Questions- Page 2400 of 3124
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Can I use two layers of Tyvek in a wall assembly without moisture problems?
I am building a house which has a REMOTE wall system in it (foam "outsulation"). Although I passed on the relevant information to the builder, who is usually on top…
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Can I install mini split units on the same wall?
I'm looking to install a 19 SEER Mitsubishi 24000 BTU mini split system on my garage. I'm limited in where I can put the outdoor unit, so my desired location…
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I am building a new home in nw Indiana that will be spray foamed through out.
1800sq ft ranch-2 inches eps under slab in basement. 2 inches closed cell on basement walls 3 inches in rim joists 2 by 6 walls filled with open cell on…
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Wall assembly (Zip R) for mixed humid
Hey Folks, My architect has planned a 2x4 wall with Zip R 1" foam sheathing. It will likely have batt or blown insulation. I see a ton of Zip sheathing…
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retrofit basement slab edge insulation?
Greetings! Long time lurker, first time poster. Thanks for all the great info. Searched the archives, but cant seem to find an answer. zip 12572, NY Hudson Valley Zone 5A…
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Best way to improve 2×4 stud wall air sealing in 1960’s house ?
A friend is renovating the living room in a recently purchased house that was built in the late 1960s. Location is in the mountains of Virginia, climate zone 4. The…
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Roof trusses — Why not whole-house trusses?
I saw the picture of the attic room roof truss in this recent discussion https://www.greenbuildingadvisor.com/community/forum/energy-efficiency-and-durability/39005/basic-beginner-air-sealing-questions and was also recently looking at double stud and Larsen truss building methods and it…
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Firestone ISO-R foam. 1″ R value? Worth keeping?
The previous owners had our house (1957 bungalow in Zone 7) wrapped with 1" Firestone ISO-R foam and then vinyl siding nailed onto the foam. Not only is 1" not…
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New study on heat pump water heaters’ reliance on the home’s heating system and viability of ducting the HPWH
https://www.aceee.org/files/proceedings/2014/data/papers/1-1203.pdf This came out sometime in 2014 and I haven't seen anything about it before. The points that I took from it are: The heat "stolen" by the HPWH is…
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Insulating solid brick house
Hello! I've been reading this forum for awhile now and there's so much good information about insulating I don't know which direction to head in. I have a 1950s ranch…