SKU: 93384954696

Johns Manville R-19 Kraft-Faced Fiberglass Roll Insulation, 48.96-sq ft (15-in W x 39.167-ft L) – Individual Pack, B240

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Description

Johns Manville R-19 Kraft-Faced Fiberglass Roll Insulation, 48.96-sq ft (15-in W x 39.167-ft L) – Individual Pack, B240R 19 Kraft Faced Fiberglass Roll Insulation, 15 in x 39. 167 ft Kraft faced, formaldehyde free fiberglass roll insulation designed for 2x6 wood stud walls and floors. Delivers R 19 thermal performance with built in vapor retarder to boost energy efficiency and sound control in long, unobstructed runs. Key Features: Built In Vapor Retarder: Kraft facing controls moisture in concealed wall and floor applications Energy & Sound Control: R 19 fiberglass

R-19 Kraft-Faced Fiberglass Roll Insulation, 15-in x 39.167-ft

Kraft-faced, formaldehyde-free fiberglass roll insulation designed for 2x6 wood-stud walls and floors. Delivers R-19 thermal performance with built-in vapor retarder to boost energy efficiency and sound control in long, unobstructed runs.


Key Features:

  • Built-In Vapor Retarder: Kraft facing controls moisture in concealed wall and floor applications
  • Energy & Sound Control: R-19 fiberglass improves thermal efficiency and reduces noise transfer
  • 2x6 Wood-Stud Fit: Sized for 16-in on-center framing; 15-in width, 39.167-ft length
  • Easy Installation: Press between studs and staple tabs for added securement
  • Healthy Indoor Air: Formaldehyde-free, GREENGUARD Gold and SCS certified

Specifications Table:

Specification Details
Coverage Area (Sq. Feet) 48.96
Length (Feet) 39.167
Thickness (Inches) 6.5
Width (Inches) 15
Faced/Unfaced Kraft faced
Fits 2 x 4 Walls No
Fits 2 x 6 Walls Yes
For Use in Floors Yes
For Use in Walls Yes
For Use in Attics No
For Use in Ceilings No
For Use in Basements No
For Use in Crawlspaces No
For Use in Doors No
For Use in Duct No
For Use in Electrical No
For Use in Garage Doors No
For Use in Masonry No
For Use in Plumbing No
For Use in Vents No
Formaldehyde Free Yes
Framing Type Wood studs
Insulation Type Fiberglass
Maximum R-Value 19
R-Value per Inch 2.9231
Stud Spacing (Inches) 16
Reflective No
Sound Barrier Yes
Vapor Retardant Yes
ENERGY STAR Certified Yes
GREENGUARD Gold Certified Yes
SCS Recycled Content Certification Yes
Warranty 1-year limited
Package Type Individual pack
Package Count 1
Total Package Quantity 1
UNSPSC 30141500
Bag Dimensions (L x W x D) 15.5 x 19 x 26
Package Weight (lbs.) 12.01

Frequently Asked Questions (FAQ):

Q: Can this be used in 2x4 walls?
A: No. It is designed for 2x6 wood-stud walls and floors.


Q: Is the facing a vapor barrier?
A: Yes. The kraft facing functions as a vapor retarder for moisture control.


Q: What is the coverage per roll?
A: 48.96 square feet per individual roll.


Q: Is this insulation formaldehyde-free?
A: Yes, it is formaldehyde-free fiberglass.


Q: Does it help with sound control?
A: Yes. It provides sound barrier benefits in addition to thermal performance.


Warmth, Quiet, and Clean Lines for Your Walls

This kraft-faced roll tucks seamlessly into 2x6 studs, delivering a hushed, cozy envelope that elevates everyday living. The subtle paper facing creates a tidy, uniform backdrop during build-out while the R-19 core boosts comfort and efficiency. Use it to streamline long wall runs for an uncluttered installation that feels bespoke. It’s an essential layer for refined, luxurious spaces that live as beautifully as they look.


Upgrade your walls and floors with R-19 comfort—add this JM kraft-faced roll to your cart and start saving energy 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: 93384954696

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Reviewed in the United States on April 12, 2026
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Reviewed in the United States on April 11, 2026
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rkruz
Bozeman, US
★★★★★ 4
Easy Install Onto Jeep JKU, No Switch Backlight or Mounting Holes, Great Customer Service
Color: 5in Cube LED Pod, Color: 5in Cube LED Pod
I installed the Auxbeam 5" 168W LED Cube Pods onto my Jeep JKU Anniversary Steel Bumper. It was an easy install with some YouTube videos to help me snake the cables into the cab. The unused holes in the steel bumper were the perfect size to fit the mounting bolts on the pod lights, and there was plenty of room to reach under the top edge of the bumper to install the nuts with some Loctite. To snake the provided cable through the firewall, I had to remove the installed socket. This was easy to do by simply recessing the retainer clip on each pin, taking a picture of the wired connector before releasing the wires so I knew how to reassemble, snaking the connectorless cable through the firewall into the cab where the pins were then reinserted and locked into the connector. I dressed the cable by zip tie to the existing wire harness at the top of the engine bay. In the cab, I pulled the side panel from the dash (driver's side) and made a small hole for the cable in the panel. After cleaning the dash with alcohol, the adhesive-backed switch seems to hold nicely in place. The lights were very bright and did a great job of illuminating the front and sides of the trail ahead of me. No backlight on the switch, which is a necessity, and I dont understand why that feature is not present. Also, there is no through hole to mount as the adhesive back won't stay attached, so the lack of a mounting hole is a big negative as well. 5 Month UPDATE: One of the lights got water inside. I noticed two screws that hold the glass cover were loose on the bottom of both sides. The other light also had the same loose screws but no water under the glass. I contacted Auxbeam, and they replaced the entire set in 2 days. Very awesome customer service.
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Reviewed in the United States on December 25, 2023
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Kevin Sanguansukdikosol
West Palm Beach, US
★★★★★ 5
Brightness and quality
Color: 4*2.5in Cube LED Pod
Got this for my 2024 Crosstrek. Got this one specifically due to its functionality that I wanted, quality for the price and it looks great especially DRL. I leave the Amber cover on most of the time. If you want the DRL to be on while the car is on, you can do that but it has to be rewired which I did. Love the brightness. I’ve been having this on my Crosstrek for a few months now and have no issues.
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Reviewed in the United States on March 3, 2026
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Thomas Chapman
Omaha, US
★★★★★ 5
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Reviewed in the United States on January 17, 2026

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