Monthly Archives: November 2011

Air and Vapor

Posted on November 28, 2011 by

Let us quote Dr. Joe Lstiburek: “Today walls [and roofs] need four principal control layers—especially if we don’t build out of rocks. They are presented in order of importance: 1. a rain control layer 2. an air control layer 3. … Continue reading →

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475 Featured in Green Building Advisor

Posted on November 28, 2011 by

The influential green building construction website Green Building Advisor featured 475 this past Friday, in a blog post by Martin Holladay called European Products for Building Tight Homes. Martin surveyed our initial product offerings including Pro Clima tapes and Intello … Continue reading →

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The service cavity – making airtight construction easy!

Posted on November 22, 2011 by

In the development of Passivhaus, the focus on airtightness of the building envelope had as goals to both increase energy efficiency as well as protect the structure from condensation and all its disastrous consequences (mold, fungus, rot leading to sickness … Continue reading →

Posted in Airtight construction, Buildings-Energy-Climate, Technical Notes | Tagged , , , , , | 2 Comments

Celebration of International Passive House Days

Posted on November 18, 2011 by

475 was proud to participate in  the global event International Passive House Days on November 12th with a wine reception featuring the documentary Passive Passion. The filmmaker Charlie Hoxie was in attendance, along with a great group of people from around … Continue reading →

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Getting our EnergyHub Monitoring set up!

Posted on November 4, 2011 by

A clean install of the EnergyHub monitor. The owner of Brooklyn Passive House #1 received their August electrical bill. For this 5750 sqft row house to be conditioned to 68 degrees during one of the hottest months on record cost … Continue reading →

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Passive Passion: A Documentary

Posted on November 3, 2011 by

Great documentary and straightforward explainer to the history and technology behind the Passive House Movement! ‘Passive Passion’ screening at New York Architecture & Design Film Festival “Passive Passion, a 21-minute documentary on a stringent German energy-efficiency standard, was selected for the … Continue reading →

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