At a Glance

R-Value per Inch: 3.1429

Stud Spacing: 24 (in)

Sound Barrier

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Johns Manville R- 11 Wall Unfaced Fiberglass Batt Insulation 237.66-sq ft ( 23-in W x 93-in L)

Name: Johns Manville R- 11 Wall Unfaced Fiberglass Batt Insulation 237.66-sq ft ( 23-in W x 93-in L)
Brand: Johns Manville
SKU: 5001920579
Rating: 4.8 (4 reviews)

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4.8

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Maximum R-Value: 11

Faced/Unfaced: Unfaced

Foil scrim kraft faced

Kraft faced

Unfaced

Width (Inches): 23

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Johns Manville Formaldehyde-free unfaced thermal and acoustical insulation offers R-Values up to R-49. It reduces sound transmission through walls, ceilings and floors, and can be added to existing insulation. 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.

Fiberglass batt insulation for use in 2x4 wood-framed walls and basements
Unfaced fiberglass batts do not have a vapor barrier and can be added to existing insulation
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
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	16
Total Package Quantity	64	Framing Type	Wood studs
Insulation Type	Fiberglass

Dimensions
Bag Dimensions (L x W x D)	20 x 20 x 50	Thickness (Inches)	3.5
Coverage Area (Sq. Feet)	237.66	Width (Inches)	23
Length (Inches)	93	R-Value per Inch	3.1429
Package Weight (lbs.)	37.08	Maximum R-Value	11

Features
Faced/Unfaced	Unfaced	Sound Barrier	Yes
Formaldehyde Free	Yes	Stud Spacing (Inches)	24
Multi-Pack Quantity	4	Vapor Retardant	No

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	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

4.8 out of 5

4 Reviews

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100% Recommend this product

Ratings may include incentivized customer reviews.

4 Customer Reviews

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Loews should KEEP STOCK IN STORE!!!

Would Recommend

prefect for what I needed it for

GermanSeptember 14, 2023
From R- 11 Wall Unfaced Fiberglass Batt Insulation 155-sq ft ( 15-in W x 93-in L) Verified Purchaser

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Best Top-Layer Insulation for a R49-Plus Attic

Covering insulation should be resilient and light-weight. Then achieve tight fit with shape conforming to available space, without trimming widths. We don't want puzzle pieces when rearranged someday for access. We certainly don't want loose-fill topping floor joists. 24" width fills well parallel to @24" trusses. I'm so glad that pretty white JM fiberglass is again less expensive that heavy, friable stone-wool batts.

April 11, 2022
From R- 25 Attic Unfaced Fiberglass Batt Insulation 96-sq ft ( 24.0-in W x 96-in L) Verified Purchaser

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COMPARE PRODUCTS

		Name	Current Item Johns ManvilleR- 11 Wall Unfaced Fiberglass Batt Insulation 237.66-sq ft ( 23-in W x 93-in L)
		Ratings	4
		Maximum R-Value	11
		Width (Inches)	23
		Thickness (Inches)	3.5
Johns ManvilleSound Control R- 19 Wall Unfaced Fiberglass Batt Insulation 144-sq ft ( 24-in W x 48-in L)	Johns ManvilleR- 13 Wall Kraft faced Fiberglass Batt Insulation 163.39-sq ft ( 23-in W x 93-in L)	Johns ManvilleR- 11 Wall Kraft faced Fiberglass Batt Insulation 237.66-sq ft ( 23-in W x 93-in L)	Johns ManvilleR- 19 Wall Kraft faced Fiberglass Batt Insulation 133.68-sq ft ( 23-in W x 93-in L)	Johns ManvilleR- 19 Wall Kraft faced Fiberglass Batt Insulation 144-sq ft ( 24-in W x 48-in L)	Johns ManvilleR- 19 Wall Kraft faced Fiberglass Batt Insulation 144-sq ft ( 24-in W x 96-in L)	Johns ManvilleR- 21 Wall Unfaced Fiberglass Batt Insulation 103.97-sq ft ( 23-in W x 93-in L)	Owens CorningR- 13 Wall Unfaced Fiberglass Batt Insulation 192-sq ft ( 24-in W x 96-in L)	Owens CorningR- 15 Wall Unfaced Fiberglass Batt Insulation 103.98-sq ft ( 23-in W x 93-in L)
1	618		256			256	55
19	13	11	19	19	19	21	13	15
24	23	23	23	24	24	23	24	23
6.5	3.5	3.5	6.5	6.5	6.5	5.5	3.5	3.5