R-13 Unfaced Fiberglass Wall Batt Insulation (15 in x 93 in)

Johns Manville R-13 unfaced fiberglass batts are pre-cut for standard 2×4 wood-stud walls to help reduce heat loss and improve comfort. The formaldehyde-free, unfaced design installs by friction-fit between studs and also helps with sound control.

Key Features:

• Sized for Standard 2×4 Walls: 15-in wide batts for 16-in on-center wood stud cavities and 8-ft wall height.
• Thermal + Sound Performance: R-13 insulation helps improve energy efficiency while providing sound control in interior wall assemblies.
• Easy Friction-Fit Install: Unfaced batts press in place between studs and can be added over existing insulation.
• Durable, Noncorrosive Material: Fiberglass wont rot, mildew, or deteriorate and is noncorrosive to wiring, pipes, and metal components.
• Indoor Air Quality & Efficiency Programs: Formaldehyde-free and ENERGY STAR/Greenguard certifications listed for this product line.

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What wall cavities does this insulation fit?
A: Its designed for 2×4 wood-stud walls with 16-in on-center spacing; each batt is 15 in wide and 93 in long.

Q: Is this batt faced or unfacedand do I need a vapor retarder?
A: This product is unfaced and has no vapor retardant; follow local building code requirements for vapor control in your climate zone and application.

Q: How many batts are in a package and what area does it cover?
A: The pack includes 11 batts and covers 106.56 sq ft total.

Q: Where can it be used?
A: Its listed for use in walls and basements (not for attics, ceilings, floors, or crawlspaces per the provided specs).

Q: Does it help with sound?
A: Yesthis item is listed as having a sound barrier and is described as providing noise control in interior walls.

Quiet, Comfortable WallsEffortlessly Refined

Think of this unfaced fiberglass batt as the invisible foundation of a beautifully composed roomsoftening sound, steadying temperature, and making spaces feel instantly more serene. Its clean, friction-fit profile slips into standard stud bays, supporting a crisp wall finish without added bulk. Use it to elevate bedrooms, offices, or media rooms where hush and comfort matter most. True luxury isnt always seenits felt, in the calm your home holds.

Upgrade your wall comfort and quiet with JM R-13 unfaced fiberglass battssized to fit standard 2×4 cavities for a straightforward install.