CertainTeed R21 Unfaced Batts - All Sizes

These 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" 67.81 7 5.5" x 15.25" x 105" 87.5 8 5.5" x 23.25" x 93" 118.83 8 USES To enhance the acoustical and thermal performance of exterior and interior walls. To improve sound transmission loss performance of suspended ceiling systems. PRODUCT BENEFITS Unfaced batts rated non-combustible per ASTM E136. Kraft faced batts suitable for non-exposed applications. Versatile: Enhances the acoustical and thermal performance of interior and exterior walls and suspended ceiling systems. Will not rot or mildew; resists fungal growth. Lightweight, easily fabricated, and installed.