Details: providing and fixing precoated galvanised iron profilesheets (size, shape and pitch of corrugation as approved by engineer-in-charge) 0.50 mm (+ 0.05 %) total coatedthickness with zinc coating 120 grams per sqm as per is:277, in 240 mpa steel grade, 5-7 microns epoxy primer onboth side of the sheet and polyester top coat 15-18microns. sheet should have protective guard film of 25microns minimum to avoid scratches during transportationand 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. dismantling roofing including ridges, hips, valleys and gutters etc., and stacking the material within 50 metres lead of: asbestos cement sheet structural steel work in single section fixed
Sector: Mining