Interarch Building Products Pvt. Ltd manufactures Suspended Acoustical Ceilings. Interarch Building Products Pvt. Ltd is an ISO 9001:2000 accredited company. The company also manufactures roofing, cladding systems, suspended ceilings, window covering etc. The Suspended Acoustical Ceilings are used for provide sound absorption between one room and another. The Suspended Acoustical Ceilings comprises of perforated panels. These Ceilings have overall sound transmission loss of 10to20 dB.