It should be noted, however, that the brown paper (or facing) on some fiberglass batting is flammable. R13 Thermafiber Fire and Sound Guard Plus Mineral Wool Insulation Batt (16-Bags) Add to Cart. Both unfaced fiberglass and denim insulation have received Class A fire ratings. R15 Thermafiber Fire and Sound Guard Plus Mineral Wool Insulation Batt. Class A denotes the ability of a substance to withstand severe exposure to fire originating from sources outside the building. įire resistance: In the U.S., the fire resistance of materials is generally rated as Class A, B or C, according to the applicable standards published by both Underwriters Laboratories and ASTM International. The same thickness of denim scores 1.15, which means blue beats pink again when it comes to blocking airborne sound transmission. The higher the NRC rating, the better the sound absorption. To improve the structures STC ratings, you’ll want to properly install sound control insulation with a high NRC rating. Fiberglass batting with a thickness of 3.5 inches (8.9 centimeters) delivers an NRC of 0.90 to 0.95. The NRC (Noise Reduction Coefficient) value represents the percent of sound directed at the surface that is absorbed by the fiberglass acoustic insulation. NRC values commonly range from 0 (reflects all sound) to 1 (absorbs all sound), but it's possible to have an NRC above 1, depending on the material's shape or surface area. With 77.52 square feet of coverage, it's perfect for insulating attics and walls of all sizes. Made from recycled denim, this unfaced batt insulation provides superior thermal and sound control, so you can enjoy a peaceful and energy-efficient living space. Acoustics: Contractors and builders often mention the noise reduction coefficient, or NRC, when discussing the acoustic performance of insulation. Cover your home in comfort and sustainability with UltraTouch R-13 Attic & Wall Insulation.
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