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May 3, 2023 · Can I install R38 (12 in) insulation in 2x10 floors When opening each R38 batt, they are about 10in thick. A R30 is about 8 in thick, and I would have to pull it to fully expand. Is …
May 18, 2017 · I’ve been guilty of perpetuating a myth. Last month I wrote an article in which I said installing insulation, “cavities are filled completely with as little compression as possible.” But is …
Jun 2, 2025 · Like batts, compressing blown-in fiberglass insulation improves the R-value per square inch while diminishing the overall R-value. Also like fiberglass batts, some amount of …
Feb 1, 2025 · Several insulation types will work, including EPS, XPS, GPS, fiberglass, polyiso, or rigid mineral wool boards. This provides a continuous layer of insulation with no thermal …
Nov 4, 2023 · I would go with the insulation for 2 x 8 walls single product. The insulation people change the width, length and thickness, frequently. Rockwool would be the best unless you …
May 7, 2017 · I will getting inspected so does anyone know of a cheaper product that will give me r-30 in 7.5 inches of space or is it ok to just jam the regular r-30 in that space?
Nov 20, 2021 · Compressing batts will yield higher R per inch than splitting it. A compressed batt will have lower R in a given cavity. So, don't needlessly compress, but do compress if you …
To cover that up the best choice can be an R-25 insulation, which has 7 ½ ” depth. But considering facts you can also use R-30 insulation for your 2×8 joists.
Yes and no. You can compress the insulation to make it fit between the rafters, but you will lose a lot of r-value by doing so. Fiberglass insulation needs to be installed without being compressed …
Dec 11, 2016 · Don't use 2x8s; instead stagger 2x4s and make a double-stud wall. Fill it will dense-packed cellulose or fiberglass, or mineral wool batts if you want to make people …
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