Building Performance

Rev Up the Vapor Engine
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Rev Up the Vapor Engine

In the ongoing debate over which is better: plywood or OSB? what Joe Lstiburek... More

Vapor Retarders and Continuous Exterior Insulation
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Vapor Retarders and Continuous Exterior Insulation

Dr. Joe's right, this isn't a complicated building code issue. Except that it is. More

Substituting Solar Panels for Insulation in the Energy Code
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Substituting Solar Panels for Insulation in the Energy Code

The ERI path allows buildings to comply with the energy code in a completely... More

Airtight New Homes: Top Trouble Spots
How Buildings Learn
How Buildings Age
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How Buildings Age

Joe Lstiburek provides the deep background on moisture's effects on buildings over... More

Work With WAP? Apply Here.
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Work With WAP? Apply Here.

There's an opportunity to take the BPI exam for free. More

A Habitat Energy Makeover
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A Habitat Energy Makeover

Donated labor and materials made this building-science feat feasible More

Wastewater Heat Recovery Systems
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Wastewater Heat Recovery Systems

Here’s how to make it less expensive to take a shower. More

A High-Performance Country Cottage
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A High-Performance Country Cottage

Mixing curb appeal with ground-breaking wall framing, this home could be heated... More

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