Johns Manville SAFB Unfaced Mineral Wool Insulation Batts - All Sizes Product Thickness 11.81" If in any doubt

If in any doubt

you get a product that is a testament to this commitment

The compact size allows for easy transport and convenient installation anywhere on the roof where there is sufficient framing

and deck seal mounting flange

Tongue buckle legs for secure fastening

Johns Manville SAFB Unfaced Mineral Wool Insulation Batts - All Sizes Product Thickness 11.81" If in any doubtZone States Zone 1 AL, CT, FL, GA, IL, LA, MA, MD, ME, NC, NH, OH, PA, SC, TN, VA Zone 2 IA, KS, MI, MN, MO, OK, TX, WI Zone 3 AR, CA, CO, MT, NM, NV, UT Size Sq Ft Bag Batts Bag R Value 3 in x 16 in x 48 in 64 12 11. 1 3 in x 24 in x 48 in 80 12 11. 1 6 in x 16 in x 48 in 32 6 22. 2 6 in x 24 in x 48 in 48 6 22. 2 Johns Manville Sound Attenuation Fire Batt (SAFB) insulation is manufactured from inorganic fibers derived from volcanic rock.