tender for taking out old damaged tarfelt from the roof, parapet etc. preparing the roof surfaces by removing all spoils, blisters, moss etc. from the working site and disposal of the same beyond the compound and cleaning the site in all respect as per direction of engineer-in-charge. , dismantling all types of plain cement concrete works, stacking serviceable materials at site and removing rubbish as directed within a lead of 75m. in ground floor including roof. (a) upto 150 mm. thick , ordinary cement concrete (mix 1:1.5:3) with graded stone chips (20 mm nominal size) excluding shuttering and reinforcement if any, in ground floor as per relevant is codes. (i) pakur variety , a) applying 2 coats of bonding agent with synthetic multi functional rubber emulsion having adhesive and water proofing properties by mixing with water in proportion (1 bonding agent : 4 water : 6 cement) as per manufacturers specification [cement to be supplied by the department] , roof treatment by application of non toxic polyurethane modified acrylic based single component (p u roof coat) solvent free, cold applied polyurethane modified elastomeric waterproofing membrane with excellent uv resistant capacity as per astm d6083 [a water based 100%acrylic elastomeric emulsion polymer latex coating used as protective coating for roofs] after preparing the surface by cleaning and repairing the roof cracks by cement & sand mortar (1:4), preferably with antishrinkage mortar (to be paid separately) if any, apply two coats along with a priming coat(two coats of p u roof coat and one coat of primer coat compatible with main product as per manufacturers specification) and reinforced with or without 20 gsm geotextile fleece, including the cost of primer coat and base preparation, tools & plants but excluding the cost of scaffolding and stagging complete as per direction of engineer -in-charge. (note: if geotextile fleece not uesd, the rate would be reduced by rs. 5/-per sqm) , removal of rubbish,earth etc. from the working site and disposal of the same beyond the compound, in conformity with the municipal / corporation rules for such disposal, loading into truck and cleaning the site in all respect as per direction of engineer in charge. a) in ground floor including roof. , gst @ 18%(cgst 9% + sgst 9%) of above , labour welfare cess@1%