Johns Manville Multi-Purpose Unfaced Fiberglass Insulation Roll 16 In. W X 4 Ft. L
JM Unfaced Formaldehyde-free™ fiberglass insulation offers a variety of R-values and provides effective thermal and noise control. This formaldehyde free unfaced multi-purpose insulation roll is perfect for small projects or repairs. Great to use in small gaps around doors, window, HVAC and plumbing. Unfaced/without a vapor retarder so it can be added to existing insulation. Unfaced rolls are great for new construction, remodels, walls, floors, ceilings, basements, attics and crawlspaces, and are available for wood or steel stud framing. They can be used with a separate vapor retarder when moisture control is required. JM insulation is made from bonded glass fibers that are dimensionally stable and will not slump within the cavity, settle or break down during normal applications.
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