Lowe's Home Improvement
FREE PARCEL SHIPPING on Qualifying Orders
Roxul Wood Stud R30 15.25-in x 47-in Unfaced Stone Wool Batt Insulation with Sound Barrier

Roxul Wood Stud R30 15.25-in x 47-in Unfaced Stone Wool Batt Insulation with Sound Barrier

Item #: 386579 |  Model #: RXCB301525

4.46 / 5 26 Reviews

Wood Stud R30 15.25-in x 47-in Unfaced Stone Wool Batt Insulation with Sound Barrier

  • Better fit, flexible edge compensates for normal frame variability, cuts easily
  • Made from natural and recycled materials - user friendly, no fiberglass in product
  • Easier and faster to install
  • Water-resistant
  • Non-combustible, fire-resistant up to 2150 F
  • Excellent sound absorbency
  • GREENGUARD Certified; Chemically inert - CFC and HCFC free product and process
  • Does not promote growth of fungi or mildew
  • Friction fit to ensure optimum performance, no sag over the years
Series Name Wood stud
Width (Inches) 15.25
Length (Inches) 47
Thickness (Inches) 7.25
Coverage Area (Sq. Feet) 29.9
Package Quantity 6
Fits 2 x 4 Walls No
Fits 2 x 6 Walls No
ENERGY STAR Certified Yes
Vapor Retardant No
Formaldehyde Free No
Package Weight (lbs.) 40.35
Warranty None
For Use in Garage Doors No
For Use in Doors No
For Use in Ceilings Yes
For Use in Vents No
For Use in Electrical No
Sound Barrier Yes
For Use in Windows No
For Use in Masonry No
For Use in Plumbing No
For Use in Floors Yes
Maximum R-Value 30
Insulation Type Stone wool
For Use in Basements Yes
For Use in Duct No
R-Value per Inch 4.2
Faced/Unfaced Unfaced
For Use in Walls Yes
For Use in Crawlspaces Yes
For Use in Attics Yes
Community Q&A
  • Save Item
    Save Item Help
    Save an item to your
    • Lists to collect ideas and plan future projects.
    • Home Profile to organize and store details about your home.
  • Set a Reminder Save Item Help

    Set a Reminder and we'll send you an email when it's time to stock up on items you buy regularly or seasonally, like air filters, fertilizer or mulch. Use notes to record details (quantity, gift recipient, etc.).

  • Go to Your Account