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More stories about Styrofoam

  • Will Carpet Stifle a Radiant Slab?

    Q. I'm finishing a basement room for customers who want to put carpet over the radiant slab. I'm concerned the carpet will insulate off some of the heat, but I can't talk them out of it. The slab is 4 to 5 inches thick, and the 1/2-inch PEX tubing is laid out on 12-inch centers, with 11/2 inches of...

  • Q&A: Rigid Foam Under Scissors Trusses

    Q: We’re considering installing a layer of 1-inch rigid foam insulation on the underside of a cathedral ceiling framed with scissor trusses. Is the foam a vapor barrier, or will we need to install a poly vapor barrier on the interior side of the foam? Will the foam cause problems when it comes time...

  • Q&A: Insulated Wood Floor Over Concrete

    Q: We are looking for a detail for laying a wood floor over a previously uninsulated slab. What’s the best way to go about this?

  • Ten Tough Energy Questions

    Puzzled by conflicting energy advice? We asked our panel experts to help out by summarizing the latest thinking on a number of thorny issues.

  • Ten Tough Energy Questions

    Puzzled by conflicting energy advice? We asked our panel experts to help out by summarizing the latest thinking on a number of thorny issues.

  • High Performance Wall Systems

    How can you get top energy performance without blowing the budget? Several builders reveal their latest answers to this perennial question.

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  • Building With Style: Energy-Detail Dilemmas