ToughRock Insulation & Drywall Starter Kit
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Items Included in this Collection




Item #13002 |
Model #K1241
Kraft-faced fiberglass batt insulation ideal for sound control in 2x4 wood-framed walls and basements, and provides a built-in vapor barrier for moisture control
Improves energy efficiency and provides sound control
Batts are pre-cut for use in standard 8-ft walls with 16-in on-center stud spacing
Simple to install, press in place between studs and staple tabs to framing if additional securement is required
Will not rot, mildew or deteriorate and is noncorrosive to pipes, wiring and metal studs
JM is a partner of the Seal and Insulate with ENERGY STAR program
SCS Recycled Content certification
GREENGUARD Gold Certified for office indoor air quality and SCS Certified for home indoor air quality
General | |||
|---|---|---|---|
Package Type | Individual pack | Package Count | 11 |
Total Package Quantity | 11 | Framing Type | Wood studs |
Insulation Type | Fiberglass | ||
Dimensions | |||
|---|---|---|---|
Bag Dimensions (L x W x D) | 15.5 x 20 x 49 | Thickness (Inches) | 3.5 |
Coverage Area (Sq. Feet) | 106.56 | Width (Inches) | 15 |
Length (Inches) | 93 | R-Value per Inch | 3.7143 |
Package Weight (lbs.) | 26.41 | Maximum R-Value | 13 |
Features | |||
|---|---|---|---|
Faced/Unfaced | Kraft faced | Stud Spacing (Inches) | 16 |
Formaldehyde Free | Yes | Vapor Retardant | Yes |
Sound Barrier | Yes | ||
Certifications | |||
|---|---|---|---|
CA Residents: Prop 65 Warning(s) | No | GREENGUARD Gold Certified | Yes |
ENERGY STAR Certified | No | ||
Warranty | |||
|---|---|---|---|
Warranty | Limited lifetime | ||
Compatibility | |||
|---|---|---|---|
For Use in Basements | Yes | For Use in Garage Doors | No |
For Use in Crawlspaces | No | For Use in Masonry | No |
For Use in Ceilings | No | For Use in Plumbing | No |
For Use in Attics | No | For Use in Vents | No |
For Use in Doors | No | For Use in Walls | Yes |
For Use in Duct | No | For Use in Windows | No |
For Use in Electrical | No | Fits 2 x 4 Walls | Yes |
For Use in Floors | No | Fits 2 x 6 Walls | No |
Miscellaneous | |||
|---|---|---|---|
UNSPSC | 11162400 | ||
Ratings may include incentivized customer reviews.
What Customers Are Saying
The product provides excellent insulation and sound dampening, keeping homes comfortable year-round. The pre-cut sizes fit wall cavities well, making installation straightforward and efficient. Customers report the insulation material and paper backing are durable with no issues.
Customer review summary generated by AI, including incentivized reviews.Customer Sentiment
Good padding
Good price for this product, definitely has helped make our space keep the heat inside of the room
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L) Verified Purchaser
Great Product
This product worked perfectly for what we needed. The kraft faced keeps me from getting so much insultation on myself and it holds together well.
Verified Purchaser
Good fit for 2”x4”x8’ walls
Used this to insulate the tack room in our barn, fit nicely between the studs on 15” center. The pre-cut pieces are only 93” long, so if your walls are higher than that, you may have to add a piece to make up the difference.
Verified Purchaser
Incorrect number of pieces
I purchased 2 bags of this insulation from Lowe’s and it’s supposed to have 11 pieces per bag. I cut the first bag open and began installing each piece. After putting up 4 pieces, I realized there were only 9 pieces total in the bag, not 11. I continued on and opened the second bag. This one only had 10 pieces, not 11. Therefore, I couldn’t even complete the job I was working on. Not sure if anything can be done about this since I threw my receipt away. I mean, who would think that there ...
Simple & Easy
I appreciate it is easy to handle and therefore install. Covers well.
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L) Verified Purchaser
Kraft facing has issues
I'm a home DIY guy not a pro installer. I installed a little over 600 sq ft of this insulation. The Good Not as itchy as the pink stuff I've worked with before, but long sleeves, gloves and mask are still needed. The Bad The width of the Kraft paper is unforgiving for any space that isn't precisely 24" OC, so I fought with this a lot during install. Just 1/2" extra on each side would have made this much easier to install. The Ugly The Kraft paper was misaligned on 1/3 of the batts. meaning it...
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L)
Thank you for choosing JM for your project! We appreciate the feedback and we will check the alignment of the paper with our production teams!
seconds
the paper face should give 3/4" on either side to staple to studs. i have opened only one pack but the facing was glues on so 11/2" was on one side and none on the other. works fine on vertical walls because it is friction fit but it's impossible to use overhead. when i was young this was called a second and had to be sold as such. now you just sell it all for retail and if it's bad too bad for you. next (and last) time i go to lowes will be to return these seconds
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L) Verified Purchaser
Thank you for letting us know. I have reviewed this information with our product control team and they will address it with future runs of this produ...
Great Insolation!
Low cost with high quality. Notice temp regulation day of install.
Verified Purchaser
Thank you for choosing JM for your project! We hope it was a great success!
Good for DIY wall insulation
A lot of wall space covered by one package. Easy to fit and staple into place.
Verified Purchaser
product was as described, however Ocala Lowes charged almost $50.00 more than the online price for each item. They SUCK!
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L) Verified Purchaser
Hello - thank you for choosing JM! We hope your project was a success! We are sorry to hear about your issue with your local Lowe's. We suggest c...










Hi Kris - our GM has responded with some options via email - thank you for choosing JM and we hope your project is a success!