Details: supplying, fitting & fixing zn-al alloy (55% al & 45% zn) coating of 150 grams per sq. metre (followed by colour coated on both side) steel sheet work having minimum yield strength of 550 mpa of trapizoidal profile of approved make (excluding the supporting frame work) fitted and fixed with 55 mm & 25 mm self tapping , epdm washer 16 mm dia & 3 mm th. washer etc. complete with 150 mm end lap and one corrugation minimum side lap. (payment to be made on area of finished work). (i) in roof:- a) with 0.5 mm thick sheet aluminium sheet ridging fitted with self tapping screws, epdm washers etc complete.(minimum 225mm end lapping).(a) 300 mm lapping each way (a) with 0.71 mm sheet m.s. structural works with hollow sections (square or rectangular shape) conforming to is: 806-1968 & is:1161-1998) connected to one another with bracket, gusset, cleat as per design, drawing & direction of engineer-in-charge complete including cutting to requisite shape & size, fabrication including metal arc weld
Sector: Agri Marketing