Replacement of Fabric Sheet of Acoustic Panel at the Back Side of Classrooms in LH-1, LH-3 and LH-4 of Lecture Hall Complex

Providing and fixing the Acoustics Stretch Fabric System over a prepared substrate, utilizing Rainbow Fabric composed of 100% Polyester. The installation shall feature fabric with a weight and width of either 415 grams per linear meter at 140 cm (55") or 350 grams per linear meter at 130 cm (52"), both subject to a +/-2% to 2.4% tolerance. The material must demonstrate high durability with an abrasion resistance exceeding 90,000 cycles on a Martindale Abrasion Tester at 12 KPA pressure and a light fastness rating of 5+ per BS 1006 (1990) standards. All work is to be executed with the understanding that slight color variation between production lots is acceptable within commercial tolerances under the direction of the Engineer-in-Charge.