JM Johns Manville R-19 FSK Faced Fiberglass Batt Insulation 24 in x 48 in x 6-1/2 in (144 sq-ft)

JM R-19 faced fiberglass batt insulation provides thermal and acoustic performance, a vapor retarder, and fire-resistant construction.

• The description claims the insulation meets a 25/50 or less fire-hazard classification per ASTM E84.
• The description claims the insulation is formaldehyde-free and made to avoid off-gassing formaldehyde.