R-21 Kraft-Faced Fiberglass Wall Batt Insulation

Formaldehyde-free, kraft-faced fiberglass batts designed for 2x6 wood-stud walls deliver R-21 thermal performance with built-in vapor barrier. Precut to 23 in x 93 in for fast installation and 103.97-sq ft total coverage per package.

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Key Features:

• Built-In Vapor Barrier: Kraft facing helps control moisture in exterior walls
• R-21 Thermal Performance: Improves energy efficiency and comfort
• Precut for 24-in O.C. Studs: 23 in x 93 in batts fit standard 8-ft walls
• Sound Control: Helps reduce noise transmission through walls
• Durable & Safe: Formaldehyde-free fiberglass that won’t rot or corrode

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Specifications Table:

Specification	Details
Coverage Area (Sq. Feet)	103.97
Length (Inches)	93
Width (Inches)	23
Thickness (Inches)	5.5
Faced/Unfaced	Kraft faced
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
Formaldehyde Free	Yes
Framing Type	Wood studs
Insulation Type	Fiberglass
Maximum R-Value	21
Stud Spacing (Inches)	24
Vapor Retardant	Yes
Sound Barrier	Yes
ENERGY STAR Certified	Yes
GREENGUARD Gold Certified	Yes
R-Value per Inch	3.8181
Package Type	Multi-pack
Package Count	7
Total Package Quantity	28
Multi-Pack Quantity	4
Bag Dimensions (L x W x D)	23.5 x 20 x 49
Warranty	1-year limited
Package Weight (lbs.)	47.3
CA Residents: Prop 65 Warning(s)	No
UNSPSC	11162400

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Frequently Asked Questions (FAQ):

Q: Can these batts be used in 2x4 walls?
A: No. They are 5.5 in thick and intended for 2x6 wood-stud walls.

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Q: Do I need a separate vapor barrier?
A: No. The kraft facing acts as a vapor retarder; staple the tabs to framing if additional securement is needed.

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Q: What is the total coverage of one package?
A: 103.97 square feet.

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Q: Is this insulation safe for indoor air quality?
A: Yes. It is formaldehyde-free and GREENGUARD Gold Certified.

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Q: How many batts come in the package?
A: 7 precut pieces.

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Quiet comfort with crisp, tailored warmth

These kraft-faced batts bring a refined sense of calm to the envelope of your home, elevating everyday living with efficient, reliable warmth. The neatly precut, paper-faced design slips into 2x6 walls like a bespoke layer, muting noise while managing moisture. Pair with clean-lined drywall and natural wood finishes to let the serene, insulated shell showcase your style. It’s a foundational luxury—comfort and performance dressed in precision.

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Upgrade your 2x6 walls with R-21 performance—add Johns Manville kraft-faced batts to your cart and insulate with confidence today.