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Energy Efficiency and Durability

  • Question & Answers

    Need help with a mold issue.

    Hello All.  I am beside myself.  I will try to explain this so it is understandable.  We just did a complete remodel down to studs on our home.  We did…

  • Question & Answers

    Climate zone 5 wall assembly

    Hi all,Just wanting to toss a proposed wall assembly out there and see if the experts would change anything. Remodeling a 1961 home in Syracuse, NY. Wall cavities are 2x4 on…

  • Question & Answers

    Insulating a scissor truss

    INSULATING A 26’ SCISSOR TRUSS I am putting on a 26’ x 12’ addition to my living and dining area.  The truss is a 5/12 over 3/12 scissor truss.  I…

  • Question & Answers

    Help with my half-assed attic

    GBA enabled me to GC the energy aspects of the gut-renovation of my 1960s ranch (Maine coast, zone 6a) to a Pretty Good House level- completed in 2022.  I thought…

  • Question & Answers

    How to model and predict electricity usage for a heat pump

    The obvious question when considering a heat pump is how much electricity it will use and whether it will save money compared to other heating options. With a heat pump…

  • Question & Answers

    Upgrades to 1969 concrete foundation in maine

    I have a 1969 ranch in Maine that has a full basement. I get seepage through small cracks when the ground water builds up. The ground slopes towards the house…

  • Question & Answers

    Ceiling rim joist insulation on kitchen bump-out

    I currently have half of my kitchen ceiling removed to sister up joists of a sagging floor. My kitchen is a bump out in a two-story home. The attic of…

  • Question & Answers

    A-Frame cathedral ceiling roof insulation

    I have a question: In the case of an A-Frame new construction house, Zone 5A, we're planning to have glulam structure (60 degree slope) at 4-5' O.C. with 2x6 T&G…

  • Question & Answers

    Window flange + EDPM gasket

    Watching the Feb 25 BS*+Beer show with Peter Yost discussing applying car gasket technology to window sealing, got me thinking about using EDPM D-shaped sealing gasket as the seal under…

  • Question & Answers

    Cathedral roof insulation zone 5

    Hi, Working on a cathedral roof in upstate NY (zone 5) and have a question regarding insulation, and how it relates to moisture and venting requirements. The plan is: 2x12…