Does rigid, thin R30 insulation exist? - DIY Home Improvement …
2010年6月13日 · One of the best and readily available insulations is polyisocyanurate foam boards but even that is around R7 per inch per inch. It would take a bit over 4 inches to give …
Rigid Insulation Installation (R-30) - DIY Home Improvement Forum
2008年2月3日 · insulation, higher insulation values can be obtained, by either framing furring strips (that permit additional insulation to be installed) or by adding rigid foam insulation under …
R-30 insulation in a ceiling framed with 2x8's
2017年5月7日 · Hey I need to put r-30 insulation in a ceiling framed with 2x8's regular fiberglass insulation requires 9" of space (2x10 framing). I have looked into spray foam which is pricey …
Insulation - attached garage ceiling - DIY Home Improvement Forum
2024年6月5日 · A Class III (paint) vapor retarder can be used if you have min R7.5 of continuous insulation (so see rigid foam board described below, which you would probably choose 2" …
Need help with insulation on a vaulted ceiling
2024年6月4日 · Right now, there is zero insulation. While r30 isn't code, it's infinitely better than nothing. And while the insulation can impact the dew point within an assembly, the real ticket …
Vent Baffles roll forming machine - DIY Home Improvement Forum
2024年9月23日 · That is 12" or 14" thick for batt insulation. You don't have the room for the baffle. If you are furring out the 2x12, and for some reason you still don't like the cheap, lightweight, …
Insulating a sloped ceiling - DIY Home Improvement Forum
2018年1月30日 · Been awhile but if I were building today I would be using Roxul. For your 2x12's (11.25") I would probably use 5.5" plus 3.5" plus 1" rigid. That would be r-23 plus r-15 plus r-5. …
Insulate joist bays along with radiant heat, how - DIY Home …
2008年11月28日 · 2) Tack in some 1/2 rigid reflective foil insulation leaving about a 2" space between the pex and rigid insulation (a little "heat cushion"). 3) Staple some R30 pink-panther …
Best way to achieve a vaulted ceiling with tight room for insulation ...
2023年1月31日 · I have a vaulted ceiling in one room with 2x4 rafters, so only about R-13 insulation. Sure my heating bill is probably a bit higher, but the 'insulation police' haven't …
Vapor barrier + floor insulation on shed/office
2019年11月3日 · But I'd only be able to get R-19 insulation (6.25") with 6" joists (plus a little room beneath the shed. R-30 insulation looks to be 8.25" and even the R-30 Rockwool is 7.25". But …