Common use of Ceiling System Clause in Contracts

Ceiling System. Ceiling systems must conform to fire, acoustics, maintenance and light reflection requirements. Gypsum board ceiling suspension systems shall have 16 gauge, 1 – ½” main channels with 25 gauge 7/8” furring channels. Acoustic panel ceilings shall comply with ASTM E1374 classifications and metal suspension systems with applicable ASTM C635 requirements. Suspend lighting fixtures independent of ceiling. Provide edge moldings, trim and acoustical sealant as required. Exposed face shall be white enamel. Grid spacing shall be 24” x 48”. Lay in panels shall have an NRC range of .55 to .65, STC range of 35-39, LR-1, flame spread of 0-25 (ASTM E84) and nominally 5/8” thick. All lay in panels shall be identical in type and cleanliness. All lay in ceiling panels shall be new. Minimum ceiling height shall be not less than 9’-0” nominal except in small rooms or limited areas, defined as mechanical or janitorial rooms, which may be 8’-0”. Provide unfaced sound attenuation blankets over ceiling systems to meet room to room sound transmission requirements. Provide painted, 5/8” gypsum board ceilings in airlock entry vestibules and for the security room. Provide means of access to ceiling systems for maintenance of equipment or repair of system.

Ceiling System. Ceiling systems must conform to fire, acoustics, maintenance and light reflection requirements. Gypsum board ceiling suspension systems shall have 16 gauge, 1 – ½” main channels with 25 gauge 7/8” furring channels. Acoustic panel ceilings shall comply with ASTM E1374 classifications and metal suspension systems with applicable ASTM C635 requirements. Suspend lighting fixtures independent of ceiling. Provide edge moldings, trim and acoustical sealant as required. Exposed face shall be white enamel. Grid spacing shall be 24” x 48”. Lay in panels shall have an NRC range of .55 to .65, STC range of 35-39, LR-1, flame spread of 0-25 (ASTM E84) and nominally 5/8” thick. All lay in panels shall be identical in type and cleanliness. All lay in ceiling panels shall be new. Minimum ceiling height shall be not less than 9’-0” nominal except in small rooms or limited areas, defined as mechanical or janitorial rooms, which may be 8’-0”. Provide unfaced mineral-fiber sound attenuation blankets over ceiling systems to meet room to room sound transmission requirements. Provide painted, 5/8” gypsum board ceilings in airlock entry vestibules and for the security room. Provide means of access to ceiling systems for maintenance of equipment or repair of system.