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Owens Corning R-30 is unfaced fiber glass roll insulation, 9 inches thick, for roof, ceiling and wall cavities in wood or metal framing. It can be stapled or friction-fit, cut with a utility knife, and is inorganic, so it does not corrode steel, aluminum or copper and will not decay or slump in the cavity. R-30 suits attic floors, cathedral ceilings and high-R wall assemblies where a single thick layer is wanted. Against batts, rolls cover long runs with fewer seams, but unfaced rolls have no vapor retarder, so a separate barrier is needed in most cold-climate walls.
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This is unfaced, flexible fiber glass insulation in a continuous roll, 9 inches thick with an R-value of R-30. It is made for roof and ceiling applications and for interior and exterior walls. It goes in wood or metal framing cavities or between furring channels.
It can be stapled in place or friction-fit, and it trims with a utility knife. It is inorganic and non-corrosive to steel, aluminum and copper. It is dimensionally stable and will not decay or slump in the cavity. It also improves interior noise control.
