CertainTeed R38 Unfaced Batts - All Sizes Size:12 in x 16 in x 48 in (Master Pack 4 Bags) Do I need to use

Do I need to use a vapor retarder with FOAMULAR® XPS insulation

Kraft-faced insulation has a paper vapor retarder attached to one side

Fully-charged battery for approx

7'): An unfaced insulation roll designed for use in walls

ensuring a perfect fit for any space

CertainTeed R38 Unfaced Batts - All Sizes Size:12 in x 16 in x 48 in (Master Pack 4 Bags) Do I need to useThese 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 12" x 16" x 48" 42. 67 8 12" x 24" x 48" 64 8 USES To enhance the acoustical and thermal performance of exterior and