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Other stories by Joe%20Lstiburek

  • Hurricanes: Why Stucco Walls Got Wet

    Designs, methods, codes, and workmanship all played a role in Florida’s soggy storm experience.

  • Q&A: Double-Side Vapor Barrier

    Q: As part of the gut remodel of a 1940 house near Houston, Texas, we installed 3/4-inch rigid foam over the exterior wall sheathing, followed by vinyl siding. On the interior, we exposed the 2x4 studs and installed fiberglass batts. Then we installed 1/2-inch foil-faced rigid foam followed by...

  • Q&A: Right Size for an Insulating Air Space

    Q: How big does an air space need to be before it stops working as insulation and starts working as a convective loop?

  • Q&A: Does Wood Siding Need an Air Space Behind It?

    Q: I’m considering installing wood siding over a rain screen, but I’m unsure whether the potential benefits justify the extra expense. What is the real benefit of an air space behind wood siding?

  • Q&A: Installing Cedar Siding Over Rigid Foam Sheathing

    Q: What are the risks of installing cedar siding directly over foil-faced rigid foam insulation? Should tar paper or housewrap be used as well?

  • Q&A: Ceiling Vapor Barrier — Yes or No?

    Q: Should you put a vapor barrier in an insulated ceiling or not? I build in a cold climate, where many longtime builders swear that you shouldn’t put a ceiling vapor barrier in. The reasons go something like, "Because you have to let the moisture escape," or "Because the house has to breathe out...