SKU: 90437875771

Johns Manville R-19 Kraft-Faced Fiberglass Batt Wall Insulation, 133.68-sq ft Coverage, 23-in x 93-in (K1251S)

Sale price$100.42 Regular price$111.58
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Description

Johns Manville R-19 Kraft-Faced Fiberglass Batt Wall Insulation, 133.68-sq ft Coverage, 23-in x 93-in (K1251S)R 19 Kraft Faced Fiberglass Batt Wall Insulation, 23 in x 93 in Kraft faced fiberglass batts designed for 2x6 wood stud walls deliver R 19 thermal performance with integrated vapor retarder. Pre cut 23 in x 93 in pieces cover 133. 68 sq ft per package to improve energy efficiency and sound control in basements, crawlspaces, and walls. Key Features: Ready to Install Batts: Pre cut for 8 ft walls on 24 in O. C. studs; simply press in place and staple

R-19 Kraft-Faced Fiberglass Batt Wall Insulation, 23-in x 93-in

Kraft-faced fiberglass batts designed for 2x6 wood-stud walls deliver R-19 thermal performance with integrated vapor retarder. Pre-cut 23-in x 93-in pieces cover 133.68 sq ft per package to improve energy efficiency and sound control in basements, crawlspaces, and walls.


Key Features:

  • Ready-to-Install Batts: Pre-cut for 8-ft walls on 24-in O.C. studs; simply press in place and staple flanges as needed
  • Moisture Control: Kraft facing acts as a built-in vapor retarder to help manage humidity in exterior walls
  • Energy & Sound Performance: R-19 insulation improves efficiency and provides acoustic dampening
  • Durable & Safe: Formaldehyde-free fiberglass will not rot, mildew, or corrode pipes and wiring
  • Indoor Air Quality Certifications: GREENGUARD Gold and SCS Recycled Content certified; ENERGY STAR partner

Specifications Table:

Specification Details
R-Value 19
Insulation Type Fiberglass
Facing Kraft faced (vapor retarder)
Piece Dimensions 23 in W x 93 in L x 6.5 in Thick
Coverage Area 133.68 sq ft per package
Stud Spacing 24 in on-center
Fits Wall Depth 2x6 walls
Framing Type Wood studs
Formaldehyde Free Yes
Sound Barrier Yes
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
Vapor Retardant Yes
ENERGY STAR Certified Yes (program partner)
GREENGUARD Gold Certified Yes
Bag Dimensions (L x W x D) 23.5 x 20 x 49 in
Package Weight 36.8 lb
Package Type Multi-pack
Package Count 9 pieces
R-Value per Inch 2.9231
Warranty 1-year limited
UNSPSC 11162400

Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: Each package covers 133.68 sq ft with nine 23-in x 93-in batts.


Q: What wall construction is this for?
A: It’s sized for 2x6 wood-stud walls with 24-in on-center spacing; not for 2x4 walls.


Q: Is a separate vapor barrier required?
A: No, the Kraft facing functions as a vapor retarder in most wall assemblies; follow local codes.


Q: Can this be used in ceilings or attics?
A: It’s intended for walls and appropriate for basements and crawlspaces; not for attics or ceilings per specs.


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


Quiet Comfort, Elegantly Wrapped

This R-19 Kraft-faced batt cocoons your rooms in a serene hush while keeping temperatures luxuriously consistent. I love the warm paper facing—clean, orderly, and purposeful—creating a polished canvas before drywall. Pair it with deep, matte wall colors and layered textures to heighten the sense of calm. It’s a discreet essential that elevates living to a refined, comfortable standard.


Upgrade your wall assembly with R-19 performance—add Johns Manville Kraft-faced batts to your cart and start saving energy and reducing noise today.

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: 90437875771

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4.8 ★★★★★
Based on 23 reviews
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Verified Purchase
Jrc
Lake Worth, US
★★★★★ 1
Protectores de manubrio para bicicleta
Se les mete el agua no son buenos
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
D
Dominic
Pawtucket, US
★★★★★ 3
They're okay, but they're quite bulky.
I liked the design and overall application of these, but they don't fit my needs. They definitely work well at protecting my hands from freezing weather, but they are way too bulky for regular motorcycle use. In my opinion, I feel that these would be much more suited for a snowmobile or ATV. If you treat them as what they’re mostly designed for — ATV/snow-related riding or cold-weather utilitarian use — these gloves are a solid buy. They deliver warmth, weather protection, and decent control through the TPU windows. But if you put them on a fast street motorcycle or expect “motorcycle-glove” levels of control and feel — they’ll likely disappoint or even pose safety trade-offs. In that context, lighter and more control-oriented gloves would probably serve you better. The reason I'm docking stars is because they're marketed toward motorcycle users, and they;re very impractical. The durability seems pretty good, as I've taken them out and even had a couple of rocks/road debris hit the TPU windows with no scratches or punctures. They're not super comfortable to use at highway speeds, especially since they fit so loose, and they tend to press my front brake/clutch which is very dangerous. I personally cannot recommend this product for motorcycle use, unless you already have handguards, which will probably negate the need for these at all. Invest in some good heated gloves and/or heated grips, and I think you'll be much safer and better off in the end. For the price, I think this is a good value, but they're just not for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
B
Verified Purchase
Bob Cremer
West Palm Beach, US
★★★★★ 5
All ATV owners need these.
These gloves are fabulous. Anybody having fun on a ATV need these. With my hand warmer and these gloves, I don’t wear anything else on my hands. They are great.
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Reviewed in the United States on October 30, 2025
C
Verified Purchase
Chuck
Pawtucket, US
★★★★★ 2
handlebar mittens
Too big. If using during snow plowing they are a burden due to need to take hands off controls, and shift from forward to reverse. Might be okay if just riding around on trails, etc.
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Reviewed in the United States on December 8, 2025
S
Verified Purchase
Some guy
Lowell, US
★★★★★ 4
Good quality, not great on clutch
The quality of these is very good. They break the wind very well. Too well, actually. On my bike when going above 60 MPH they press hard enough on the clutch to be a problem. I'm sure I'll still use them but they won't be of any value on the interstate. It's possible to hold the clutch while using them but, for me at least, I don't have the strength to do it for my 45 minute commute. Unfortunately, the openings seem to fold up making it difficult to get gloved hands into them quickly, which is my reason for subtracting a star.
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Reviewed in the United States on November 12, 2025

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