At a Glance

R-Value per Inch: 3.71

Stud Spacing: 24 (In.)

Sound Barrier

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Johns Manville R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L)

Name: Johns Manville R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L)
Brand: Johns Manville
SKU: 3006486
Rating: 4.7 (544 reviews)

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Width (Inches): 23

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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 24-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)	23.5 x 20 x 49	Thickness (Inches)	3.5
Coverage Area (Sq. Feet)	163.39	Width (Inches)	23
Length (Inches)	93	R-Value per Inch	3.71
Package Weight (lbs.)	40.49	Maximum R-Value	13

Features
Faced/Unfaced	Kraft faced	Stud Spacing (Inches)	24
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

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Review

4.7 out of 5

544 Reviews

95% Recommend this product

Ratings may include incentivized customer reviews.

+ 13 images

What Customers Are Saying

This insulation product is effective at providing good insulation and is easy to install. Customers noted the insulation has great insulating properties and the pre-cut sizes make it straightforward to work with. Many found it helped reduce noise and temperature fluctuations in their homes and garages. Overall, the insulation is considered a high-quality, reliable product that is simple to use and delivers good results.

Customer review summary generated by AI, including incentivized reviews.

544 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
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 106.56-sq ft ( 15-in W x 93-in L) 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
From R- 13 Wall Kraft faced Fiberglass Batt Insulation 106.56-sq ft ( 15-in W x 93-in L) 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
Verified Purchaser

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Johns Manville R- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L)

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