Light-density fiberglass batts with a kraft, foil, or a foil scrim kraft (FSK) fire-resistant vapor retarder facing. Size Sq/Ft Per Bag Batts Per Bag 6.25" x 11" x 93" 113.66 16 6.25" x 15" x 93" 87.19 9 6.25" x 15.25" x 93" 88 9 6.25" x 15.25" x 94" 89.5 5 6.25" x 15" x 94" 88.13 9 6.25" x 15" x 105" 98 9 6.25" x 16" x 48" 96 16 6.25" x 16" x 96" 96 9 6.25" x 19.25" x 48" 115.5 18 6.25" x 23" x 93" 133.68 9 6.25" x 23" x 94" 135.13 9 6.25" x 24" x 48" 144 16 6.25" x 24" x 96" 144 9 USES To improve the thermal performance of exterior and interior walls and floor/ceiling assemblies. Kraft: non-exposed steel stud construction. Foil: non-exposed wood and steel stud construction. FSK-25: where a Fire Hazard Classification of 25/50 is required. PRODUCT BENEFITS Excellent thermal performance. Will not rot or mildew resists fungal growth. Lightweight easily fabricated and installed. FSK-25 only: UL listed flame spread rating of 25 for exposed applications. Low perm rating.