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The Pretty Good House, Volume 2

The Pretty Good House, Volume 2
Posted on: 11/11/2016|11:11; Source: greenbuildingadvisor.com; Category: Energy Efficiency and Renewable Energy
Subtitle:  A structural engineer with a flair for drawing publishes an updated guide to this popular approach to building better-than-code houses Images: 

A Maine-based structural engineer has produced an updated handbook about “The Pretty Good House,” a middle-ground approach to building that falls somewhere between basic code compliance and pricey 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. or net-zero energyProducing as much energy on an annual basis as one consumes on site, usually with renewable energy sources such as photovoltaics or small-scale wind turbines. performance.

Helen Watts turned out the first volume of the Graphic Handbook of the Pretty Good House in 2013. (GBAGreenBuildingAdvisor.com bloggers Chris Briley and Phil Kaplan discussed Watts's 2013 book in a podcast called An Update on the Pretty Good House — Part 1.)

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