supply and fixing of metallic colour sheets supply and fixing of metallic colour sheets , providing and fixing of metallic colour sheet , dismantling of all existing old acc sheets/ (cgi sheets, if any) from the boiler & boiling house roofsand stacking these dismantling sheets as per direction of mills management. , supply trapezoidal/corrugated sheeting system in gal valume in colour coating sheet having covered width of 1000 mm (total width=1060 mm)35 mm crest at pitch of 250 mm stiffened with 8 mm deep intermittent corrugation sheet be made from base metal having 0.50 mm thickness in steel of grade 345 as per astma792 coated with alloy mass 150 gm total both side with colour coating having complete dip treatment process with chromat conversion (cr+3) as main treatment followed by pv primer 5 micron on each surface 20 micron dft on exposed surface.(sheets shall be supported with manufacturer’s certificate and coating thickness 0.5 mm) .overlapping and wastage of sheets will not be paid separately.so rates must be quoted accordingly. , fixing of above sheets with necessary self-drilling , supply of ridge/eaves/hips of same material as item no. 01 having total width of 1060 mm crimped curve type /pressed with same profile. the net length is given .overlapping of ridge profile has no bearing on the quoted rates. , fixing of ridge/eaves/hips with all necessary joining material inclusive cost of bolts, nuts, washers, sealing material, cutting hole making drop and funnel etc.