Replacement of Roofing of Primary Section of GSSS Garacharma under CD-I, APWD, Port Blair.

Amount

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 equalavent (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50mm (+0.05%) 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 in both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 mtr or as desired by Engineer-in Charge. The sheet shall be fixed using self drilling/ self tapping aluminium screws (Xylan) of size (5.5x55 mm ) with EPDM seal, complete upto any pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and i/c cutting to size and shape wherever required.

Providing and fixing precoated galvanised steel sheet roofing accessories 0.50 mm (+0.05 %) total coated thickness, 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 screws complete :

Ridges plain (500 - 600mm)

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

Asbestos Cement sheet

Dismantling wood work in frames, trusses, purlins and rafters up to 10 metres span and 5 metres height including stacking the material within 50 metres lead :

Of sectional area 40 square centimetres and above

Providing wood work in frames and fixed in roof, trusses, purlins, rafter, ties etc. as per the direction of E-in-C.

Superior hard wood cat-II (A)

Providing and fixing in position eaves or facia board with 19mm thick Marine Plywood (Green ply or equivalent) conforming to ISi marked and 30cm wide including fixing with bolts and nuts etc. complete.

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade :

Two or more coats on new work

Applying priming coat:

With ready mixed pink or Grey primer of approved brand and manufacture on wood work (hard and soft wood)

M/s V ALAGAR SAMY & SONS (BID ID -47152)

Abdul Gafoor (BID ID -47161)

M K S CONSTRUCTION (BID ID -47209)

J GANESH (BID ID -47146)

M/S TRIPATHI AND BROTHERS (BID ID -47174)

Ashok Kumar (BID ID -47162)

M/s Premier Steel Industries (BID ID -47215)