Owens Corning R-13 Kraft Faced Fiberglass Roll Insulation 40-sq ft (15-in W x 32-ft L) Individual Pack in the Roll Insulation department at Lowes.com
R-13 (16 psi) Johns Manville® Foil-Faced Polyiso Foam Board Insulation 2" x 4' x 8' at Menards®
Owens Corning R- 13 Single Faced Fiberglass Roll Insulation 40-sq ft (15-in W x 32-ft L) Individual Pack in the Roll Insulation department at Lowes.com
Owens Corning R-13 Kraft Faced Fiberglass Insulation Fiberglass Insulation Batt 15 in. x 93 in. (10-Bags) BF10 - The Home Depot
R13 Insulation | All You Need to Know | Havelock Wool