Johns Manville R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft Coverage, 15-in W x 32-ft L, Multi-Pack
SKU: 69713764322

Johns Manville R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft Coverage, 15-in W x 32-ft L, Multi-Pack

Sale price$27.37 Regular price$30.41
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Description

Johns Manville R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft Coverage, 15-in W x 32-ft L, Multi-PackR 13 Kraft Faced Fiberglass Roll Insulation, 40 sq ft Johns Manville R 13 kraft faced fiberglass roll insulation is designed for 2x4 wood framed walls, delivering thermal performance with built in vapor retarder. Each 15 in by 32 ft roll covers 40 sq ft and helps improve energy efficiency and sound control. Key Features: Optimized for 2x4 Walls: 15 in width fits 16 in on center studs for fast installation Moisture Control: Kraft faced vapor retarder

R-13 Kraft-Faced Fiberglass Roll Insulation, 40-sq ft

Johns Manville R-13 kraft-faced fiberglass roll insulation is designed for 2x4 wood-framed walls, delivering thermal performance with built-in vapor retarder. Each 15-in by 32-ft roll covers 40 sq ft and helps improve energy efficiency and sound control.


Key Features:

  • Optimized for 2x4 Walls: 15-in width fits 16-in on-center studs for fast installation
  • Moisture Control: Kraft-faced vapor retarder helps manage indoor humidity
  • Energy & Sound Performance: R-13 fiberglass reduces heat loss and dampens noise
  • Easy to Install: Press in place; staple tabs as needed for secure fit
  • Healthy Home Certifications: Formaldehyde-free, GREENGUARD Gold and SCS certified

Specifications Table:

Specification Details
Coverage Area 40 sq ft
Length 32 ft
Width 15 in
Thickness 3.5 in
Faced/Unfaced Kraft faced
Fits 2 x 4 Walls Yes
Fits 2 x 6 Walls No
For Use in Walls Yes
For Use in Attics No
For Use in Ceilings No
For Use in Floors No
For Use in Crawlspaces No
For Use in Basements No
For Use in Doors No
For Use in Windows No
For Use in Masonry No
For Use in Duct No
For Use in Electrical No
For Use in Plumbing No
For Use in Vents No
Formaldehyde Free Yes
Framing Type Wood studs
Insulation Type Fiberglass
Maximum R-Value R-13
R-Value per Inch 3.71
Reflective No
Sound Barrier Yes
Stud Spacing 16 in on center
Vapor Retardant Yes
ENERGY STAR Certified Yes (program partner)
GREENGUARD Gold Certified Yes
Warranty 1-year limited
Bag Dimensions (L x W x D) 15.5 x 19 x 27 in
Package Type Multi-pack
Package Count 27
Total Package Quantity 27
UNSPSC 30141500

Frequently Asked Questions (FAQ):

Q: What areas is this insulation intended for?
A: It is designed for use in 2x4 wood-framed walls with 16-in on-center stud spacing; not for attics or ceilings.


Q: How much area does one roll cover?
A: Each roll covers 40 square feet (15-in W x 32-ft L).


Q: Is a vapor barrier included?
A: Yes, the kraft facing acts as a built-in vapor retarder for moisture control.


Q: Is it safe for indoor air quality?
A: Yes, it is formaldehyde-free and GREENGUARD Gold and SCS certified.


Q: What is the R-value?
A: R-13, with an approximate R-value per inch of 3.71.


Quiet Comfort, Clean Lines

This kraft-faced roll tucks seamlessly into 2x4 framing, wrapping walls in a whisper of warmth and hush. I love the tailored paper face—it creates a neat, uniform backdrop during build-out. Pair it with crisp drywall and matte black hardware for a refined, sound-softened envelope. It’s an effortless upgrade that sets the tone for elevated, livable luxury.


Upgrade your 2x4 walls with R-13 comfort and moisture control—add this Johns Manville roll insulation to your project 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: 69713764322

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patricia normand
Louisville, US
★★★★★ 5
untuck it shirt!
Color: Beige, Size: X-Large
lovely shirt! fits well
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Reviewed in the United States on May 31, 2026
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Jeff Tyler
San Leandro, US
★★★★★ 5
LOVE these shirts, came back and bought more!
These shirts look SO good. I am a senior manager in a large corporation so have to dress nice every day. I loved the first one of these shirts so much I came back and have now bought 15 of them in different colors. Basically, these are now all I wear. Buy yourself 15 bamboo undershirts with the V neck (you don't want the layered look with dress shirts, you want the V neck so you can't see the undershirt), half in white and half in black to wear under these and you are set. GUYS.....WHEN YOU FIRST BUY THESE YOU MUST IRON THEM. I see the pics of people wearing them here, and you can still see the fold lines from being packaged and that looks terrible. Washing alone won't get rid of the fold lines. Get your iron and set it for POLYESTER which is a lower heat setting. If you set it hot, it will melt the shirt. But set it for polyester and the lines iron out VERY easily and fast. You only have to do this when you first buy them. I've never had to iron any of them again after the first time. They are very wrinkle resistant! I HATE my cotton dress shirts now. These Coofandy shirts STRETCH like crazy! You can bend and reach for things no problem. I'm able to wear all of these with Chinos, dress slacks AND jeans so they are incredibly versitile! My wife and my girlfriend both (joking!) love how soft the shirt feels on me. I have to wear these shirts every day and own enough so I can do laundry once every other week and so far all the shirts have been very durable with no tears, rips, any problems at all. They all still look new.
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Reviewed in the United States on March 27, 2026
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Leslie A. Rowe
Houston, US
★★★★★ 4
Must iron first before wearing. Then wrinkle free.
The fit is perfect. The material is quite nice. The only problem would be they are hard to de-wrinkle from original packaging. I’ve washed my shirt several times and it’s still showing the creases. The only way to get rid of them is to launder them or iron them. I think once this occurs, they remain wrinkle free for a while. This is the third of the exact same shirt I got in different colors.
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Reviewed in the United States on January 2, 2026
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Sanjulee
New York, US
★★★★★ 5
Nice quality shirt
Color: Purple, Size: XX-Large
Nice material and fit is accurate. However shirts are rolled up in a tube, so if you need to wear the shirt the day you receive it be prepared to iron it!
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Reviewed in the United States on May 7, 2026
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Ronaldo Lopez
Whiting, US
★★★★★ 3
Calidad de las camisas
Color: A White, Size: Medium
I had already bought one shirt, so this time I bought two more. The light blue one is the same quality as the one I bought the first time. But the white one wasn't the same quality. It was also a different shade of white. They should try to maintain consistent quality across the board.
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Reviewed in the United States on March 25, 2026

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