Johns Manville (JM) R-38 Unfaced Fiberglass Batt Insulation, 16 in x 48 in, 42.66 sq ft Bathroom Wall Surround Perfect for intricate mechanical tasks

Perfect for intricate mechanical tasks

It uses Scotts exclusive particle technology to get the weeds you see and the ones you don't

making it highly resistant to water damage

Q: Can I use this to expand an existing drip system

and easy-to-clean white finish

Johns Manville (JM) R-38 Unfaced Fiberglass Batt Insulation, 16 in x 48 in, 42.66 sq ft Bathroom Wall Surround Perfect for intricate mechanical tasksR 38 Unfaced Fiberglass Batt Insulation (16 in x 48 in) JM (Johns Manville) R 38 unfaced fiberglass batts are pre cut for 16 in on center wood framing to help improve thermal performance and add sound control in attics, ceilings, and floors. Unfaced construction has no vapor barrier, making it suitable for adding over existing insulation where permitted. Key Features: High R Value Performance: R 38 fiberglass batts help reduce heat transfer for