June 18, 2000


High performance building envelopes require controlled ventilation systems, sealed combustion appliances and allow the use of innovative air distribution systems. The optimum controlled ventilation system in all climate zones is a supply ventilation system that allows for filtration of outside supply air and the pressurization of building enclosures to exclude environmental contaminants. The high performance aspects of the building envelopes allow for the simplification of duct distribution systems. Advanced space conditioning involves the integration of a building’s heating, ventilating and air conditioning (HVAC) system with the building enclosure or building envelope.