Johns Manville Foil Faced Polyiso Foam Board Insulation 2" x 4' x 8' R-13

Johns Manville AP™ Foil-Faced Foam Sheathing Board is rigid polyisocyanurate foam sheathing that provides exceptional heat, moisture, and air control to protect your building's exterior walls, and when installed correctly, eliminates all major thermal bridges that cause heat loss. Continuous exterior sheathing required per building codes in many states.