Johns Manville Corp. Mineral Wool Insulation Bats TempControl™

Johns Manville Mineral Wool TempControl™ Batts are designed to provide thermal control in wood-stud cavities of exterior walls, basements, and heated crawl spaces. Availability: United States, Canada R-Values R-15 and R-23 Widths 15.25", 23" Lengths 47" Thicknesses 3.5" (R-15), 5.5" (R-23) JM TempControlTM mineral wool insulation is made from high-density, noncombustible fibers and helps delay the spread of fire. It also delivers exceptional thermal performance for the life of your home with an R-value of R-15 at 3.5 inches. Keep your family warm in the winter and cool in the summer while reducing your heating and cooling bills to save money year-round.