GAIL India Limited Tender

Providing & laying in position approved quality profiled, pre-coated, steel sheets ( for roofing, cladding etc. ) made from cold rolled high tensile Zincalume/ Galvalume steel of 550 MPA yield stress conforming IS:513, IS:14246 and ASTM AS:1397: the substrate shall be hot dip metallic coating of aluminium zinc alloy ( 150 grams per sqm total on both side coating class AZ150 ): the bottom unexposed surface shall be provided with alkyd backer of minimum 7 microns: top exposed surface shall have SMP(Silicon Modified Polyester) paint system minimum 20 microns in approved shade applied over 5 micron primer: overall coated thickness of sheet not less than 0.5 mm, profile depth not less than 28 mm and pitch not more than 190 mm: including cutting, mitering, laps, providing cut outs for fixing accessories, necessary fasteners (approved quality anti corrosive polyester polymer coated, rivets, nuts, bolts, self-drilling screw/ fastener with integral washer & EPDM seals, and nylon colour caps and natural cure type joint sealants etc.) ALL complete as per approved manufacturer's specification & as per directions of EIC

Providing & laying in position roofing cladding accessories ridge piece, corner piece, north light curve piece, apron piece, gutter, flashing etc. fabricated out of 0.5 mm precoated Zincalume/ Galvalume steel sheets of same material/ quality etc. as that of sheeting: bent and profiled to match with the roofing and cladding, including all cutting, fabrication, riveting, fasteners etc. all complete as per directions of EIC

Manufacturing, supplying and fixing retro reflective overhead signage boards made up of 2 mm thick aluminium sheet, face to be fully covered with high intensity and encapsulated lens type heat activated retro reflective sheeting conforming to type - III of ASTM-D-4956-01 as approved by Engineer-incharge, letters, borders etc. as per IRC : 67-2001 in silver white with blue colour back ground and with high intensity grade, pasted on substrate by pressure sensitive adhesive backing which shall be activated by applying pressure conforming to class II of ASTM-D-4956-01 and fixing the aluminium sheet to be to M.S. frame of angle iron of size 50x50x4 mm rivets or bolts & nuts @ 300 mm centre to centre all along the periphery as well as in two vertical rows, including the cost of painting with two or more coats of epoxy paint in grey colour on the back side of aluminium sheet including appropriate priming coat or fixed on the stainless steel structure all along the perphery . The rate includes the cost of rounding off the corners, lowering down the structural frame work from the gantry, fixing and erecting the same in position all complete as per drawings, specification and direction of the engineer-in-charge.