SKU: 60511243739

JM R-21 Kraft-Faced Fiberglass Batt Insulation, 15 in. x 93 in., 67.81 sq. ft. (7-Piece Bag)

Sale price$175.64 Regular price$195.15
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Description

JM R-21 Kraft-Faced Fiberglass Batt Insulation, 15 in. x 93 in., 67.81 sq. ft. (7-Piece Bag)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. 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

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.


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


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

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).


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.


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


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


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.


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.


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

Warranty

Installation

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 60511243739

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Amazon Customer
Battle Creek, US
★★★★★ 5
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Size: 13, Color: Black
Love these shoes
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Reviewed in the United States on January 13, 2026
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Eugene Kentrell
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★★★★★ 1
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Reviewed in the United States on March 6, 2026
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Mark Butler
San Leandro, US
★★★★★ 5
N/A
Size: 13, Color: Black
Comfortable to wear
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Reviewed in the United States on October 10, 2025
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J. L.
Bozeman, US
★★★★★ 5
Great value dress shoes with nice detailing
Size: 11, Color: Black, Size: 11, Color: Black
I bought these black dress shoes for an occasional formal wear, and overall I’m quite pleased with them for the price. Fit & Comfort: The size is accurate (true to size for me). They fit well right out of the box with no major break-in period needed. The pointed toe is a bit more tapered/narrow than I usually prefer, but it’s stylish and not uncomfortably tight. The main downside is the thin padding/insoles — they’re a little firm underfoot. However, this is an easy fix; I’ve already swapped them for better aftermarket insoles and the comfort improved significantly. Quality & Appearance: The quality is solid for the money. The faux leather has a nice shine, and the crocodile-embossed pattern on the toe cap and sides looks sharp and premium in person (see my photos). Stitching is clean, the sole has decent tread for a dress shoe, and they feel sturdy. No loose threads or cheap-feeling construction. They’ve held up well so far after several wears. Value: Excellent bang for the buck. They look much more expensive than they cost and are a solid choice if you’re looking for stylish dress shoes without spending a fortune. Would recommend, especially if you plan to add your own insoles. Perfect for office, weddings, or events where you want to look polished.
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Reviewed in the United States on May 17, 2026
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James Lee
Los Angeles, US
★★★★★ 2
Plastic
Size: 13, Color: Brown
Shoes appear cheap. Material looks and feels like plastic. I could get better quality from Walmart
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Reviewed in the United States on May 12, 2025

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