Won’t sealing my building lead to indoor air quality problems?
Your building does need to be ventilated. 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 an “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 spray polyurethane foam while still providing controlled and energy efficient ventilation.
Your building does need to be ventilated. 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 an “air exchanger” which is designed to pre-condition (either warm or cool) the incoming outside air with the outgoing exhaust air.
