09 Nov '16, 10pm

Using Rooftop Solar to Meet the Energy Code

Using Rooftop Solar to Meet the Energy Code

This index has a reference of 100 for a home designed to meet the 2006 IECC. Lower numbers are better. A home that just meets the 2009 IECC, for example, would come in at an index of about 85 or 90. The 2012 IECC drops that into the 70s. If you make the house as efficient as possible by building a 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 squa...

Full article: http://www.greenbuildingadvisor.com/articles/dept/buildin...

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