R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft

Johns Manville R-13 kraft-faced fiberglass roll insulation is designed for 2x4 wood-stud walls, delivering thermal performance and sound control with an integrated vapor retarder. Each 15-in x 32-ft roll covers 40 sq ft and is formaldehyde-free for improved indoor air quality.

Key Features:

• Built-In Vapor Retarder: Kraft facing provides moisture control in exterior wall cavities.
• Energy & Sound Performance: R-13 thermal rating with sound-dampening properties for quieter rooms.
• Sized for 2x4 Walls: 15-in width fits 16-in on-center wood studs; 32-ft roll for long runs.
• Easy Installation: Press in place and staple flanges where needed; noncorrosive to pipes and wiring.
• Health & Sustainability: Formaldehyde-free fiberglass, GREENGUARD Gold and SCS certified.

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What wall framing is this roll designed for?
A: It’s sized for 2x4 wood-stud walls with 16-in on-center spacing and a 3.5-in thickness.

Q: How much area does one roll cover?
A: Each roll covers 40 square feet (15-in W x 32-ft L).

Q: Does it control moisture?
A: Yes, the kraft facing acts as a vapor retarder to help manage moisture in concealed applications.

Q: Is this insulation safe for indoor air quality?
A: Yes, it is formaldehyde-free and GREENGUARD Gold/SCS certified.

Q: Can I install it myself?
A: Yes. Press the roll between studs and staple the tabs if additional securement is needed.

Quiet Comfort, Seamlessly Wrapped

This kraft-faced insulation cocoons your walls in a soft hush, elevating comfort while keeping lines clean and concealed. I love the warm, natural kraft facing—it tucks neatly into 2x4 bays for a tailored fit. Pair it with crisp drywall and matte black hardware to craft a serene, gallery-like backdrop. It’s a discreet essential for refined, luxurious living that feels as good as it looks.

Upgrade your 2x4 walls with JM R-13 kraft-faced rolls today for quieter, more efficient comfort in every room.