R38 Unfaced Batt Fiberglass Insulation, 64 Sq. Ft. Coverage, 13 x 24 x 48-In.

Johns Manville Formaldehyde-free insulation is made with proven fiberglass technology and consists of recycled and renewable content including a new organic plant-based binder that has no formaldehyde, acrylics, or dyes added. It offers the greatest thermal performance and can be used in new or existing attic floor/ceiling applications. Use of a separate vapor barrier may be required. Convenient pre-cut batts mean less cutting. This product helps save energy. It offers good sound absorption and inorganic glass fiber will not rot, mildew or deteriorate. GREENGUARD(TM) certified for superior indoor air quality.