SKU: 8893965976

Knauf Insulation EcoBatt R-11 Unfaced Fiberglass Insulation Batts, 3.5 in. x 24 in. x 96 in., 256 sq. ft. (4 Bags)

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Description

Knauf Insulation EcoBatt R-11 Unfaced Fiberglass Insulation Batts, 3.5 in. x 24 in. x 96 in., 256 sq. ft. (4 Bags)R 11 EcoBatt Unfaced Fiberglass Insulation Batts, 24 in. x 96 in. Knauf EcoBatt R 11 unfaced fiberglass batts deliver reliable thermal and sound control for 2x4 interior or exterior walls, floors, and ceilings. Pre cut for 8 ft steel stud walls, they install easily, recover to full thickness, and are bonded with plant based, formaldehyde free ECOSE Technology. Key Features: Thermal & Acoustic Performance: R 11 batts help regulate temperature and

R-11 EcoBatt Unfaced Fiberglass Insulation Batts, 24 in. x 96 in.

Knauf EcoBatt R-11 unfaced fiberglass batts deliver reliable thermal and sound control for 2x4 interior or exterior walls, floors, and ceilings. Pre-cut for 8-ft steel stud walls, they install easily, recover to full thickness, and are bonded with plant-based, formaldehyde-free ECOSE Technology.


Key Features:

  • Thermal & Acoustic Performance: R-11 batts help regulate temperature and reduce noise in walls and floors.
  • Easy Installation: Pre-cut 24 in. x 96 in. batts for 2x4, 8-ft walls; softer feel for simple cutting and fitting.
  • Healthier Materials: Formaldehyde-free ECOSE Technology; GREENGUARD Gold certified and free of Red List chemicals.
  • Sustainable Build: Made with a high percentage of recycled glass and compression-packed for efficient transport and storage.
  • Snug Fit: Resilient fibers recover quickly to full thickness for consistent coverage.

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
Insulation Type Fiberglass batt
R-Value R-11
Facing Unfaced
Batt Size 24 in. W x 96 in. L x 3.5 in. T
Fits Stud Depth 2x4 wall
Coverage Area per Bag 256 sq. ft.
Number of Pieces per Bag 16
Compatible Install Surfaces Concrete; Existing drywall; Metal; Plywood; Wood
Insulation Locations Interior wall; Exterior wall; Floor
Roll or Batt Batt
Product Weight 36.37 lb
Bag Size 4.17 ft. x 25 in. x 16 in.
Pack Size 1
Warranty 1-year limited

Frequently Asked Questions (FAQ):

Q: How much area does this package cover?
A: 256 sq. ft. total coverage.


Q: Where can I install these batts?
A: Suitable for 2x4 walls (interior/exterior), floors, and ceilings; compatible with wood, metal, plywood, existing drywall, and concrete surfaces.


Q: Are these batts faced?
A: No, they are unfaced fiberglass batts.


Q: What are the dimensions of each batt?
A: Each batt is 24 in. wide x 96 in. long x 3.5 in. thick.


Q: Is there an installation guide?
A: Yes—see the linked Instructions/Assembly PDF for step-by-step guidance.


Quiet Comfort, Cleverly Engineered

EcoBatt’s warm, natural tone and clean lines slip effortlessly behind your finishes, crafting rooms that feel hushed and composed. I love its resilient loft—once in place, it springs to a full, plush thickness for a seamless envelope. Pair it with crisp gypsum walls and matte black hardware to heighten the sense of calm. It’s the invisible luxury that elevates everyday living.


Upgrade your walls with EcoBatt R-11 today for quieter, more comfortable rooms with eco-friendly performance.

Warranty

Installation

Shipping Notes
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SKU: 8893965976

