Uploaded March 2026 | Updated September 2026, 45 minutes ago

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Tackling the notorious gambrel roof! Gambrel roofs are a tricky assembly to properly air seal and retrofit with insulation. This video details a retrofit solution to properly insulate, air seal, and vent an old gambrel roof structure in a cold climate. To prevent moisture-related deterioration, the project converted the roof to an unvented system with a vented over-roof, implementing a "chainsaw retrofit" for a flush, perfectly air-sealed roof-to-wall transition.

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License code: XKVLYSB992BIBRMW
Artist: : Benjamin Tissot