R-19 Unfaced Fiberglass Batt Insulation (24" x 48", 144 sq ft)

JM R-19 unfaced fiberglass batt insulation is designed for thermal and sound control in 2 x 6 wall cavities, especially with steel-stud framing. Pre-cut 24 in x 48 in batts press-fit between studs for straightforward installation and 144 sq ft of coverage per package.

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Key Features:

• Sound & Thermal Performance: R-19 fiberglass batts help improve energy efficiency while reducing sound transmission through interior walls.
• Made for 2x6 Steel-Stud Walls: Sized for 24-in on-center framing and pre-cut for standard 8-ft wall cavities.
• Unfaced for Flexible Use: No vapor retarder—ideal for adding to existing insulation where appropriate.
• Cleaner Indoor Air Choice: Formaldehyde-free and GREENGUARD Gold certified.
• Durable Inorganic Fibers: Will not rot, mildew, or deteriorate; noncorrosive to wiring, pipes, and metal studs.

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Specifications Table:

Specification	Details
Category	Batt Insulation
Series Name	Sound Control
Insulation Type	Fiberglass
Faced/Unfaced	Unfaced
Maximum R-Value	19
R-Value per Inch	2.9231
Width (Inches)	24
Length (Inches)	48
Thickness (Inches)	6.5
Coverage Area (Sq. Feet)	144
Package Count	18
Total Package Quantity	72
Package Type	Multi-pack
Multi-Pack Quantity	4
Framing Type	Steel studs
Stud Spacing (Inches)	24
Sound Barrier	Yes
Formaldehyde Free	Yes
Vapor Retardant	No
ENERGY STAR Certified	Yes
GREENGUARD Gold Certified	Yes
Warranty	1-year limited
Bag Dimensions (L x W x D)	24.5 x 20 x 49
Package Weight (lbs.)	35.33
For Use in Basements	Yes
For Use in Crawlspaces	Yes
For Use in Ceilings	No
For Use in Attics	No
For Use in Doors	No
For Use in Duct	No
For Use in Electrical	No
For Use in Floors	No
For Use in Garage Doors	No
For Use in Masonry	No
For Use in Plumbing	No
For Use in Vents	No
For Use in Walls	Yes
For Use in Windows	No
Fits 2 x 4 Walls	No
Fits 2 x 6 Walls	Yes
UNSPSC	11162400
Flame Spread Index	<25
Smoke Developed Index	<50
Water Vapor Sorption	<5 %
Standards/Certifications	ASTM C665 Type I; ASTM E136; IBC; Energy Star Certified; Greenguard Gold Certified; Indoor Air Quality Certified; NAIMA 16 CFR Part 460; Recycled Content Certified
Application	For New Construction, Remodels, Walls, Floors, Ceilings, Basements, Attics and Crawlspaces
For Use With	Steel Stud Framing
Material	Fiberglass
Manufacturer Part #	AU333

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Frequently Asked Questions (FAQ):

Q: Is this insulation faced or unfaced?
A: It is unfaced fiberglass batt insulation (no built-in vapor retarder).

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Q: What size walls does this fit?
A: It is intended for 2 x 6 wall cavities and 24-in on-center stud spacing (steel-stud framing is specified).

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Q: How much area does one package cover?
A: One package covers 144 sq ft.

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Q: Can this help with sound control?
A: Yes—this product is specified as a sound barrier and is marketed for interior wall sound control.

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Q: What certifications does it have?
A: It is listed as ENERGY STAR certified and GREENGUARD Gold certified, and includes recycled-content certification.

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Quiet Luxury, Built Into the Walls

There’s a particular kind of luxury you feel before you ever see it—when a room holds its temperature, softens the noise, and instantly reads as calm. These R-19 unfaced fiberglass batts slip into 2x6 cavities with a clean, tailored fit, creating an invisible envelope of comfort and hush. Use them strategically in bedrooms, offices, and media spaces where tranquility is the ultimate finish. It’s the behind-the-scenes layer that makes a home feel impeccably considered.

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Upgrade comfort and quiet—install JM R-19 unfaced fiberglass batts for efficient, sound-dampening performance in your 2x6 walls.