Johns Manville R-19 Unfaced Fiberglass Roll Insulation, 48.96-sq ft Coverage (15-in W x 39.16-ft L) – Multi-Pack, B373S

Johns Manville R-19 Unfaced Fiberglass Roll Insulation, 48.96-sq ft Coverage (15-in W x 39.16-ft L) – Multi-Pack, B373SR 19 Unfaced Fiberglass Roll Insulation, 15 in x 39. 16 ft Improve thermal performance and sound control with Johns Manville R 19 unfaced fiberglass roll insulation. Sized for 2x6 wood stud walls and long runs with 16 in on center spacing, each roll covers 48. 96 sq ft and installs easily by pressing in place. Key Features: Energy Efficiency + Sound Control: R 19 fiberglass helps reduce heat loss and unwanted noise in walls and floors Sized for 2x6