26 Dec '11, 1pm

@buildllc SF insulates well (air tightness) but pipes & wires get buried.

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 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 i...

Full article: http://www.greenbuildingadvisor.com/blogs/dept/musings/ca...

Tweets

Conservative on Global Warming

planetsave.com 26 Dec '11, 3pm

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care2.com 25 Dec '11, 2pm

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greenbuildingadvisor.com 25 Dec '11, 5pm

First question ever asked here. We're building a shop in Upstate SC, mixed humid climate. We are insulating it for comfort...

A Big Picture Look at Global Warming

A Big Picture Look at Global Warming

skepticalscience.com 04 Jan '12, 4pm

You seem to not understand the 'big picture.' Note figure 1 - labeled - Change in Earth's total heat content. Since 2001 t...

Global Warming Trend — Clear as Day

Global Warming Trend — Clear as Day

planetsave.com 22 Dec '11, 3pm

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sg.news.yahoo.com 20 Dec '11, 1pm

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terrapass.com 01 Jan '12, 3am

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buildinggreen.com 22 Dec '11, 3pm

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Global warming means fewer kisses this Christmas

Global warming means fewer kisses this Christmas

mnn.com 24 Dec '11, 3pm

As those of us in the Northeast "enjoy" a practically balmy Christmas Eve and an only slightly less tropical Christmas Day...

Global Warming and Water Shortages | Peak Oil N...

peakoil.com 08 Jan '12, 12pm

According to Tetra Tech’s analysis, parts of Arizona, Arkansas, California, Colorado, Florida, Idaho, Kansas, Mississippi,...

40% of Earth's Land To Undergo Major Ecosystem Change Due To Global Warming

40% of Earth's Land To Undergo Major Ecosystem ...

treehugger.com 19 Dec '11, 6pm

NASA's Jet Propulsion Laboratory has released a stark, equal parts intriguing, exciting and terrifying, image of the predi...