SKU: 21028469059

Knauf Insulation EcoBatt R-15 Kraft-Faced Fiberglass Insulation Batt, 3-1/2 in x 23 in x 93 in, 89.13 sq ft

Sale price$67.27 Regular price$74.74
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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For Your Every Summer RSVP, with Code: SUMMER15

Description

Knauf Insulation EcoBatt R-15 Kraft-Faced Fiberglass Insulation Batt, 3-1/2 in x 23 in x 93 in, 89.13 sq ftR 15 EcoBatt Kraft Faced Fiberglass Insulation Batt (3. 5" x 23" x 93") High density R 15 EcoBatt fiberglass batts with Kraft facing deliver reliable thermal and acoustic performance for 2x4 wall cavities. Made with ECOSE Technology and over 50% recycled glass, theyre soft to handle, easy to cut, and formaldehyde free. Key Features: Efficient Thermal Performance: R 15 high density batts sized for 2x4 walls to improve energy efficiency Eco Friendly

R-15 EcoBatt Kraft-Faced Fiberglass Insulation Batt (3.5" x 23" x 93")

High-density R-15 EcoBatt fiberglass batts with Kraft facing deliver reliable thermal and acoustic performance for 2x4 wall cavities. Made with ECOSE Technology and over 50% recycled glass, they’re soft to handle, easy to cut, and formaldehyde-free.


Key Features:

  • Efficient Thermal Performance: R-15 high-density batts sized for 2x4 walls to improve energy efficiency
  • Eco-Friendly Composition: Made with ECOSE Technology using over 50% recycled glass; formaldehyde-free and GREENGUARD Gold certified
  • Kraft Vapor Retarder: Kraft facing helps manage moisture in appropriate climate zones
  • Easy Handling: Flexible batts that are soft to the touch, less itchy, and simple to cut for fast installation
  • Sound Control: Helps reduce noise transmission between rooms and floors

Please check the Product Data Sheet Here


Specifications Table:

Specification Details
R-Value R-15
Facing Kraft
Material Fiberglass (glass mineral wool)
Thickness 3.5 in (3-1/2 in)
Width 23 in
Length 93 in
Coverage per bag 89.13 sq ft
Batts per bag 6
Certification GREENGUARD Gold; formaldehyde-free
Recycled Content Over 50% recycled glass
Technology ECOSE Technology
Use Thermal and acoustic insulation for walls and floors

Frequently Asked Questions (FAQ):

Q: How many square feet does this bag cover?
A: This 3.5 in x 23 in x 93 in size covers approximately 89.13 sq ft per bag.


Q: Is the insulation formaldehyde-free?
A: Yes, EcoBatt batts are bonded with ECOSE Technology and are formaldehyde-free, GREENGUARD Gold certified.


Q: Can these batts be used for interior sound control?
A: Yes, they provide effective acoustic performance for interior walls and floors.


Q: Do I need special tools to install?
A: No—batts are easy to cut and fit with a utility knife; follow the installation guide for best results.


Warmth, Whisper, and Texture—Refined Comfort for Everyday Living

EcoBatt’s natural, earthy hue brings a quiet sophistication behind the walls, while its R-15 density shapes rooms with balanced warmth and hush. The Kraft facing creates a clean, tailored layer that installs with grace. Pair with matte black hardware and pale oak finishes to let the calm resonate. It’s the understated essential that elevates a home’s feel to luxurious, lived-in comfort.


Upgrade your 2x4 walls with eco-friendly R-15 performance—add EcoBatt to your cart and insulate smarter today.

Installation

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]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21028469059

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4.5 ★★★★★
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OhhDJ
Bozeman, US
★★★★★ 2
too small
I saw these and instantly thought they would be amazing! I was hoping for just that. I received them today and tried them right away. I love the gel feel but im not really liking the way they kept rolling off. They're a bit too small id say and when walking they roll off from the back. I didnt think my foot was other than average? Maybe? Im a size 7 in women's shoes.
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Reviewed in the United States on September 12, 2025
M
Verified Purchase
M Johnson
Charlottesville, US
★★★★★ 5
Super Awesome
I have the driest feet, my mom did too so I should have known that I would inherit it as an adult myself. My toes literally crack and split open from dry skin, I call them fissures. They really hurt. Last night I used my cheese grater foot file gently on my heels and calloused parts, and then applied liberal lotion, and wore those squishy socks all night. I woke up to the most moisturized youthful feet I’ve ever seen attached to my body! Wow these totally work!!! I even slept better than I have in a very long time. I’m very pleased. These did exactly what I hoped they would do.
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Reviewed in the United States on February 18, 2026
M
Verified Purchase
Manda
Waukegan, US
★★★★★ 5
Amazing!
Number of Items: 1
Wow, what to say about this glitter spray. If you want to cosplay as a Twilight vampire, buy this spray. Haha. I’m not even kidding. I got this spray for going to a concert - one of the few occasions I go all out in getting dressed up. I LOVE sparkly/shiny/glittery things, so this spray seemed like an obvious choice. I did a very light, quick spray over my face/neck and OH. MY. GOSH. “I look like a vampire from Twilight.” My first thought/words after looking at myself in the mirror. My mom got a pretty big kick out of it and couldn’t stop giggling because that’s all she could think about afterward whenever she looked at me. I expected this spray to be something I’d have to spray multiple coats of, but absolutely not. This is a one and done spray. The glitter is HIGHLY CONCENTRATED. Very, very sparkly with multifaceted color sparkles - not just silver. I got some on my hair when I sprayed myself, so I went ahead and sprayed the back of my hair too. Didn’t put any kind of film or anything in my hair. I was still able to brush it and do everything else as if there was nothing in my hair. At the end of the night, it washed off very easily. I will say as a pointer, unless you want your hair or clothes to have glitter on them as well, then you should apply this glitter spray BEFORE you get dressed and you should wear a shower cap/bag/something to cover your hair while applying. However, it works just fine on your hair and clothes as well - no staining or damage. The can looks small BUT with how little you have to use, one can will go a very long way. I could go to 10 concerts and I’m pretty sure this can would still be more than half full. HIGHLY RECOMMEND!
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Reviewed in the United States on April 13, 2025
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Verified Purchase
Clare
Cuba, US
★★★★★ 5
best body glitter
Number of Items: 1
best body glitter ever. so gorgeous. smells good but it does have a strong scent so anyone sensitive to that might have a problem, but it's so nice. small bottle, but packs a punch of glitter. SO PRETTY!
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Reviewed in the United States on March 22, 2026
G
Verified Purchase
Gabby Lua
Bozeman, US
★★★★★ 5
SO SPARKLY!
Number of Items: 1
IT MADE ME SO SHINY! I love this spray so much. It dries quickly and lasts a while. Even though the bottle is small, a little bit goes a long way. It is easy to apply and is small enough you can carry it around so you can glitter other people, since people will definitely ask! I have used this one bottle many times.
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Reviewed in the United States on April 9, 2026

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