HPWH vented to *and* from attic

Question about where to duct air from for a HPWH.  I’ve looked around a bit, but haven’t found an answer to this specific question, in my climate.We are in the… Question about where to duct air from for a HPWH.  I’ve looked around a bit, but...

Protect new CMU wall from backfill?

Hi all, I just had a new CMU wall, ~20″ high put up between the finished portion of my basement (slab poured by previous owner) and the portion that is still… Hi all, I just had a new CMU wall, ~20″ high put up between the finished portion of my basement...

Exposed Rockwool Comfortbatt in conditioned space?

I believe you are allowed to have exposed Rockwool Comfortboard in your conditioned space. (e.g. as a thermal barrier over rigid foam when used to insulate rim joists in an… I believe you are allowed to have exposed Rockwool Comfortboard in your conditioned space....

Ground Roof on FPSF

Hello,I am working out the details on my fpsf, zone 6 coastal maine.  I have 4 feet of wing insulation all the way around and I am using type II… Hello,I am working out the details on my fpsf, zone 6 coastal maine.  I have 4 feet of wing insulation all the way around...

Second floor radiant heating

Hi,I installed heat pump, staple-up hydronic heating in our first floor (from the crawl space), and we love it. We are now building out our second floor, which right now… Hi,I installed heat pump, staple-up hydronic heating in our first floor (from the crawl space),...
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