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R11 3 1/2 in x 16 in Johns Manville FSK Faced Insulation
JM Formaldehyde-free thermal and acoustical insulation is made of long, resilient glass fibers bonded with our bio-based binder. A wide range of thermal resistance R-values is available to provide thermal control for both vertical and horizontal applications. JM insulation is available unfaced or with a variety of facings, including kraft or foil vapor retarder.
213.3 sf/bag
For California Residents:
WARNING:Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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