Insulation For 2x8 Cathedral Ceiling

I want to properly insulate my cathedral ceilings and was thinking to spray 2 inches of closed cell foam to sheathing then fill with dense packed cellulose. And owens corning ecotouch high density insulation products are designed specifically for these rafters. Bernice from midland ontario wants to know how to get more insulation into her vaulted or cathedral ceiling the common problem with structures like this that we call compact roofs is that there is not usually enough space for a lot of insulation and a lot of ventilation.

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What You Need To Know Before Insulating A Cathedral Ceiling

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Insulate a cathedral ceiling by ensuring there is no opportunity for drafts to get into the room.

Insulation for 2x8 cathedral ceiling.

What size insulation for 2x8 floor joists. R30c and r38c are available in both kraft faced and unfaced. Ft bag 8 bags pallet 64 pieces 506 64 sq. This insulation is also designed specifically for rafters in cathedral ceilings and are usually made of 2x10 s or 2x12 s.

Check the joists and wall plates for any holes or openings. I am wondering if i can attach craft paper and pine paneling to the 2x8 rafters and then fill the bays with cellulose. In fact when the only space you have is that left by a 2x8 or even a 2x10 you really can t do a perfect job of both. Spray foam is a very expensive option however.

Foil faced iso board can be cost effective insulation for finished attics and cathedral ceilings. Stand on a ladder and using a caulk gun seal any areas where there is visible wiring or plumbing. The rafters in cathedral ceilings are usually made of 2x10 ft. R 30c and r 38c are available in both kraft faced and unfaced.

In most cases however insulation will not help prevent moisture. Seal all ceiling openings. The right way to insulate attics and cathedral ceilings with batts using certain t. Foam board insulation would be a more economical especially if you are supplying the labor see photo.

X 48 in 8 pieces 63 33 sq. If the shock of stepping out of a nice warm bed onto a chilled floor has you sleeping in thermal socks insulating your floor might help.