At a Glance

R-Value per Inch: 3.71

Stud Spacing: 16 (In.)

Sound Barrier

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Johns Manville R- 13 Wall Kraft faced Fiberglass Batt Insulation 106.56-sq ft ( 15-in W x 93-in L)

Name: Johns Manville R- 13 Wall Kraft faced Fiberglass Batt Insulation 106.56-sq ft ( 15-in W x 93-in L)
Brand: Johns Manville
SKU: 3011685
Rating: 4.7 (539 reviews)

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4.7

539

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Width (Inches): 15

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Johns Manville Faced Insulation Collection

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Johns Manville formaldehyde-free kraft-faced thermal and acoustical insulation offers R-values up to R-49. It is ideal for moisture control in exterior walls, reduces sound transmission through walls, ceilings and floors. JM insulation is compression-packaged for space savings, and is offered in precut batts to fit standard wall cavities for both vertical and horizontal applications.

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	3.71
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

Check out the Best Selling Batt Insulation on Lowes.com

Review

4.7 out of 5

539 Reviews

95% Recommend this product

Ratings may include incentivized customer reviews.

+ 13 images

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.

539 Customer Reviews

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Customer Sentiment

Customer liked

Could feel and hear the difference

Would Recommend

Very easy to work with

DaddycecsApril 5, 2026
Verified Purchaser

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Price and use

Would Recommend

Bought this a few times now, great for the price and extra noise barrier between walls in a home I am renovating

MadvMarch 19, 2026
Verified Purchaser

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/a6064fa8-fa15-5df1-9762-c383cce0c1bd

https://photos-us.bazaarvoice.com/photo/2/cGhvdG86bG93ZXM/935ab78a-4403-5f64-96fd-e8c45b2138e8

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Good stuff

Would Recommend

Pretty easy to apply especially since it has flaps. It fits perfectly into my 24 OC studs. The paper is pretty for as well so it doesn't rip easily

MattMarch 15, 2026
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L) Verified Purchaser

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Good padding

Would Recommend

Good price for this product, definitely has helped make our space keep the heat inside of the room

ShayyFebruary 25, 2026
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L) Verified Purchaser

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