Johns Manville R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack

Name: Johns Manville R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack
Brand: Johns Manville
SKU: 1000165301
Rating: 4.7 (1184 reviews)

4.7

1184

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Johns Manville kraft-faced formaldehyde-free™ fiber glass insulation is paper-faced to help control moisture in concealed applications such as exterior walls.

Fiberglass roll insulation for use in 2x4 wood-framed walls
Kraft-faced fiberglass insulation provides a built-in vapor barrier for moisture control
Improves energy efficiency and provides sound control
Rolls are designed for long, unobstructed spaces 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	Multi-pack	Package Count	27
Total Package Quantity	27	Framing Type	Wood studs
Insulation Type	Fiberglass

Dimensions
Bag Dimensions (L x W x D)	15.5 x 19 x 27	Thickness (Inches)	3.5
Coverage Area (Sq. Feet)	40	Width (Inches)	15
Length (Feet)	32	R-Value per Inch	3.71
Package Weight (lbs.)	11.3	Maximum R-Value	13

Features
Faced/Unfaced	Kraft faced	Sound Barrier	Yes
Formaldehyde Free	Yes	Stud Spacing (Inches)	16
Reflective	No	Vapor Retardant	Yes

Certifications
CA Residents: Prop 65 Warning(s)	No	GREENGUARD Gold Certified	Yes
ENERGY STAR Certified	Yes

Warranty
Warranty	1-year limited

Compatibility
For Use in Basements	No	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	30141500

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Review

4.7 out of 5

1184 Reviews

96% Recommend this product

Ratings may include incentivized customer reviews.

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+ 25

What Customers Are Saying

The Johns Manville R-13 insulation is an effective home insulation product that is easy to install and provides good value. Customers report it effectively keeps homes warm and reduces energy costs. While a few minor issues were mentioned, the overall feedback is very positive, with the insulation's quality and performance receiving widespread praise.

Customer review summary generated by AI, including incentivized reviews.

1184 Customer Reviews

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45 minute wait to pick up order

Would Not Recommend

After paying for order, I had to wait in the pickup area for over 45 minutes for my order to be placed in my truck.

Tobybg5July 20, 2026
From R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Individual pack Verified Purchaser

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Response from JohnsManvilleTeam

Thank you for choosing Johns Manville for your project - We are sorry to hear you did not have a great experience. If you have any additional feedbac...

JohnsManvilleTeamJuly 23, 2026

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Johns Manville R- 13 Wall Kraft faced Fiberglass Roll Insulation 40-sq ft ( 15-in W x 32-ft L ) Multi-pack

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