Knauf Insulation EcoBatt R-21 HD Kraft-Faced Fiberglass Insulation Batts, 5-1/2 in. x 23 in. x 93 in., 103.98 sq. ft.

Regular price $136.29

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EcoBatt R-21 HD Kraft-Faced Fiberglass Insulation Batts (5-1/2 x 23 x 93)

High-density Knauf EcoBatt fiberglass batts deliver R-21 thermal performance for 2x6 wall cavities. Kraft facing provides a built-in vapor retarder for easier installation and improved moisture control across 103.98 sq. ft. of coverage.


Key Features:

  • High R-Value Performance: R-21 high-density batts optimize energy efficiency in 2x6 walls
  • Kraft Vapor Retarder: Integral kraft facing for moisture control and quicker install
  • Sized for Speed: Pre-cut 5-1/2 in. x 23 in. x 93 in. batts fit standard 2x6, 24 in. o.c. framing
  • Eco-Friendly Binder: EcoBatt fiberglass with formaldehyde-free ECOSE technology
  • Project Coverage: One bundle covers approximately 103.98 square feet

Specifications Table:

Specification Details
R-Value R-21 (High Density)
Facing Kraft vapor retarder
Material Fiberglass with ECOSE Technology binder
Thickness 5-1/2 in.
Width 23 in.
Length 93 in.
Coverage Area 103.98 sq. ft. per bundle
Form Pre-cut batts

Frequently Asked Questions (FAQ):

Q: What framing is this size intended for?
A: These R-21 HD batts are sized for 2x6 wall cavities, typically 23 in. wide studs spaced 24 in. on center.


Q: Is the vapor retarder included?
A: Yes, these are kraft-faced batts with an attached vapor retarder for the warm-in-winter side of the wall.


Q: How much area does one package cover?
A: One bundle covers approximately 103.98 square feet.


Q: Can this be used in ceilings?
A: It’s primarily designed for 2x6 wall cavities. Check local code and cavity depth for ceilings before use.


Q: What is ECOSE technology?
A: ECOSE is Knauf’s formaldehyde-free binder technology, improving indoor air quality and handling comfort.


Quiet Comfort with a Clean, Crafted Finish

EcoBatt’s high-density profile tucks neatly into 2x6 walls, creating a serene envelope that feels intentional and refined. The kraft face offers a tailored, ready-for-drywall look that keeps lines crisp on site. Pair it with natural wood cladding and matte black fixtures to heighten warmth and acoustic calm. It’s an essential layer of luxury—comfort you can’t see but absolutely feel.


Elevate your wall performance with EcoBatt R-21 HD—add it to your cart and start sealing in comfort and efficiency today.

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