West Bengal Housing Infrastructure Development Corporation Limited Tender

Providing and Mining of false ceiling with powder coated exposed G.I. grid suspension system (E-Grid U-1520 or equivalent load carrying capacity with mid span affection not exceeding 1/360 span with hanger spacing of l200mm c/c )consisting of Main Runner 3600 mm long, Cross Tee 1200 mm / 600 mm long and Wall Angle. The Wall Angle shall be fixed on PVC Dash Fasteners on theperimeter of the 'all by steel screws with distance 300mm c/c. The Main Runners to be placed A 1200 mm. The Cross Tee l200mm will be inserted in the pre-cutslots of lvfain Runner at a regular interval of 600 mm to form a modular grid of l200mm X 600mm. Additional Cross Tees of 600 mm shall be placed perpendicular to the Cross Tee 1200 mm long to finally form a grid of 600 mm X 600 mm. Grid of module size 600 mm X 600 mm shall be supported by 6 mm dia G.I. wire from purlins / soffit. 15mm thick OW Acoustic Board (Mineral Fiber Acoustic Ceiling Tiles) of approved patern and size 595mm X 595mm with ARC value 0.65 should be placed in the Grid module to form a False Ceiling. All complete as per the drawing & directions of Engineer-in-charge.In ground floor. a) Acoustic False Ceiling (with l5rnm thick OW Acoustic Board and E-Grid U- 1520). (Armstrong make frame, grid and board )

Taking out carefully G.C.I. or C.I. or asbestos sheets (including ridges etc.) from roof or wall after unscrewing bolts, nuts, screws etc.and stacking the material at site as directed (Payment to be made on measurement of portion of root or watt removecL)

Priming one coat on timber or plastered surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.