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This is a 15 in. wide, 25 ft. long unfaced fiberglass roll rated R-30, sized for 16 in. on-center framing in attics and ceilings. It is formaldehyde-free, made of bonded glass fibers that resist slumping and settling in the cavity, and can be layered over existing attic insulation. Unfaced rolls need a separate vapor retarder where moisture control matters, so faced batts or blown-in insulation are simpler for some jobs. It suits attic and ceiling retrofits where a long, uninterrupted run beats piecing batts.
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Owners and installers describe this roll as straightforward to lay in an open attic and effective at cutting heat gain and dulling noise. Complaints center on the itch and dust of handling fiberglass and on the extra work of adding a vapor retarder.
This unfaced fiberglass insulation roll is rated R-30 and measures 15 in. wide by 25 ft. long, covering 31 sq. ft. It is made for 16 in. on-center framing in 2 in. x 10 in. attics and ceilings. It can be added over existing attic insulation.
The insulation is made from bonded glass fibers that are dimensionally stable. It will not slump in the cavity, settle or break down during normal applications. It is formaldehyde-free and helps with thermal and noise control.
Unfaced rolls suit new construction, remodels, walls, floors, ceilings, basements, attics and crawlspaces. They work with wood or steel stud framing, in residential homes and commercial buildings. A separate vapor retarder can be used when moisture control is required.
