoming outside air with the outgoing exhaust air. In this manner, you can build an extremely energy efficient exterior shell using high performance spray polyurethane foam while still providing controlled and energy efficient ventilation.

topics: Health, Installation, Home Owners

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We were living in our 2 car garage while building our 3200 sq ft house with Icynene. We are now living in our home and using the same amount of fuel to heat and cool the house as we were using in the garage.
Gary & Donna,