REPAIRS/ REPLACEMENT OF TURBO VENTILATORS AND LEAKY ROOF SHEETS IN RG-II AND III SHOP AT NEW FACILITY, HVF, AVADI

M & L for polycarbonate sheet 2mm thick as in roof covering/cladding to wall fixed with self drilling / self tapping anti corrosive screws with EPDM seal complete all as per manufacturers specifications and instructions and as approved and as directed, by considering the dimension & height including all necessary scaffolding and safety aspects complete. The height of work exceeding 10 metres from the average ground level.

Supply and fixing of aluminium zinc coated sheet of trapezoidal profile sheet provided with PUF panels with 50mm thick puff sandwitched between top and bottom 0.50 TCT colour coated corrugated sheets with minimum yield strength 500N/Sqm.

Labour charge for dismantling existing poly carbonate sheets and Turbo ventilator with FRP moulds etc., working at the height more than 10m including all necessary scaffolding and safety aspects complete and handing over the same to CE Stores.

Providing and fixing precoated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-Charge) of total coated thickness 0.50 mm (base metal of minimum 0.45 mm thickness with total coating thickness of 0.05mm) 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 (5.5x 55 mm) 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.

M & L for applying MS polymer (modified selaine) based sealant / adhesive for application at leak joints of valley gutters, bolt holes, down take pipes (6mm depth and 10mm width) and as directed by considering the dimension and height above 10.00 metres approx. including all safety aspects and scaffolding complete as required at site.(Make:McKoy/soudal/ stanvac or suitably equivalent make)

Supply and fixing of ROLL FLEXIBLE SEALING WATERPROOFING TAPE - SBS Self Adhesive Waterproof Roll with aluminium top application at leak joints of valley gutters, bolt holes, down take pipes, joints of roofing sheets and junction points of structural members etc (6mm depth and 10mm width) of girth 50mm including completely removing old treatment as directed working at the height more than 10.00 metres including all safety aspects and scaffolding complete as required at site. (Make : STP/Bostik/BASF) or suitably equivalent make)

Supply and fixing of ROLL FLEXIBLE SEALING WATERPROOFING TAPE - SBS Self Adhesive Waterproof Roll with aluminium top at leak joints of valley gutters, bolt holes, down take pipes, joints of roofing sheets and junction points of structural members etc (6mm depth and 10mm width) of dimension 50mm X 50mm including completely removing old treatment as directed working at the height more than 10.00 metres including all safety aspects and scaffolding complete as required at site. (Make : STP/Bostik/BASF) or suitably equivalent make)

Supply and fixing of ROLL FLEXIBLE SEALING WATERPROOFING TAPE - SBS Self Adhesive Waterproof Roll with aluminium top at leak joints of valley gutters, bolt holes, down take pipes, joints of roofing sheets and junction points of structural members etc (6mm depth and 10mm width) of dimension 150mm X 150mm including completely removing old treatment as directed working at the height more than 10.00 metres including all safety aspects and scaffolding complete as required at site .(Make : STP/Bostik/BASF) or suitably equivalent make)

Dismantling of existing ridge ventilator (throat size 600mm) and 3m long and reinstallation on same position after fixing of roofing sheet including necessary neoprene rubber where required.

Dismantling of existing Turbo ventilator ( size 525mm dia) including FRP moulding size 1.51mX1.05m etc complete