SKU: 52809672090

JM R-19 Unfaced Fiberglass Batt Insulation, 24 in x 48 in, 144 sq ft (18-Pack)

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Description

JM R-19 Unfaced Fiberglass Batt Insulation, 24 in x 48 in, 144 sq ft (18-Pack)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. Key Features: Sound & Thermal Performance: R 19 fiberglass batts help improve energy efficiency while reducing sound

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.


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.

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

Frequently Asked Questions (FAQ):

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


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).


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


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.


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


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.


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

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 52809672090

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Product Reviews
A
Verified Purchase
Amazon Customer
Boise, US
★★★★★ 5
Extremely comfortable, leather sole. Hard to find a style.
Size: 13.5-14.5 Women/12-13 Men, Color: Navy Blue, Size: 13.5-14.5 Women/12-13 Men, Color: Navy Blue
Totally worth the price. This type of style is very hard to find, my husband had another pair a few years ago that he was never able to replace. These fit his wide feet and are very comfortable. The elastic at the ankle is not too tight. So glad I was able to find him a replacement. We bought the blue in a size 12. Love the fact that they are washable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
M
Verified Purchase
Michael Arnhold
Los Angeles, US
★★★★★ 5
Very comfortable Slippers. Great buy!
Size: 12-13 Women/10.5-11.5 Men, Color: Charcoal
I bought these to replace a pair of slippers that I have had for years that are very similar to the slippers I bought, but I had worn a hole in the leather on mine, so I had to find something new and similar. These slippers are worth the money they are very comfortable, and I am sure they will last for years. They are a little tight around the ankle cuff but they are still new and I am sure they will wear in a little more when I start wearing them more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2025
J
Verified Purchase
Jenn
Houston, US
★★★★★ 3
Great slippers but disappointing quality.
Size: 7.5-8.5 Women/6-7 Men, Color: Ash, Size: 7.5-8.5 Women/6-7 Men, Color: Ash
Extremely comfortable, attractive slippers but the stitching came loose on both leather trim areas almost immediately. I tried to sew/glue down the stitching (as seen in photo) but it kept unraveling. Disappointing as these slippers are great in every other way (though they do run a bit big...I wear a 9 but ended up with a 7.5-8.5 which fits with a bit of room to spare even with thick socks). I just hope they hold up after my latest attempt to stop the thread from pulling out any more as I do really love wearing them. Perhaps I just got a bum pair?
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2024
M
Verified Purchase
Masselyn
Whiting, US
★★★★★ 5
Tight at first, but they stretch after a short time...feel perfect after the first week!
Size: 9.5-10.5, Color: Charcoal Faux Fur
I love them! My first impression was "oooh, this is too tight". I wear a size 10 shoe and honestly, the 9.5-10.5 felt tight when I first tried it. Without socks it felt okay, with socks my toes were right at the top. But I loved the style so much I decided to give it a chance - I am SO glad I did!!! They do stretch and give, so don't expect it to be tight forever. I have had them a week or so, wearing each day (I WFH) and they feel really nice. I also live in the mountains, we just had our first winter storm, and these slippers are nice and toasty. Exactly what I needed. The memory foam is plush, though I have had other slippers with it and I know it will squash down over time. Right now, it is a nice feeling as I walk around the house. They are super cute looking, wearing leggings allows me to feel like I am stylish even while still wearing my sleep thermals. YAY!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2025
A
Verified Purchase
Alyene
Dallas, US
★★★★★ 5
favorite slipper ever
Size: 8-9, Color: Charcoal Faux Fur
I love these slippers. They look great with pants tucked in. Incredibly warm and comfortable. I wear them almost every day. Fit is true to size. They stay up but are not tight at all. On top of that I get compliments on them. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026

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