CertainTeed R21 Unfaced Batts - All Sizes Size:5.5 in x 15.25 in x 93 in (Master Pack 4 Bags) no defacement Service Temperatures 250°F

no defacement Service Temperatures         250°F max

500 BTU Window Air Conditioner

Will not corrode

Can this insulation be used on the interior surfaces of basement and unvented crawl space foundation walls

CertainTeed R21 Unfaced Batts - All Sizes Size:5.5 in x 15.25 in x 93 in (Master Pack 4 Bags) no defacement Service Temperatures 250°FThese Unfaced, light density fiberglass batts are used in steel stud construction. The batts are designed for friction fit installation. Unfaced or kraft faced ceiling batts are designed to lay directly on suspended ceiling systems. Faced batts have no tabs. When installed they must be butted together. Size Sq Ft Per Bag Batts Per Bag 5. 5" x 15. 25" x 93" 78 7 5. 5" x 15. 25" x 105" 89 8 5. 5" x 23. 25" x 93" 120 8 USES To enhance the acoustical and