Johns Manville R-30 Unfaced Fiberglass Batt Attic Insulation, 58.66-sq ft Coverage (16-in W x 48-in L) Ryobi the synthetic rubber is waterproof

the synthetic rubber is waterproof and suitable for outdoor walkways and damp environments

works well in pulleys

Weighs 117 lbs

whisper-quiet airflow for summer and winter comfort

Dual-Sided Use: Patented design can be flipped to create checkerboard patterns

Johns Manville R-30 Unfaced Fiberglass Batt Attic Insulation, 58.66-sq ft Coverage (16-in W x 48-in L) Ryobi the synthetic rubber is waterproofR 30 Unfaced Fiberglass Batt Attic Insulation Formaldehyde free fiberglass batts designed for attics deliver R 30 thermal performance with sound control. Precut to fit 16 in on center wood stud cavities, each bag covers 58. 66 sq ft for efficient energy upgrades. Key Features: High R Value Performance: R 30 thermal insulation helps reduce energy costs and improve comfort Unfaced Design: No vapor barrierideal for adding over existing insulation layers