R-21 Kraft-Faced Fiberglass Wall Batt Insulation, 68.942-sq ft
Kraft-faced fiberglass batts designed for 2x6 wood-framed walls deliver R-21 thermal performance and sound control. Pre-cut to 15.25 in x 93 in for 16 in on-center studs, these formaldehyde-free batts include a vapor retarder for moisture management and easy stapling installation.
Key Features:
Energy Efficiency R-21: Helps reduce heat loss and improve comfort in 2x6 wood-framed walls.
Built-In Vapor Retarder: Kraft facing controls moisture; staple flanges for secure fit.
Pre-Cut Convenience: Sized for 8-ft walls and 16-in on-center stud spacing for faster installs.
Healthy Indoor Air: Formaldehyde-free, GREENGUARD Gold and SCS certified for indoor air quality.
Durable Performance: Will not rot or mildew; noncorrosive to piping, wiring, and metal studs.
Specifications Table:
Specification
Details
Coverage Area (Sq. Feet)
68.942
Length (Inches)
93
Width (Inches)
15.25
Thickness (Inches)
5.5
Faced/Unfaced
Kraft faced
Framing Type
Wood studs
Insulation Type
Fiberglass
Maximum R-Value
21
R-Value per Inch
3.8181
Fits 2 x 6 Walls
Yes
Fits 2 x 4 Walls
No
For Use in Walls
Yes
For Use in Basements
Yes
For Use in Crawlspaces
Yes
For Use in Attics
No
For Use in Ceilings
No
For Use in Doors
No
For Use in Duct
No
For Use in Electrical
No
For Use in Floors
No
For Use in Garage Doors
No
For Use in Masonry
No
For Use in Plumbing
No
For Use in Vents
No
For Use in Windows
No
Formaldehyde Free
Yes
Sound Barrier
Yes
Stud Spacing (Inches)
16
Vapor Retardant
Yes
ENERGY STAR Certified
Yes
GREENGUARD Gold Certified
Yes
Warranty
1-year limited
Bag Dimensions (L x W x D)
20 x 20 x 50 in
Package Type
Multi-pack
Package Weight (lbs.)
29.47
Category
Batt Insulation
UNSPSC
11162400
Package Count
7
Multi-Pack Quantity
5
Total Package Quantity
35
Frequently Asked Questions (FAQ):
Q: How much area does one package cover? A: Each package covers approximately 68.942 square feet.
Q: What wall framing is this sized for? A: Pre-cut for 2x6 wood-stud walls with 16-in on-center spacing and 8-ft wall height.
Q: Is the insulation faced? A: Yes, it is Kraft-faced, providing an integrated vapor retarder that can be stapled to framing.
Q: Is it safe for indoor air quality? A: Yes, it is formaldehyde-free and GREENGUARD Gold and SCS certified.
Q: Can it be used in basements or crawlspaces? A: Yes, it is suitable for basements and crawlspaces; not intended for attics or ceilings for this specific product.
Cozy, Quiet Walls with a Clean, Crafted Finish
These R-21 Kraft-faced batts wrap your rooms in a tailored layer of comfort, muting noise while maintaining a crisp, dry envelope. The warm, papered face adds a neat, carpenterly look during the build and staples in for a bespoke fit. Pair with matte black hardware and natural woods for a modern craft aesthetic that feels grounded and serene. It’s a refined essential that elevates everyday living through comfort and calm.
Upgrade your 2x6 walls to R-21 comfort and install-ready convenience—add Johns Manville Kraft-faced batts to your project today.
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