SKU: 33787616468

Johns Manville R-30 Attic Kraft-Faced Fiberglass Batt Insulation, 88-sq ft Coverage, 24-in x 48-in, K1243S

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Description

Johns Manville R-30 Attic Kraft-Faced Fiberglass Batt Insulation, 88-sq ft Coverage, 24-in x 48-in, K1243SR 30 Kraft Faced Fiberglass Batt Attic Insulation, 24x48 High efficiency R 30 batt insulation designed for wood framed attics, ceilings, and floors. Kraft facing provides a built in vapor retarder for moisture control, while the formaldehyde free fiberglass improves energy efficiency and sound performance. Precut batts offer straightforward installation and 88 sq ft total coverage. Key Features: Built in Moisture Control: Kraft facing acts as a vapor

R-30 Kraft-Faced Fiberglass Batt Attic Insulation, 24x48

High-efficiency R-30 batt insulation designed for wood-framed attics, ceilings, and floors. Kraft-facing provides a built-in vapor retarder for moisture control, while the formaldehyde-free fiberglass improves energy efficiency and sound performance. Precut batts offer straightforward installation and 88-sq ft total coverage.

Key Features:

  • Built-in Moisture Control: Kraft-facing acts as a vapor retarder to help manage attic humidity
  • Energy & Sound Performance: R-30 fiberglass batts reduce heat loss and dampen noise
  • Simple Installation: Precut 24-in x 48-in batts press in place between 24-in stud/joist spacing
  • Durable & Noncorrosive: Fiberglass will not rot, mildew, or corrode pipes, wiring, or metal studs
  • Health-Conscious Certifications: Formaldehyde-free; GREENGUARD Gold and SCS recycled content certified

Specifications Table:

Specification Details
Coverage Area 88 sq ft
Length 48 in
Width 24 in
Thickness 10.25 in
Faced/Unfaced Kraft faced
Insulation Type Fiberglass
Maximum R-Value R-30
Stud/Joist Spacing 24 in
Pieces per Package 11
Package Type Multi-pack
Package Weight 36.7 lbs
R-Value per Inch 2.9268
Sound Barrier Yes
Vapor Retardant Yes
Formaldehyde Free Yes
ENERGY STAR Certified Yes
GREENGUARD Gold Certified Yes
Warranty 1-year limited
Bag Dimensions (L x W x D) 24.5 x 20 x 50 in
For Use in Attics Yes
For Use in Ceilings Yes
For Use in Floors Yes
For Use in Walls No

Frequently Asked Questions (FAQ):

Q: How much area does one package cover?
A: This multi-pack covers 88 square feet total with 11 precut batts sized 24 in x 48 in.

Q: Where should I use this insulation?
A: It is intended for wood-framed attics, ceilings, and floors with 24-in stud/joist spacing.

Q: Do I need a separate vapor barrier?
A: No, the kraft-facing provides a built-in vapor retarder; staple the tabs if additional securement is required.

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

Q: What tools are recommended for installation?
A: Utility knife, gloves and eyewear, long sleeves, attic ruler, and caulk or spray foam for sealing gaps.

Quiet, Cozy Comfort for the Attic

This kraft-faced batt brings a tailored layer of warmth and hush to overhead spaces, refining comfort from the top down. The clean, precut form factor slips neatly between joists, making installation crisp and orderly. Pair it with light-toned decking and streamlined storage to keep the attic open and serene. It’s a smart, elegant upgrade that elevates everyday living with efficient, luxurious calm.

Upgrade your attic with R-30 performance—add Johns Manville kraft-faced batts to boost efficiency and comfort 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: 33787616468

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4.7 ★★★★★
Based on 15 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Battle Creek, US
★★★★★ 5
Great toy
Color: Black/Orange
This brand really makes durable toys. They outlast every other toy my dogs have. One dog loves to get the squeaker out of any toy, but he doesn’t rip this one apart. Obviously it won’t last forever, but no toy does! Some other brands of toys only make it a day or two, while these last months to years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
C
Verified Purchase
C Harper
Omaha, US
★★★★★ 5
Super durable!
Color: 2PK Green Leaping Phrog
Yellow lab approved bc they are fun to chew. Mom approved because they last forever!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
A
Verified Purchase
Arele
Lexington, US
★★★★★ 5
Great toy for two big German Shepherds
Color: Brown
We only buy Tuffy dog toys now because we have one German Shepherd, and we often watch our daughter's GSD too, and the two dogs tear anything else apart in minutes. Tuffy toys are BY FAR superior to any other dog toy we have tried. That being said, some Tuffy toys seem to last longer than others with the two dogs, and this one has been pretty good! We've had it for a few weeks now, and it's just now starting to show some white (stuffing) where their teeth have pierced the top of the toy. That's pretty good, considering they play tug of war with it and can tear into toys pretty hard. If it were just our one dog, I think it would last a lot longer because it's the tug of war between the two of them that does them in faster. Even so, when they do manage to tear the fabric in vulnerable places, I just pull the stuffing out from that area, and they continue to play with it, sometimes for months! This one is better than some other Tuffy toys too because it has lots of areas where there is already more fabric and reinforced seams than stuffing, like all the legs on the side, the tail, and even the pincers. So far, they haven't been able to tear into those at all. Just a bit on the top of the head, and so far, no stuffing coming out yet. This one is a big win for us! When they finally do do it in, I will turn around and buy another Scorch the Scorpion right away!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2014
D
Verified Purchase
Deholle
Phoenix, US
★★★★★ 4
Tuffy Desert Phrog vs Lola
Color: Green Leaping Phrog, Color: Green Leaping Phrog
Just a little background about my dog. Lola is a 5 year old corgi-terrier mix with jaws of steal. Lesser stuffed toys have met death in under 5 minutes. Tennis balls last less than a day. Rope toys that do not have frayed ends might possibly last a week (frayed ends never stand a chance). The only toys that she has not managed to destroy are her Kong, a Kong bone, and a racquet ball. I figured I would document the life span of Phrog (Tuffy Scale: 9) before making my final judgement on it’s durability. Day 1 - Phrog Arrives! Lola was very excited about the arrival of Phrog and immediately went into destruction mode. Phrog did sustain a little damage before we were able to bribe her to drop Phrog and get her understand that he was more fun to play fetch with than to mutilate. The white you see in the picture is not stuffing, but the second layer of defense for the toy. The fact that my living room is not full of stuffing and I didn’t have to pry a squeaker out of my dog’s mouth, I’d say Phrog wins the Day 1 challenge. Day 9 - Phrog has sustained a little more damage, but not anything life threatening. His side wound is a little bit larger and one of his eyes is half ripped off. For safety reasons, I am going to finish removing the damaged eye and some loose thread from various places. Other than that, Phrog is still holding up and holds top toy spot. I have also found him very useful for dealing with anxiety; the squeaker can often distract her from her stressors and Phrog takes the abuse of her frustrations. Day 16 - Phrog is starting to show signs of mortal wounds. Lola has made it through the thicker layer around his arm and I can see the stuffing. It is only a matter of time before gets all the way through. Day 60 - Phrog still lives!!! I have done some surgery on Phrog to reinforce the fabric around his arms, but Franken-Phrog is still the favorite of all of the toys. She will even get brave enough to rescue Phrog from the evil vacuum when he is kidnapped and tortured. I am thinking about purchasing Phrog II for the inevitable day when Phrog goes off to the pet toyland in the sky, but for now, there is only one Phrog for Lola.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 6, 2018
M
Verified Purchase
michael parsley
Houston, US
★★★★★ 5
Super tough
Color: Red Warthog
My dogs love these toys!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026

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