SKU: 98448773416

Knauf Insulation EcoBatt R-13 Unfaced Fiberglass Insulation Batts, 3-1/2 in. x 23 in. x 93 in., 163.4 sq. ft.

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Description

Knauf Insulation EcoBatt R-13 Unfaced Fiberglass Insulation Batts, 3-1/2 in. x 23 in. x 93 in., 163.4 sq. ft.EcoBatt R 13 Unfaced Fiberglass Insulation Batts (23 in. x 93 in.) Thermal and acoustical fiberglass batt insulation for walls, floors, and ceilings. Unfaced EcoBatt delivers R 13 performance with low dust and easy handling, covering 163. 4 sq. ft. per package. Key Features: R 13 Thermal Performance: Helps improve energy efficiency and comfort in 2x4 wall cavities Unfaced Fiberglass Batts: Versatile for various assemblies and vapor control strategies

EcoBatt R-13 Unfaced Fiberglass Insulation Batts (23 in. x 93 in.)

Thermal and acoustical fiberglass batt insulation for walls, floors, and ceilings. Unfaced EcoBatt delivers R-13 performance with low dust and easy handling, covering 163.4 sq. ft. per package.


Key Features:

  • R-13 Thermal Performance: Helps improve energy efficiency and comfort in 2x4 wall cavities
  • Unfaced Fiberglass Batts: Versatile for various assemblies and vapor control strategies
  • EcoBatt with ECOSE Technology: Low-odor, formaldehyde-free binder for better indoor air quality
  • Contractor-Friendly Size: 3-1/2 in. x 23 in. x 93 in. batts fit 24 in. on-center framing
  • 163.4 sq. ft. Coverage: Ideal for larger projects with consistent, even fill

Specifications Table:

Specification Details
Insulation Type Fiberglass batt
Facing Unfaced
R-Value R-13
Width 23 in
Length 93 in
Thickness 3-1/2 in
Coverage Area 163.4 sq. ft. per package
Series B66AK
Quantity in Master Bag 8
Use Location Attic, Basement, Ceiling, Crawlspace, Wall, Floor

Frequently Asked Questions (FAQ):

Q: What framing does this size fit?
A: These 23 in. x 93 in. batts fit 24 in. on-center stud or joist spacing for 8-ft. to 9-ft. runs in 2x4 cavities (3-1/2 in. depth).


Q: Is a vapor retarder included?
A: No. These are unfaced batts; add a separate vapor retarder if required by local code.


Q: Where can I use it?
A: Suitable for walls, floors, ceilings, attics, crawlspaces, and basements where R-13 is specified.


Q: How much area does one package cover?
A: One package covers 163.4 square feet.


Q: What is the material?
A: Inorganic fiberglass bonded with ECOSE technology binder.


Quiet Comfort, Clean Lines

EcoBatt nestles into a wall cavity to hush the room and steady the climate, letting finishes truly shine. The unfaced profile keeps assemblies streamlined while ECOSE technology delivers a cleaner, low-odor install. Pair it with smooth drywall and matte hardware to heighten the calm, gallery-like vibe. It’s a discreet luxury—comfort you feel, not see.


Upgrade your project’s comfort and efficiency—add EcoBatt R-13 Unfaced to your cart today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 98448773416

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Michelle sealock
Lowell, US
★★★★★ 5
Looks and feel good
Size: 10.5, Color: Black
Shoes look dressy but feel comfortable. They are stiff but very comfortable.
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Reviewed in the United States on June 8, 2026
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Riley H.
Charlottesville, US
★★★★★ 5
Well made and affordable
Size: 10.5, Color: Brown
Very comfortable, great price!!!!!!
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Reviewed in the United States on April 30, 2026
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George M. Occhipinti
San Leandro, US
★★★★★ 5
Very handsome shoe
Size: 7, Color: Brown
Beautifully made shoe. Comfortable, great fit. Very handsome on foot. Can wear with anything. Very pleased
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Reviewed in the United States on April 18, 2026
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toddt0606DC
Charlottesville, US
★★★★★ 5
From a Long Time Hard Sole Dress Shoe Wearer, These are a Must Have!
Size: 12, Color: Blue
I have been wearing hard sole dress shoes for decades and with the full COVID shift to dressing super casual in a professional work environment, I was in the market for some more casual let dressy shoes that were a heck of a lot more comfortable and flexible than my hard soles so I thought I would give this brand and style a try. Oh man, I'm in love. These give you that dressier look yet you can totally dress them down with jeans or cordouroys, so versatile. As I did with my hard soles, I inserted one of my Nike Air in soles and man, these are so comfortable I bought navy and brown! I usually wear these with thin dress socks and they go perfectly with any type of suit set, a no brainer purchase here. I'm a 12 and bought a 12, perfect fit, not to skinny, not to wide, just right. Bottom sole grip is impressive, never felt unstable, solid rubber sole here. I decided to lace them up so there are not tying and the tongue does slip down sometimes so with this feature, best to use a metal shoe horn, then it's super easy to slide them on, they seem to take a beating and remain clean too, I've definitely scuffed them up against many things and still no damage, it's crazy, must have a great finish. NOTE TO Note to MANUFACTURER/SELLER - You need to make a version in GRAY in this specific style and I will buy them instantly, and I assure you they will be incredibly popular! Really not sure why there isn't more colors in these like gray, shades of gray, maybe red, lighter blue and maybe some with different tones in standard colors. Casual dress shoe wearers are looking for new and exciting bold colors so this is the perfect shoe type to deliver on that.
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Reviewed in the United States on January 6, 2024
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Z. Ed
Grantham, US
★★★★★ 5
Finally, a dress shoe that actually feels like a sneaker!
Size: 8.5, Color: Dark Brown
I was honestly super skeptical about buying shoes on Amazon, especially "dress sneakers." Usually, they either look incredibly cheap in person or they completely destroy your heels within an hour. I am so glad I took a chance on these Bruno Marcs. I commute to campus and take the bus almost every day, so I end up doing a ton of walking. I needed something that looked sharp and put-together, but I absolutely refused to sacrifice comfort for a long day on my feet. These completely hit the mark. Right out of the box, there was zero break-in period—no stiffness, no pinching, and no blisters. They are incredibly lightweight, and the material actually looks premium, not like that shiny, fake plastic you sometimes get at this price point. The traction on the bottom is surprisingly good too, which is a lifesaver when I'm rushing to catch my bus on rainy mornings. If you’re on the fence, just get them. It’s rare to find a shoe that balances looking professional with feeling exactly like your favorite weekend sneaker. Easily one of the best wardrobe purchases I've made in a while!
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Reviewed in the United States on April 4, 2026

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