tender for special repair to bldg no. p-84 at zone-8 at solmara cantt under ge (n) tezpur- 1 taking down chowkats and shutters (without taking off shutters from the frame) n.exc 1.5 sqm each, complete in all respect as specified and directed. 2 taking down chowkats and shutters (without taking off shutters from the frame) exc 1.5 sqm but not exc 4sqm each complete in all respect as specified and directed. 3 s&f coloured 0.50 mm thick pre-painted galvalume aluminium zinc coating gi based trapezoid profile steel sheet having tensile strenght of 550 mpa as in roof covering/ cladding to wall, fixed with self tapping screws with bitumen washer to truss members of any material, including taking down existing surface complete all as specified and directed. 4 s&f coloured 0.50 mm thick pre-painted galvalume aluminium zinc coating gi based trapezoid profile steel sheet having tensile strenght of 550 mpa as in ridge, valley gutter or of similar type, fixed with self tapping screws with bitumen washer to truss members of any material, including taking down existing surface complete all as specified and directed. (the measurement shall be carried out as in a plain sheet).