Knauf Insulation EcoBatt R-15 Kraft-Faced Fiberglass Insulation Batt, 3-1/2 in x 23 in x 93 in, 89.13 sq ft
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 5 - Jul 10

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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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Scraps
Boise, US
★★★★★ 4
Good at price
Size: 9 Wide, Color: Sand
Fit a little small at my big toe but otherwise fit well. Heel rubbed slightly first 5 hour wear but no blister.
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Reviewed in the United States on May 9, 2026
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Lynn
Fort Morgan, US
★★★★★ 5
Lightweight comfortable at a good price!
Size: 10.5, Color: Navy
These shoes are perfect. The color matches my navy outfits as well as my denim. They are comfortable and they look great. They are easy to pack lightweight and a great value. I am extremely satisfied and highly recommend!
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Reviewed in the United States on June 3, 2026
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PHOEBES
Phoenix, US
★★★★★ 3
REALLY CUTE SHOE BUT CUT WAY TOO SMALL!
Size: 8, Color: Black Patent
I received the black patent leather shoes today and they are so cute! Sadly I need to return them because they are cut way too small. I normally wear a 7.5 or 8 on dress shoes so I ordered the 8. They are so tight across the top that it's uncomfortable as soon as I put them on. They are smaller than a normal size 8 dress shoe. The big toe area is extremely uncomfortable because it doesn't allow any room for it at all, so my big toe just presses against the side and end of the shoe without even walking in them. I have very narrow feet and these still are too small for me. So I am returning them and I already ordered a 8.5 W and hope that will fit much better. The patent leather is very cute and adds just enough dressy that I can wear them with slacks or my Capri jeans. I like the slip on and the cushion foot bed because it feels soft.
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Reviewed in the United States on May 26, 2026
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Verified Purchase
Amazon Customer
Waukegan, US
★★★★★ 5
Love these flats!
Size: 9 Wide, Color: Black White Faux Snake Skin, Size: 9 Wide, Color: Black White Faux Snake Skin
One of my favorite pair of flats! I’ve had these for several years and they are still comfortable, in good shape and really add a little spice to my outfits. I can wear these all day and not have any foot pain or discomfort as a result. The quality is good, fit is perfect and I tend to have difficulty with shoes due to bunions. Love these!!
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Reviewed in the United States on May 23, 2026
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lunaposas
Waukegan, US
★★★★★ 5
LOVE LOVE.
Size: 7.5 Wide, Color: Beige
I love these shoes so much I had to write a review. So comfortable. Cushioned. Fits perfectly especially if you are more on the wide side. They are soft. Flexible. Easy slip ons you can walk around in all day. I want to try more colors.
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Reviewed in the United States on June 4, 2026

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