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Ray Williams

At the time of this video, Ray Williams was a superintendent with MARK IV Builders, a custom building and remodeling company in Cabin John, MD. He has since moved on to another company, I forget the name of it, though...

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Airsealing Leaks During a Remodel: Framing, Framing, Framing

Doubling the square footage of a house while cutting the air leakage in half delivers extraordinary value
Aug. 24, 2023
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Weatherization Nation 2: Digging to Higher Ground

How to dig your way out of a hole with gravity, foundation drainage, and common sense
Jan. 20, 2023
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Animation: Sealed Insulated Crawlspace Details

A dry and healthy crawlspace is sealed tightly against water and air leaks
Feb. 4, 2020
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Smoke-Testing an Old House Before Renovations (Air Leaks You Can See!)

Using theatrical smoke to illustrate air leakage pathways to customers and new employees
July 17, 2017