Air-Sealing Tips for Efficiency That Lasts // Part 4: Protect Your Air Barrier

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Air-Sealing Tips for Efficiency That Lasts // Part 4: Protect Your Air Barrier

This is part 4 of a series that describes how to air seal the most difficult parts of buildings. A service cavity and vented rainscreen promote durable airtightness.

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Attics & Crawl Spaces

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December 29, 2015

Attics and crawls are not appendages but integral organs of the system [continue reading]

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Hempcrete: Eco-Friendly and Unique

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September 28, 2015

Using hemp as an insulator might seem far-fetched. Laughable even. But this green sustainable material just might be the answer to many builders’ problems. Here’s why you should give it a chance. [continue reading]

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Honey, why is water dripping from the ceiling when it's bright and sunny outside?

Author: Bob Wendt
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January 01, 2015

This past February I received the following e-mail: Hi, Guys, We've had trouble with water spots on the ceiling since late last fall, and our builder tells us it's the result of melting snow—... [continue reading]

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V-Strip Weather Strip Update: Two Years Later

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November 21, 2014

An important factor in the airtightness of a building, and its energy efficiency, is the amount of infiltration allowed through closed windows and doors. Typical old double-hung windows are especially prone to infiltration. [continue reading]

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Reflective-Insulation and Radiant-Barrier Systems

Author: Luke Rogers
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December 30, 2013

A reflective-insulation system consists of a low-e surface, like aluminum, which is installed facing an enclosed air space. Enclosed air typically has an R-value of about R-1 per inch, but by reducing the radiant-heat transfer ... [continue reading]

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Unvented Attics: Encapsulating with Spray Polyurethane Foam

Author: Brett Dillon
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November 01, 2013

The idea behind venting to remove moisture is to allow it to escape out. Unfortunately in humid climates, it's much more complicated. [continue reading]

Angry Air!

Paul Raymer

Angry Air!

John Tooley said, “Air is like crooked rivers, crooked people, teenagers, and cheap labor. It always seeks the path ...

Energy Efficiency is Increasingly Popular With Home Buyers

Gary Ashton

Energy Efficiency is Increasingly Popular With Home Buyers

The National Association of Home Builders (NAHB) is a trade association based in Washington. It boasts more than 140,000 members across ...

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