Details: dismantling gs sheet roofing including ridges, hips, valleys, gutters wind ties etc. includingdismembering and stacking of serviceable materialsand unserviceable materials separately with all lifts and upto a lead of 50 m etc complete as per direction of the engineer- in-charge. supply & installation of pre-painted galvalume sheets for roofing/cladding (size, shape and pitch of corrugation as approved by engineer-in-charge) in 550mpa steel grade, made out of cold rolled steel coated with zinc-aluminium alloy coating of 43.5% zn, 55% al and 1.5% silicon confirming to astm a792/a792m and as1397, alloy coating az150/az70, colour coated with high quality polyester coating, topcoated of modified polyester of 20 micron, back side coat of 5 micron, having epoxy primer coat of 5 micron on both side. sheet should have protective guard film of 25 microns minimum to avoid scratches while transportation and should be supplied in single length upto 12 metre or as desired by engineer-incharge. the s
Sector: Buildings