High-performance fiberglass insulation for superior thermal efficiency.

The R21 Kraft-Faced Insulation from Owens Corning delivers enhanced thermal resistance for residential and commercial wall and ceiling applications. Each roll measures 15" x 93" and covers 67.81 sq ft, making it ideal for projects requiring higher R-values without sacrificing ease of installation. Trusted by NYC contractors for consistent quality and performance.

Product Specifications

• R-Value: R21

• Facing: Kraft paper (vapor retarder)

• Dimensions: 15" x 93"

• Coverage: 67.81 sq ft per roll

• Material: Fiberglass insulation

• Type: Wall and ceiling insulation (interior use)

Common Uses

• Exterior and interior wall insulation

• High-efficiency residential builds

• Commercial wall assemblies

• Ceiling insulation applications

• Sound control between rooms

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