Vikasbhavan Building Section Urgent Maintenance work for preventing roof leakage at annex building NIC to Geotechnical wing at Public office Thiruvananthapuram

Amount

Civil work

12.50:Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+0.05%), total coated thickness with 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. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling/self tapping screws of size (5.5x55mm) with EPDM seal, complete upto 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.

12.51.1: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: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 (500-600 mm)

OD159400/2024-2025:Preventing roof leakage of GI sheet by the application of m- seal and Sticky bituminous sheet to seal areas around sheet roof screws that have rusted which leads to leakage by mix equal parts of the m seal resin and hardener for until uniform consistency, then apply the mixed M seal over the screws and surroundings of damaged areas over the roofing sheet. After the M seal partially set, fixing the tar sheet tape over the M seal covered portion for making the addition water proofing and protection, including all labour charge and the cost of material etc complete as per directions by Site Engineer in charge.

OD167903/2024-2025:Preventing roof leakage of GI sheet by fixing sticky bituminous sheet to ridge portion of roof without void portion in between, including all labour charge and the cost of material etc complete as per directions by Site Engineer in charge.

OD167027/2024-2025:Providing and fixing 1 mm thick Aluminium Plane sheet (size, shape, etc... as approved by Engineer in charge) on the terrace area with wire nails and washers, to pre-cover the concrete surface etc complete including cutting to size and shape wherever required as per the direction of the Engineer in charge.

OD159401/2024-2025:Blacksmith 1class engaging maintenance and changing fittings of frame work of roof ,grill, doors,windows and gates

SANGEETH (BID ID -1988557)

Bidder Name

SANGEETH

MANJU L S