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4.2 ★★★★★
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G P
Alexandria, US
★★★★★ 5
it's kubrick. it's a masterpiece.
i don't really like movies about couples but being kubrick, i gave it a chance. the cinematography is just so incredibly rich, not only with flashy scenes and beautiful colors and framing, but with all these referential easter eggs and nuggets of hints and symbolism and...oh my god it's just RICH. if you like psychological and mystery stuff, and photography, and lurid secret society stuff, this movie is incredible. i will watch it again for sure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 4
4k blu ray scenes freeze
The movie is good. The 4k blu ray froze at one scene and skipped ahead a few scenes. It makes me sad. Hopefully the blu ray doesn't freeze.
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Reviewed in the United States on April 25, 2026
M
Verified Purchase
m-chan
New York, US
★★★★★ 5
The 4K's Rating
I'm not sure what's going on with this release, as it gets praised by some, condemned by others. Very strange. For me, all the criticism of the colors in some scenes (like the teal & orange bedroom scene) makes no sense, because those colors do not appear as saturated and forceful on my Panasonic 4K player and Samsung 42" 4K TV. They look noticable, as teal and orange naturally clash at any strength. But they don't look entirely unnatural. As for the grain, it iS awful during the initial party scene, to the point of distraction. But as the movie progresses, it seems to weaken. I'm not sure at what exact point the distraction ends, only that I became fully absorbed in the movie before Bill's nocturnal "adventures." (As a matter of note, I don't oversharpen in the settings, and don't bump up saturation.) This rating is for the 4K. I've only watched about 20 minutes of the blu-ray, during which I encountered a 3-4 second sound dropout that was troublesome. As in SILENCE. It's something I intend to contact Criterion about, to see if this is an anomaly (in which case I'll initiated a replacement from Amazon). If it's a general problem, I'll ask Criterion for a blu-ray replacement. I want to watch more of the blu-ray before taking any action, in case there are more dropouts to report. BTW, the blu-ray looks quite good to me, altho I think the 4K is slightly more detailed.
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Reviewed in the United States on January 11, 2026
K
Verified Purchase
Kindle Customer
Natrona Heights, US
★★★★★ 5
VERY COOL
Wow HOT
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Reviewed in the United States on May 13, 2026
J
Verified Purchase
JustAnOpinion
New York, US
★★★★★ 5
One of my all-time favorites looking better than ever!
Firstly, the bad (see pictures). I'm not knocking off any stars, because there's nothing wrong with the movie/4K transfer. If you see the 4K variant listed for cheap, be aware you may need to buy a new case, which for a single is roughly $8-$9 per, and $22 if you buy a pack. I had a case, and just moved the slip cover over. Not ideal, but... If I didn't have a spare case I would've had it replaced. For a movie that's special to me as this one is I'd prefer to have the OEM case. Something just feels less authentic knowing I had to transfer a movie (one of my all-time favorites) that recently got a 4K transfer, into another case. Just be aware of this if you see it pop up for sale on Amazon for a low price. It's possible it could have something to do with shipping, but this was shipped from Amazon. I just don't "think" it would be crushed so bad to break the plastic housing into pieces on the top, bottom, and bottom of the spine from shipping. The seller may not have shipped it in this condition, but I assume they did, or I wouldn't imagine it would've been listed as cheap as I got it for. I'm not knocking the seller or Amazon. It was a great deal overall, but maybe not so much so if I hadn't had a spare case. The improvements to the 4K variant are very good. The contrast and black levels are drastically improved over the HD Blu-ray. Colors are better, and the overall transfer just looks great. It's a genuine 35mm transfer, and with the resolution boost I can see things in this movie now that I don't ever recall being able to see before. I may be redundant here, but truly, the black levels of the suits are excellent. No more gray looking suits. The overall contrast of the film is greatly enhanced. Film grain: I think this is important to mention, because it won't be long before 120+ inch TVs are more widely available, and affordable. I'm viewing this on a 120" screen projected from a Sony laser projector, and I'm not saying that as a humble brag. I'm simply saying I realize most will be viewing this on smaller screens at the time of writing this review, and the film grain will be less evident for the average viewer. Even at 120" it looks good. Too many details may have been scrubbed away if they tried to remove all of the film grain, and it would lose that 35mm look. Now, Jurassic Park 4K? I have to watch it on a smaller screen to be bearable, because the film grain in Jurassic Park 4K is intolerably bad for my liking. For anyone who owns and enjoys older films that are really special to you, never get rid of your smaller screen if you do eventually move up to 100+ inches, because even as horrible as the film grain is on Jurassic Park 4K at 120", it looks like it was shot yesterday when I watch it on a 65". I imagine Dark City 4K would look amazing on anything below 100" (unless you sit really close to the screen), but again, it still looks really good to me at 120". This film is one of my childhood and all-time favorites. I won't write a review explaining the movie itself, because I imagine most people who are reading this have already seen and love this film, and are only looking to see what the improvements are for the 4K transfer. Search YouTube "Dark City 4K Vs HD" for really good side-by-side comparisons so you can see just how much they put into this. I think the channel name is "Twin Flicks" that I watched the comparison on before purchasing this/Dark City in 4K. I highly recommend the 4K variant of Dark City from Arrow. I'm not really qualified to say, but I think they did a great job with this transfer.
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Reviewed in the United States on January 23, 2026

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