tender supply / fixing colour coated galvalume sheets on roof of boiling house / pan house, mill and boiler house tender supply / fixing colour coated galvalume sheets on roof of boiling house / pan house, mill and boiler house , supply trapezoidal / corrugated sheeting system in galvalume in clour coating steel having cover width of 1060 mm, ( 35 mm crest at a pitch of 250 mm ) or ( 32mm crest at a pitch of 200 mm ) stiffened with 8 mm deep intermittent corrugations sheet bemade from base metal having 0.60 mm thickness in steel of grade 345 as per astm a 792 m, coated withalloy of al.and zn.to gradebaz 150 min. alloy mass 150 gms total both sides ) with colour coating having complete dip tank pre- treatment process with chromat conversion ( cr+ 3 ) as main pre treatment followed by pu primer of min. 5 micron dfton each surface, finished with special polyester paint to grade -20 of min.20 micron dft on exposed surface and 5 micron in gray shade on unexposed surface. , fixing of above sheets with necessary self drilling and self trapping screws / bolts and nuts. epdm washers with 150 mm laps wherever required. the rates shall include cost of laps, fixers like s.d. / self trapping screws with epdm washers incl. stitching as required in complete line and level, incl. lifting to all height as required , supply of ridgs / gutter of same material as item no.1, having total grith of 1060 mm crimped curve type / pressedwith same profile. , fixing of ( above said item as per item no.2 ) ridges / gutters with all necessary jointing material incl. cost of bolts, nuts , washers, sealing material, cutting hoes, making drop end funnels etc , supply of 2 mm poly carbonate sheets of matching profile ( for lighting purpose. , fixing of ( above said ) poly carbonate sheets incl.cost of jointing material, bolts, nuts , washerssealingmaterial etc. , supply of corner fleshing 600mm wide of same material as item no-1 of matching profile , fixing of corner fleshing 600mm wide including cost of jointing material