John Manville Multi-Purpose Unfaced Fiberglass Insulation Roll

Johns Manville Formaldehyde-free multi-purpose roll insulation is for use in gaps around doors, windows, wall and window air-conditioning units. It helps save energy and offers good sound absorption. Inorganic glass fiber will not rot, mildew, or deteriorate.

This product has been GREENGUARD certified for superior indoor air quality.,Johns Manville Formaldehyde-free multi-purpose roll insulation is for use in gaps around doors,