High-Strength Mineral Soundproof Rock Wool Roll for Insulation of Curved Surfaces and Ducts

High-Strength Mineral Soundproof Rock Wool Roll for Insulation of Curved Surfaces and Ducts. High Fire Resistance: Class A1 non-combustible rating meeting EN 13501-1 and ASTM standards. Customizable Dimensions: Available in thicknesses from 25mm to 150mm and custom widths upon request. Excellent Sound Absorption: Sound absorption coefficient ranging from 0.75 to 0.95 NRC depending on thickness. Versatile Facing Options: Available with no facing, aluminum foil, glass cloth, ASJ, or PVC. Eco-Friendly Certification: LEED compliant with optional GreenGuard Gold certification.