In the 70's and 80's passive solar house design was a popular response to new energy conservation concerns. Often big expanses of glass on south-facing walls were used in combination with concrete, masonry, or even containers of water to act as heat-collecting thermal mass. In the last decade these ideas have inspired a new approach in Germany called the passive house. In their colder climate, with the attention to careful computer analysis, the starting point is minimal use of heating energy as a building standard. The resulting key elements are very tightly constructed and very heavily insulated shells with mechanical ventilation and very small heaters. Aspects of the earlier passive solar design come into play too.
Dan Johnson, LEED AP, is a member of the team at Arkin Tilt Architects, located in Berkeley. He interned at Integrated Design Lab in Spokane, Washington which conducts sustainability studies. At Arkin Tilt Architects Dan specializes in crunching the numbers for energy use designs in the office.
3/5/09 
Small Firm Forum: Passive Solar/ Passive House
Come hear Dan Johnson, LEED AP of Arkin Tilt Architects talk about passive house design and technology.
Time: Noon - 1:30pm
Location: AIA East Bay Chapter Office, 1405 Clay Street, Oakland .
Contact: 510/464-3600
Cost: None; this program open to all. Please RSVP.
1.5 CES/LU, HSW/SD
For more information: 510/464-3600
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