R-21 Kraft-Faced Fiberglass Wall Batt Insulation

JM R-21 kraft-faced fiberglass batts are pre-cut to fit 2x6 wall cavities for efficient thermal performance and added sound control. The kraft facing provides a built-in vapor retarder to help manage moisture in wood-framed walls and basements.

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Key Features:

• Pre-Cut for 2x6 Walls: Designed for standard 8-ft walls with 16-in on-center stud spacing (15 in. x 93 in. batts).
• Built-In Vapor Retarder: Kraft facing helps control moisture when installed against framing in exterior wall applications.
• Comfort & Quiet: Improves energy efficiency while helping reduce sound transmission through walls.
• Formaldehyde-Free Fiberglass: Made with formaldehyde-free fiberglass insulation for indoor comfort.
• Durable, Stable Batts: Dimensionally stable fiberglass resists slumping, settling, or breakdown in normal applications.

Please check the Product Data Sheet Here

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Specifications Table:

Specification	Details
Insulation Type	Fiberglass batt
R-Value	R-21
Coverage Area	67.81 sq ft
Batt Width	15 in
Batt Length	93 in (7.75 ft)
Thickness	5.5 in
Pieces per Bag	7
Stud Spacing	16 in on-center
Fits Wall Size	2 x 6 wall
Faced/Unfaced	Kraft faced
Vapor Retardant	Yes
Sound Barrier/Sound Control	Yes
Formaldehyde Free	Yes
Framing Type	Wood studs
For Use in Walls	Yes
For Use in Basements	Yes
ENERGY STAR Certified	Yes
GREENGUARD Gold Certified	Yes
SCS Recycled Content Certification	Yes
Warranty	1-year limited
Package Type	Multi-pack
Total Package Quantity / Package Count	7
R-Value per Inch	3.8181
Bag Dimensions (L x W x D)	20 x 20 x 50

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Frequently Asked Questions (FAQ):

Q: What stud cavity does this insulation fit?
A: It’s sized for 2x6 wood-stud wall cavities with 16-in on-center spacing (15 in. wide batts).

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Q: Does the kraft facing act as a vapor barrier?
A: Yes. The kraft facing is a vapor retarder intended to help with moisture control when installed properly.

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Q: How much area does one bag cover?
A: One bag covers 67.81 sq. ft.

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Q: How many batts come in a bag?
A: The bag contains 7 pieces (batts).

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Q: Where can it be used?
A: It’s commonly used in walls and basements; it’s also listed for use in walls, floors, and crawl spaces depending on the retailer listing and application needs.

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Quiet Luxury Starts Behind the Walls

True comfort is architectural—felt in the hush of a room and the steady calm of temperature that never calls attention to itself. These R-21 kraft-faced fiberglass batts slip into 2x6 cavities with a tailored fit, while the kraft facing adds a thoughtful layer of moisture control. Use them to elevate bedrooms, home offices, or any space where serenity is the ultimate finish. It’s the invisible upgrade that makes a home feel undeniably luxe.

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Upgrade your 2x6 walls with JM R-21 kraft-faced batts for efficient comfort, moisture control, and quieter rooms.

Warranty

Installation