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Vapor Venting An Unvented Roof: In Praise of Belts and Suspenders

Vapor Venting An Unvented Roof In Praise of Belts and Suspenders "Classic Ridge Rot" documented by the Building Science Corporation in Alaska Planes can fly safely with one engine. And you can keep your pants up with just a belt. But if you're looking to be protected from fools, then adding suspenders to the belt might be what set … read more

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How To Stay Airtight Without A Service Cavity

How To Stay Airtight Without A Service Cavity Intro / Caveat As you may know, 475 recommends you use a service cavity on the interior of high performance, airtight building envelopes. We've enumerated the values of service cavities many times, in many ways. So to be clear, our stance on the subject remains firm: service cavities are the b … read more

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