Rectification of roofing leakage and renovation of toilet of Govt. Primary School Tugapur No-7 under Sub-Division No-II, NACD, APWD, Mayabunder

Amount

Painting with black anti-corrosive bitumastic paint of approved brand and manufacture to give an even shade :

Two or more coats on new work

Dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of:

Asbestos Cement sheet

Dismantling eaves or facia board etc complete including disposal of materials within 50 metres lead as per the direction of Engineer-in-charge.

Providing and fixing in position eaves or facia board with 18mm thick WPC board of approved quality and 30cm wide including fixing with nuts and bolts etc. complete as per the direction of Engineer-in-charge.

Providing and fixing pre-painted galvalume (PPGL) steel profile sheets AZ-150 of brand Tata Bluescope steel, Everest Industries Ltd., JSW Steel Ltd., Jindal India Ltd. or equivalent (size, shape and pitch of corrugation as approved by Engineer-In- charge) 0.50mm (+0.50%) total coated thickness with aluminium zinc coating 150 grams per sqm as per IS:277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns, sheet should have protective guard film of 25 micron minium to avoid scratches during transportation and should be supplied in single length up to 12 metres or as desired by Engineer-In-Charge. The sheet shall be fixed using self drilling/ self tapping aluminium screws (Xylan) of size (5.5X55mm) with EPDM seal, complete up to any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required.

Providing and fixing pre-painted galvalume (PPGL) steel profile sheets AZ-150 of brand Tata Bluescope steel, Everest Industries Ltd., JSW Steel Ltd., Jindal India Ltd. or equivalent roofing acessories 0.50mm (+0.50%) total coated thickness with aluminium zinc coating 120 grams per sqm as per IS:277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns using self drilling/ self tapping aluminium screws complete.

Ridge plain(500-600 mm)

Removing enamel paint, aluminium paints from pipes, hand railing or grills etc by scrapping, sand papering , cleaning and preparing the surface smooth etc complete as per the direction of Engineer-In-Charge.

Rajesh Halder