R-21 Unfaced Fiberglass Wall Batt Insulation, 23 x 93 in

Johns Manville R-21 unfaced fiberglass batts deliver thermal performance and sound control for 2x6 wood-stud walls. Precut to 23 in x 93 in, these formaldehyde-free batts cover 103.97 sq ft per package and install easily by pressing in place between studs.

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Key Features:

• High R-Value Performance: R-21 thermal resistance helps improve energy efficiency in 2x6 walls
• Unfaced Design: No vapor barrier—ideal for adding to existing insulation or where separate vapor control is used
• Easy, Precut Fit: 23-in x 93-in batts sized for 24-in OC studs in standard 8-ft walls
• Healthier Indoor Air: Formaldehyde-free fiberglass; GREENGUARD Gold and SCS certified
• Durable and Noncorrosive: Will not rot, mildew, or corrode pipes, wiring, or metal studs

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Specifications Table:

Specification	Details
R-Value	21
Coverage Area	103.97 sq ft
Batt Dimensions	23 in W x 93 in L x 5.5 in T
Thickness	5.5 in
Stud Spacing	24 in on center
Framing Type	Wood studs
Insulation Type	Fiberglass
Faced/Unfaced	Unfaced
Formaldehyde Free	Yes
For Use in Walls	Yes
For Use in Basements	Yes
For Use in Attics	No
For Use in Ceilings	No
For Use in Floors	No
Vapor Retardant	No
Sound Barrier	Yes
Package Type	Multi-pack
Package Count	7 pieces
Total Package Quantity	28
Multi-Pack Quantity	4
Bag Dimensions (L x W x D)	49 in x 23.5 in x 20 in
ENERGY STAR Certified	Yes (program partner)
GREENGUARD Gold Certified	Yes
R-Value per Inch	3.8182
Warranty	1-year limited
UNSPSC	11162400

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Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: Each package covers approximately 103.97 square feet.

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Q: What wall framing is this sized for?
A: Precut for 2x6 wood-stud walls with 24-in on-center spacing and 8-ft wall heights.

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Q: Does this product have a vapor barrier?
A: No, it is unfaced and does not include a vapor retarder.

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Q: Is the fiberglass formaldehyde-free?
A: Yes, it is formaldehyde-free and GREENGUARD Gold certified.

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Q: Can it help with sound control?
A: Yes, the batts provide acoustical benefits to reduce sound transmission.

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Quiet Comfort, Tailored for Modern Walls

These R-21 unfaced batts bring a serene hush to your home while elevating thermal comfort. I love the clean, uniform profile—precut to nest seamlessly into 2x6 framing for a polished build. Pair them with warm wood finishes and matte black hardware to craft rooms that feel cocooned and refined. It’s a discreet luxury that underpins elevated living every day.

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Upgrade your 2x6 walls with R-21 performance today and start saving on energy bills with quieter, more comfortable rooms.