Knauf Performance+ R-15 Unfaced Fiberglass Batt Insulation, 23 in x 93 in (89.13 sq ft) – B93E

Regular price $71.75

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R-15 Unfaced Fiberglass Batt Insulation (23 in x 93 in)

Knauf R-15 unfaced fiberglass batt insulation is designed for wood or metal framed construction to help improve thermal comfort and acoustical control. The high-density, tear-resistant batts cut easily for fast installation across walls, floors, ceilings, and more.


Key Features:

  • Thermal + Sound Performance: Engineered to help maintain temperatures and absorb excess noise for more comfortable rooms
  • Unfaced Flexibility: Works with the vapor retarder of your choice for a wide range of assemblies
  • Fast, Cleaner Installs: Cuts easily and installs quickly with low dust
  • Resilient Fit: Recovers quickly to full thickness for a snug, consistent fill
  • Tear Resistance: Designed to resist tearing during handling and placement

Specifications Table:

Specification Details
R-Value R-15
Facing Type Unfaced
Material Fiberglass
Width 23 in
Length 93 in
Thickness 3-1/2 in
Coverage Area 89.13 sq-ft
Color Brown
Series Pro Cut Series
Sub-brand Performance+®
Installation Locations Attic, Basement, Ceiling, Crawlspace, Floor, Wall
Resists Tear
Additional Information Staple-Free
Temperature Rating 400 deg F
Fire Test / Classification (per description) ASTM E84; Fire Hazard Classification 25/50 or less
Item Code B93E

Frequently Asked Questions (FAQ):

Q: Where can this batt insulation be installed?
A: It’s listed for attic, basement, ceiling, crawlspace, floor, and wall applications.


Q: Does it include a vapor retarder facing?
A: No—this product is unfaced, allowing you to use the warm-side vapor retarder specified for your assembly (if required).


Q: What size and coverage does one unit provide?
A: Each batt is 23 in x 93 in with 3-1/2 in thickness, and the listed coverage area is 89.13 sq ft.


Q: What R-value is this insulation?
A: It is rated R-15.


Q: Is it tested for surface burning characteristics?
A: The description states a Fire Hazard Classification of 25/50 or less when tested in accordance with ASTM E84.


Quiet, cocooned comfort—beautifully built in.

Think of this batt insulation as the invisible layer of luxury—softening sound, smoothing temperature swings, and making every room feel effortlessly composed. The unfaced fiberglass format keeps your build flexible while delivering a snug, resilient fit that reads as comfort you can actually feel. Use it behind statement wall treatments or in bedroom partitions to create that serene, gallery-like hush. It’s the kind of foundational upgrade that makes a space feel richer, calmer, and unmistakably considered.


Upgrade everyday comfort with Knauf R-15 unfaced batts for a warmer, quieter home from the inside out.

Warranty

Installation

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All orders are reviewed before fulfillment. You are not charged until your order is approved and ready to ship — and you may cancel at any time before that at no cost.

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