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home > Johns Manville R-38 Kraft-Faced Fiberglass Batt Insulation, 48-sq ft Coverage, 16 in x 48 in (K1292S) > Johns Manville R-38 Kraft-Faced Fiberglass Batt Insulation, 48-sq ft Coverage, 16 in x 48 in (K1292S)

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Johns Manville R-38 Kraft-Faced Fiberglass Batt Insulation, 48-sq ft Coverage, 16 in x 48 in (K1292S)R 38 Kraft Faced Fiberglass Batt Insulation, 48 sq ft Formaldehyde free, kraft faced fiberglass batts designed for attics, ceilings and floors. Delivers R 38 thermal performance with integrated vapor retarder to improve energy efficiency and sound control. Key Features: High R Value Performance: R 38 batts help reduce heat loss and enhance home energy efficiency Built In Vapor Retarder: Kraft facing provides moisture control for attic applications

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R-38 Kraft-Faced Fiberglass Batt Insulation, 48-sq ft

Name: Johns Manville R-38 Kraft-Faced Fiberglass Batt Insulation, 48-sq ft Coverage, 16 in x 48 in (K1292S)
Brand: terrelite.it
SKU: 72285869188
Price: 78.91 USD
Availability: InStock
Rating: 4.7056 (78 reviews)

Formaldehyde-free, kraft-faced fiberglass batts designed for attics, ceilings and floors. Delivers R-38 thermal performance with integrated vapor retarder to improve energy efficiency and sound control.

Key Features:

High R-Value Performance: R-38 batts help reduce heat loss and enhance home energy efficiency
Built-In Vapor Retarder: Kraft facing provides moisture control for attic applications
Formaldehyde-Free Fiberglass: Improves indoor air quality; GREENGUARD Gold certified
Easy Installation: Precut 16 in x 48 in batts fit 16 in stud/joist spacing; staple tabs for securement
Durable and Noncorrosive: Will not rot or mildew; safe for use around pipes and wiring

Specifications Table:

Specification	Details
R-Value	38
Coverage Area	48 sq ft per package
Piece Count	9 pieces
Dimensions (per batt)	16 in W x 48 in L x 12 in Thick
Stud/Joist Spacing	16 in on center
Faced/Unfaced	Kraft faced (vapor retarder)
Insulation Type	Fiberglass
Formaldehyde Free	Yes
Sound Barrier	Yes
For Use in Attics	Yes
For Use in Ceilings	Yes
For Use in Floors	Yes
For Use in Walls	No
For Use in Basements/Crawlspaces	No
Width	16 in
Length	48 in
Thickness	12 in
R-Value per Inch	3.1666
Package Weight	28 lb
Bag Dimensions (L x W x D)	49 in x 16.5 in x 20 in
Vapor Retardant	Yes
ENERGY STAR Certified	Yes (program partner)
GREENGUARD Gold Certified	Yes
Warranty	1-year limited
UNSPSC	11162400

Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: Each package covers 48 sq ft with nine precut batts sized 16 in x 48 in.

Q: Where can this insulation be used?
A: It is intended for attics, ceilings, and floors with 16-in on-center wood stud/joist spacing; not for walls or basements.

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

Q: Does the kraft facing act as a vapor retarder?
A: Yes, the kraft facing provides a built-in vapor retarder to help control moisture.

Q: What tools are recommended for installation?
A: Common tools include gloves and eyewear, long sleeves, a utility knife, caulk or spray foam, and an attic ruler.

Quiet, Cozy Attics with Effortless Warmth

This kraft-faced batt tucks neatly between joists, creating a seamless thermal blanket that quiets the home and elevates comfort. I love the crisp, pre-cut format—16 by 48 inches—because it installs beautifully and looks tidy even in hidden spaces. Pair it with clean attic decking and soft task lighting to transform storage zones into serene, efficient envelopes. It’s a refined foundation for luxurious, energy-smart living.

Upgrade your attic’s efficiency and comfort—choose these R-38 kraft-faced batts and start saving energy today.