26 Oct '16, 2pm

Great explanation of the new #Passivhaus renewable-facing energy standards from @PassiveHouseBB

PHI recognized that non-renewable forms of energy use by buildings needed to be rapidly phased out, so it devised a method to incentivize the use of renewable forms of energy in buildings. The research resulted in the overhaul of the existing Passive House A 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...

Full article: http://www.greenbuildingadvisor.com/blogs/dept/guest-blog...

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