Posted on June 20, 2016 by Scott Gibson
Factories designed to turn out prefabricated components for Passive HouseA residential building construction standard requiring very low levels of air leakage, very high levels of insulation, and windows with a very low U-factor. Developed in the early 1990s by Bo Adamson and Wolfgang Feist, the standard is now promoted by the Passivhaus Institut in Darmstadt, Germany. To meet the standard, a home must have an infiltration rate no greater than 0.60 AC/H @ 50 pascals, a maximum annual heating energy use of 15 kWh per square meter (4,755 Btu per square foot), a maximum annual cooling energy use of 15 kWh per square meter (1.39 kWh per square foot), and maximum source energy use for all purposes of 120 kWh per square meter (11.1 kWh per square foot). The standard recommends, but does not require, a maximum design heating load of 10 W per square meter and windows with a maximum U-factor of 0.14. The Passivhaus standard was developed for buildings in central and northern Europe; efforts are underway to clarify the best techniques to achieve the standard for buildings in hot climates. buildings are up and running on both sides of North America.
In Pemberton, British Columbia, a company called BC Passive House operates the BC Passive House Factory, a 16,146-square-foot production facility that makes panelized parts for Passive House buildings as well as panels for timber-frame buildings.
Vancouver-based Hemsworth Architecture, which designed the building, says it is the first of its kind in North America.