159 - Climate Zone 7 Ceilings, Universal Design & Alternative Foundations

Three listener questions lead to three very different building science discussions—from cold-climate roof assemblies to aging-in-place design and innovative foundation systems. The episode begins with a Climate Zone 7 tongue-and-groove ceiling question, comparing ZIP sheathing and smart vapor retarders for airtightness and moisture control beneath a vented attic. From there, a question about…