R-13 Kraft-Faced Fiberglass Wall Batt Insulation

Johns Manville R-13 kraft-faced fiberglass batts insulate 2x4 wood-stud walls with built-in vapor retarder for moisture control. Precut 23 in x 93 in batts cover 163.39 sq ft per package and help improve energy efficiency while reducing sound transmission.

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Key Features:

• Designed for 2x4 Walls: Precut 23 in x 93 in batts fit 24-in on-center wood studs for fast installation
• Moisture Control: Kraft facing provides an integral vapor retarder to help manage indoor humidity
• Thermal + Acoustic Performance: R-13 rating improves energy efficiency and offers effective sound control
• Durable Fiberglass: Will not rot, mildew, or corrode pipes, wiring, or metal studs; formaldehyde-free
• Healthy Home Certifications: GREENGUARD Gold and SCS Recycled Content certified; ENERGY STAR partner

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Specifications Table:

Specification	Details
R-Value	13
Insulation Type	Fiberglass
Facing	Kraft faced (vapor retarder)
Dimensions (per batt)	23 in W x 93 in L x 3.5 in T
Coverage Area	163.39 sq ft per package
Pieces per Package	11
Stud Spacing	24 in on-center
Wall Compatibility	Fits 2x4 walls; wood studs
For Use In Walls	Yes
For Use In Basements	Yes
For Use In Attics/Ceilings/Floors	No
Sound Barrier	Yes
Formaldehyde Free	Yes
Vapor Retardant	Yes
ENERGY STAR Certified	Yes (program partner)
GREENGUARD Gold Certified	Yes
Warranty	1-year limited
Bag Dimensions (L x W x D)	23.5 x 20 x 49 in
Package Weight	45.2 lb
R-Value per Inch	3.7142
Package Type	Multi-pack
Package Count	11 batts
Multi-Pack Quantity	4 (total package quantity 44)

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Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: Each package covers 163.39 square feet with 11 precut batts.

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Q: What wall construction is this intended for?
A: It’s designed for 2x4 wood-stud walls with 24-in on-center spacing.

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Q: Is a separate vapor barrier needed?
A: No—these batts are kraft-faced and include an integral vapor retarder.

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Q: Can it be used in basements or ceilings?
A: It’s suitable for basements and walls; it is not intended for attics or ceilings for this specific product size.

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

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Warmth, Quiet, and Craftsmanship in Every Cavity

This kraft-faced batt slips into a stud bay like a tailored suit, delivering clean lines behind the drywall while elevating comfort. I love the subtle, textural kraft paper—an honest material that doubles as a smart vapor retarder. Use it to wrap a home office or bedroom where serenity matters; the R-13 density hushes the outside world. It’s a discreet luxury that makes everyday living feel polished and beautifully considered.

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Upgrade your walls with R-13 comfort and install Johns Manville’s kraft-faced batts today for quieter, more efficient rooms.