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General Questions

  • Question & Answers

    Basement insulation

    Looking for recommendations on insulating a basement in climate zone 5a. It is currently unfinished, but will be finished at some point.Area is roughly 2000 sqft. The basement is full…

  • Question & Answers

    Filter box for regular & charcoal filters

    My questions are: – are the proposed filter sizes likely be sufficient for longevity? – are there issues putting two filters in the same box? (if so, what?) – what…

  • Question & Answers

    Sub-slab insulation in occasionally heated barn / living quarters

    I'm working on a barn-style outbuilding with three large connected garage bays, with living quarters above and a kitchen/living area behind. My question is: Knowing that the connected garage bays…

  • Question & Answers

    Anchor bolt placement near crawl space access door

    We are building on a block wall crawlspace foundation.  We hired out the block wall work, and specified exactly where we wanted the cast in bolts placed into the concrete…

  • Question & Answers

    Best way to seal conduits/wire chase from attic to basement

    I need to cap off a conduit/wire chase that runs from an unconditioned attic to the basement. I'm probably overthinking this, but I want to do this correctly since my…

  • Question & Answers

    r-32 heat pump in zone 5-6

    I'm considering adding a ductless heat pump to my house. A goal is to go with r-32 because of the phaseout of r-410a and some difficulties I've heard about sourcing…

  • Question & Answers

    Ceiling air barrier detail with plenum

    We are going to build a Pretty Good House in the PNW (zone 4c), using 2x6 24” oc af, with zip sheathing and 2” of CI. We’ve spent a lot…

  • Question & Answers

    Adding rigid foam to roof – leave EPDM in place?

    Hello all,During a reroof of my home, I will be insulating the deck with rigid foam, adding another layer of sheathing, and cellulose or batts between joists. Much of the…

  • Question & Answers

    Transition from kraft-faced walls to Intello ceiling

    Zone 6a - Minnesota. Ideally I'd use Intello Plus on the interior of the walls and the ceiling. However, the budget is a bit tight now. Therefore, would Kraft-faced insulation…

  • Question & Answers

    SIGA Wigluv vs 3M 8067

    This has been asked before but I had a few specific items to question. The prices are comparable enough. the Siga Wigluv is 1.5x the 3m as far as I…