Energy Efficiency and Durability
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Insulation in an attic
I am trying to insulate an attic room in a one hundred year old house.The roof rafters are 2x 4s that are actually 2 x 4,5 inches of rough cut…
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Treatment of structural slab over conditioned space
Hi, I am currently starting a build that included a portion of a building with a composite concrete deck over a basement conditioned space. As of our current design, we would…
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Insulating 3rd floor living space w/slate roof
We are in the early stages of renovating a 1906 brick four square in St. Louis. We are in climate zone 4. It has a slate roof that was newly…
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Wet block walls and adding insulation
Good morning, I've seen it said on this site by Martin Holladay and others that a block wall can stay wet for a century or something to that effect, but he…
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ZIP R3 sheathing and interior insulation – climate zone 3
General contractor that has also worked for design firms in the past. I am in the process of designing/ building our "dream" home. I am aware of all of the…
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Mixing exterior insulation types
I'm in NH (CZ 6A) doing an exterior remodel on my 1950 ranch using 7 1/4" Larsen Trusses over a 2x4 structural wall. The existing wall is standard drywall, 2x4…
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Standing seam roof
What is the recommended gauge for a standing seam metal roof?
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Insulating a 1.5 story bungalow, climate zone 6A
Hi All. We recently purchased a 1914 bungalow in coastal Maine (climate zone 6A). We are wrapping our heads around the scope of our remodel (the last upgrade was in…
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Hard hvac duct installation
Hi, MD clubs contractor installed new hard pipe ducts. Upon close inspection (peeling back the bubble wrap) it appears as though all the taps/take offs were installed with the flange…
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Building greener on a budget: can we safely use mixed-size plywood?
Hello Folks, We’re taking on the challenge of building our first home and garage in the Northeast (climate zone 6a), and doing our best to keep costs low while still…