bids are invited for repair and overhauling service - institute roof repair; institute roof repair; yes; buyer premises , repair and overhauling service - roof repair type-ii; roof repair type- ii; yes; buyer premises dismantling roofing including ridges, hips, valleys and gutters etc. and stacking the material within 50 metres lead of g.s sheet. providing and corrugated g.s sheet roofing including vertical/curved surface fixed wit polymer coated jor l hooks, bolts and nuts 8 mm diameter with bitumen and g.i limpet washers or with g.i limpet washers filled with white lead, including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to any pitch in horizontal/vertical or curved surfaces), excluding the cost of purlins, rafters and trusses and including cutting to size and shapes wherever required 1.00 mm thick with zinc coating not less than 275 sqm/m² providing and fixing 15 cm overall semicircular plain g.s sheet gutter with iron brackets 40*3 mm size bolts nuts and washers etc. including making necessary connection with rain water pipe complete 0.80 mm thick zinc coating not less than 275sqm/m² total quantity :