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

Sale price$40.55 Regular price$45.05
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 5 - Jul 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 1691 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
N
Verified Purchase
Nick
West Palm Beach, US
★★★★★ 5
Great quality and fast shipping
Size: Medium, Color: (001) Black / Black / Castlerock
These socks are tight but after the first wash and dry , they fit perfect and NEVER slide off , ordered a second pack
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
B
Verified Purchase
Bargain Rig
Draper, US
★★★★★ 5
Comfortable, Durable, and Stylish
Perfect gift choice! Excellent quality socks with a variety of colors to match any wardrobe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
L
Verified Purchase
Lyssetic
Louisville, US
★★★★★ 5
Favorite Socks Ever
Size: Medium, Color: Black/Assorted, Size: Medium, Color: Black/Assorted
I absolutely love these socks, they compress in the middle which is my favorite thing about them! Keeps them from slipping off my feet and also adds support, love love love how they feel and how long they last! This is my second pack that I’ve purchased, I had the multi colored ones before and they’ve lasted me two years before finally starting to wear out and fade and get holes. Definitely going to be routinely buying these every year. Good to wear with my work out shoes...winter boots, Nike sandals, and my everyday adidas sneakers. These are so worth it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2019
C
Verified Purchase
Carol
Massapequa, US
★★★★★ 5
Great ankle socks that stay put at a great price!!
Size: 6-9, Color: Assorted
These are great! I have been looking for a low profile ankle sock that is thinner but doesn’t ride down. (Picky, right?) I try to walk 5-7 miles on my days off. So it’s very important for me to not have to stop every couple of hundred yards, bend down, fix socks, then continue on my way while grumbling about NOT GREAT socks. These are not those socks. They really do stay put!!! And enough cushion to be comfortable also. So definitely a repeat!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 2, 2018
N
Verified Purchase
Nicole
Houston, US
★★★★★ 5
Great quality, no holes or fading!
Size: Medium, Color: Black/Assorted
I purchased these socks a couple years ago and love them so much that I just recently purchased them again! They fit perfectly, don't make my feet sweaty, and hit the ankle at the right spot. The material is so good that over years they have not faded and even though I wear the same few pairs every day, they have no signs of thinning or holes! These are the ONLY socks that I buy. I have the black ones as well as the multi-colored ones. I will never buy another brand or style again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2020

recommand products