R-21 Kraft-Faced Fiberglass Wall Batt Insulation

Johns Manville R-21 kraft-faced fiberglass batts are designed for 2x6 wood-stud walls to help improve energy efficiency and reduce noise. The kraft facing provides a built-in vapor retarder for moisture control in concealed applications like exterior walls.

Key Features:

• Sized for 2x6 Walls: 15.25-in wide batts fit 16-in on-center wood-stud framing and 8-ft wall cavities.
• Built-In Vapor Retarder: Kraft facing helps control moisture in concealed wall applications.
• Energy & Sound Control: Helps improve thermal performance and provides sound control.
• Easy Installation: Press-fit between studs and staple facing tabs to framing when needed.
• Formaldehyde-Free & Durable: Formaldehyde-free fiberglass that won’t rot or mildew and is noncorrosive to pipes and wiring.

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What wall framing is this insulation designed for?
A: It’s designed for 2x6 wood-stud walls with 16-in on-center spacing.

Q: Does it include a vapor barrier?
A: Yes—it's kraft-faced and includes a built-in vapor retarder for moisture control.

Q: Where can I use these batts?
A: They are listed for use in walls, basements, and crawlspaces (not for attics or ceilings).

Q: Is it formaldehyde-free?
A: Yes, it is specified as formaldehyde-free.

Q: How much area does one package cover?
A: Coverage is 68.942 sq ft per package.

Quiet luxury starts behind the walls.

Think of this as the invisible couture of a well-finished home—R-21 fiberglass batts that refine comfort with a hush and a steady, enveloping warmth. The kraft facing adds a purposeful layer of protection, quietly managing moisture where craftsmanship matters most. Use it to elevate a 2x6 wall assembly in living spaces and bedrooms for a calmer, more insulated feel. It’s a foundational detail that makes everyday life feel undeniably more luxurious.

Upgrade your 2x6 walls with R-21 kraft-faced batts for dependable comfort, moisture control, and quieter rooms.