Energy Efficiency and Durability- Page 5 of 665
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European superiority skylight edition!
If you've shopped around for the most efficient skylights in North America, you'll find two things.1.) the U-factors are much higher than windows with an equivalent glazing type (double pane,…
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Backup heat source, not wood
About to build a single story over a basement house in zone 5a in western North Carolina. All electric. I was considering a wood stove for heat/cooking in the event…
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Efficiency of Radiant ceiling panels vs in-floor hydronic heating
Hi all, I'm hoping for a discussion on the relative efficiency of delivering heat using hydronic radiant ceiling panels vs in-slab hydronic, cost aside. That is, assuming the same BTU…
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Distribution Efficiency in upper Midwest basement
I am an energy auditor in the upper Midwest, and I am trying to figure out how to accurately account for the benefits of duct sealing in what is very…
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Rim joist insulation – exposed masonry cores and no sill plate
Hello all, I live in zone 5a in a 100+ year old house. I’d like to insulate my rim joists (rigid foam with a spray foam perimeter) and I’m curious…
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Early 1970’s Reno: Options for upgrading insulation and air / vapor sealing from the inside?
Hello! I wanted to start by thanking everyone for their contributions; I've learned a lot from you all.I'm trying to figure out the best way to upgrade our insulation and…
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Insulating basement in MN
Hello,We are trying to finish a room in our basement, and in the process insulate the basement wall in that room from inside (house built in the 50s, Zone 6). …
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Air handler in attic
I live in midwest zone 5. For the second floor of my 1925 house, I need 50K heating and 22K cooling. My house came with an air handler in the attic,…
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How to calculate slab heat loss with porches and stone veneer?
I'm trying to calculate room-by-room heat loss to size a new mini-split, and I understand that I have to factor in the loss of the exposed slab. The question is,…
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ISO Recommendation for slab edge insulation at walkout basement, zone 6B
New residential construction in climate zone 5B, has a detail with which I'm not familiar, hoping you guys can set me straight. The plan includes a walkout basement with a…