R19 Unfaced Fiberglass Insulation, 48.96 Sq. Ft. Coverage, 6.5 x

Johns Manville Formaldehyde-free unfaced fiberglass rolls are for use in floors and ceilings/attics. Use of a separate vapor barrier may be required. They help save energy and provide good sound absorption. Glass fiber will not settle rot, mildew, or dete
Johns Manville Formaldehyde-free unfaced fiberglass rolls are for use in floors and ceilings/attics. Use of a separate vapor barrier may be required. They help save energy and provide good sound absorption. Glass fiber will not settle rot, mildew, or deteriorate. Rolls can be cut to any length. This product has been GREENGUARD® certified for superior indoor air quality.

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