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Energy Efficiency and Durability

  • Question & Answers

    Roof Trusses & Insulation

    Hi GBA Community,New build in Zone 5. I'm wrapping up the Roof Truss design and I'm having attic space built in. The designer is including a energy raised heel into…

  • Question & Answers

    Exterior wall – bay containing mineral wool has some visible moisture on VR

    Hello,noticed something odd today. Might not be odd, but I thought it was. I have a few bays of my exterior wall (above grade) that have mineral wool insulation in…

  • Question & Answers

    Historic 1880 brick home- insulation alternatives

    Good day, I am trying to make my historical ( old school house) brick home warmer for the Winter, anything new with regard to this?I live in WNY region, and…

  • Question & Answers

    Closed cell foam

    I am in zone 1 in Louisiana. Is the safest option for a conditioned attic closed cell foam and say rock wool against the foam? I would prefer the flash…

  • Question & Answers

    Double-Stud Walls in a Hot Climate

    Okay so, I am building in the Philippines and have purchased a half built house. The challenges in that aside I have questions centered around keeping the place cooler. I…

  • Question & Answers

    Vapor Retarder and Insulation Between Unfinished Basement and First Floor

    Hi, My mom just moved into a new house in New England.  It's mostly well insulated, except for one glaring flaw:  the floor to the house site above a basement…

  • Question & Answers

    Ground floor cantilever protection

    Zone 5 (Ohio)House has a section of the first-floor kitchen cantileverd about 2' +/- with only about 12" clearance to grade.  It's also on the north side of the house,…

  • Question & Answers

    Heat Loss Calculations and Minsplit Sizing

    I am about to build a new house and have been playing around with heat loss calculations to gain some perspective on the size of mini-split I need before I…

  • Question & Answers

    Precast Residential in Florida

    Im a new guy here and have been following some of the posts here from poeple like Sal Lombardo. The Florida coastal environment obviously has storms, humidity, salt-corrosion, intense direct…

  • Question & Answers

    Shed roof insulation

    Hey - I think I'm on the right track here but just need some confirmation before I go down the wrong path.  So the previous owner added an addition on…