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Johns Manville 15.25-in x 47-in Unfaced Mineral Wool Batt Insulation with Sound Barrier Sound Barrier

Johns Manville 15.25-in x 47-in Unfaced Mineral Wool Batt Insulation with Sound Barrier Sound Barrier

Item #: 576707 |  Model #: MW0021

4.5 / 5 2 Reviews

15.25-in x 47-in Unfaced Mineral Wool Batt Insulation with Sound Barrier Sound Barrier

  • Made for interior walls to reduce noise traveling throughout the home
  • Melting point of 2000°F helps delay the spread of fire
  • Easy to cut and install
  • Unfaced/without a vapor retarder – can be added to existing insulation
  • For use in 2x4 wood-framed walls
  • JM is a partner of the Seal and Insulate with ENERGY STAR program
  • Batts are pre-cut for use in standard 8-ft walls with 24-in on-center stud spacing
Series Name N/A
Insulation Type Mineral wool
R-Value per Inch 0
Maximum R-Value 0
Width (Inches) 15.25
Length (Inches) 47
Thickness (Inches) 3
Coverage Area (Sq. Feet) 49.7
Package Quantity 10
Faced/Unfaced Unfaced
Sound Barrier Yes
For Use in Attics No
For Use in Basements Yes
For Use in Ceilings Yes
For Use in Crawlspaces No
For Use in Doors No
For Use in Duct No
For Use in Electrical No
For Use in Floors Yes
For Use in Garage Doors No
For Use in Masonry No
For Use in Plumbing No
For Use in Vents No
For Use in Walls Yes
For Use in Windows No
Fits 2 x 4 Walls Yes
Fits 2 x 6 Walls No
ENERGY STAR Certified Yes
Vapor Retardant No
Formaldehyde Free No
Package Weight (lbs.) 31.5
Warranty None

Product Documentation

Download these helpful files for this product.

  • Installation Guide

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