Johns Manville Formaldehyde-free Kraft-faced fiberglass rolls are ideal for insulating and sound proofing ceilings or 2' x 4' stud wall cavities with 16" on center spacing (exterior sidewalls, basement walls, floors and garage walls). Kraft facing serves as a vapor barrier to help manage moisture and includes tabs for easy stapling to wood framing. Glass fiber will not settle, rot, mildew or deteriorate. Rolls can be cut to any length. This product has been GREENGUARD(TM) certified for superior indoor air quality.
