Roof treatment work of Barrack no. 6, Tango House and Signal Center

Amount

Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer.3 mm thick water proofing membrane Black finished reinforced with glass fibre matt consisting of a coat of a coat of bitumen primer for bitumen membrane @0.40 Litre/sqm by the same membrane manufactured of density at 250C, 0.87-0.89 Kg/litre and viscocity70-160cps. Over the primer coat the layer of membrane shall be laid using butane torch and sealing all joints etc., and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under: - Joint strength in longitudinal and transverse direction at 23 degrees centigrade as 350/300 N/ 5 cm. tear strengtin longitudinal and transverse direction as 60/80N. Softening point of membrane not less than 150 degrees centigrade. Cold flexibility shall be up to -2 degree centigrade when tested in accordance with ASI/M , D- - 5147 . The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane 3 mm thick

Providing corrugated G.S Sheet roofing including vertical/curved surface fixed with polymer coated J or L bolts and nuts 8 mm diameter with bitumen and G.I limpet washers or with G.I limpet washers filled with white lead, including acoat of approved steel primer and two coats of approved paint on overtapping 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 shape wherever required 1.00 mm thick with zinc coating not less than 275 gm/m2

MAHENDRA CONSTRUCTION COMPANY

HONEST ENTERPRISES AND SUPPLIERS

Mohd Arif

ANURAG AND SONS