Municipal Administration And Water Supply Department Tender

Supplying, fabricating, erecting and fixing of Gyp Board false ceiling using 10 mm thick plain sheets upto a ceiling height of 4.5m from floor level etc., complete complying with standard specification.

Providing and fixing Acoustic Wall Panelling (equivalent to Armstrong) in channelled woodworks per for ated panels of width 192mm, thickness of 15mm and length of 2400mm or as per required by the Departmental Engineer made of a high density fibre board with minimum 725kg./m3 density substrate with alaminated facing as per the approved shade and finish and amelamine balancing layer on the reverse side. The boards shall have a special per foration pattern where the visible surface has a "Helmholtz" fluted per foration of 3mm width and 21mm of visible panel each. The edges of the panels shall be "tongue and-grooved" to receives pecialclips for installation. The back of the perforated panel shall have sound absorbing on woven acoustical fleese having NRC of 0.52. The panels shall be mounted on special aluminium splines using clips provided by Armstrong and approved by the Engineer-in-Charge. Installation: Install aluminium box section (provided by others) of section 50mmx25mm or as approved by the Engineer-in-Charge on the solid wall horizontally using screws and plugs at spacing of 600 mm centre to centre. Screw the aluminium extruded keel for channelled woodworks provided by Armstrong over the lowest and second aluminium section at anon centre distance of 600mm. Place the inside clip on the groove end of the panel along the aluminium keel and then place the tongue end of the next panel. Continue installing grows of panels by inserting the tongue into groove of the earlier inserted panel and progressively installing inside clips into the next keel till the actual height is achieved. Finish off the edges using wooden moulding of matching colour (provided by others).Installation to be carried out by Armstrong Trained Installation Team and installation should be carried out as per Armstrong Recommended Procedure.

Removing the existing Wall Panelling etc., complete complying with standard specification.