Sound Quality® Ceiling Clouds are perfect for the reduction of sound in ceiling areas. They are suspended horizontally with eye hooks (for panels up to 4' x 4') or T-grid attachment. The T-grid may be attached in the field or at the factory before shipment for your convenience. Ceiling Clouds are available in 1/2", 1", 1 1/2", or 2" thickness with maximum sizes up to 4' x 10'. Substrate * 6-7# PCF rigid fiberglass core Finishes * Guilford of Maine FR701 Style 2100 is standard * Designer and customer specified fabrics are available Acoustical NRC Range * 1/2" ............0.50-0.60 * 1" ...............0.80-0.90 * 1 1/2"...........0.90-1.00 * 2" ...............1.05-1.15 Edge Detail # Square # Bevel # Radius # Miter Fire Rating # All components shall have a Class A fire rating per ASTM E-84