R-25 Unfaced Fiberglass Batt Insulation (24″ x 48″, 128 sq-ft)

Knauf R-25 unfaced fiberglass batt insulation is designed for wood or metal framed construction in new or existing buildings. It delivers strong thermal and acoustical performance, is easy to cut and install, and rebounds quickly for a snug fit.

Key Features:

High Thermal & Sound Performance: Helps maintain indoor temperatures while absorbing excess noise for more comfortable rooms
Fast, Clean Installation: Cuts easily, resists tears, and installs quickly with low dust
Snug Fit Recovery: Resilient batt rebounds quickly to full thickness to help reduce gaps
Unfaced Flexibility: Allows the specifier/installer to choose the warm-side vapor retarder approach when required
Staple-Free Handling: Designed for easier placement without stapling

Specifications Table:

Specification	Details
Brand	Knauf
Series	Pro Cut Series
Sub-brand	Performance+
Insulation Type	Fiberglass batt insulation
Facing Type	Unfaced
R-Value	R-25
Width	24 in
Length	48 in
Thickness	8 in
Coverage Area	128 sq-ft
Color	Brown
Installation Locations	Attic; Basement; Ceiling; Crawlspace; Floor; Wall
Resists	Tear
Installation Detail	Staple-Free
Temperature Rating	400 F
Fire Test	ASTM E84
Fire Hazard Classification	25/50 or less
Application/Use	For wood or metal framed construction in new or existing structures; also suitable for sound control in partition walls and as a lay-in over acoustical ceiling panels
Vapor Retarder Note	Specifier/installer may select warm-side vapor retarder options such as foil-backed gypsum board or polyethylene film (as applicable)

Frequently Asked Questions (FAQ):

Q: What spaces can this batt insulation be used in?
A: Its listed for attic, basement, ceiling, crawlspace, floor, and wall applications in wood or metal framed construction.

Q: Is this insulation faced or unfaced?
A: It is unfaced fiberglass batt insulation.

Q: What size and coverage does one unit provide?
A: Each batt is 24 in x 48 in, and the listed coverage area is 128 sq-ft.

Q: How thick is the R-25 batt?
A: The listed thickness is 8 inches.

Q: Does it have a fire test classification?
A: When tested to ASTM E84, its listed with a Fire Hazard Classification of 25/50 or less.

Quiet Luxury, Built Into the Bones of Your Space

True luxury starts with comfort you can feeland silence you can hear. This R-25 unfaced fiberglass batt brings a beautifully understated performance: it cushions a room with warmth, softens sound, and rebounds to a fuller, more tailored fit within the cavity. Use it behind refined wall finishes and serene bedroom suites where calm is the ultimate design feature. Its the invisible layer that makes a space feel intentional, elevated, and impeccably livable.

Choose this R-25 unfaced fiberglass batt to add dependable comfort and sound control to your next framed wall, floor, or attic project.

Warranty

Installation

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