Providing of 4mm thick APP Superthermoly STP sheet water proofing over CGI sheet roofing of main PCR building at Srinagar (Z3C Lab portion) under Account Head Minor Civil and Electrical works in Demand 51 Police

Providing and fixing of 4mm thickness APP (Atactic Poly Propylene Polymer ) Superthermoly STP sheet polyester based sheet black finishing including 2 coats of silver paint with hot torech treatment over RCC/cemented/CGI Sheet roofing surface by following method (I) Applying with shalitex STP primer for bitumen membrane @ 0.40 ltr/sq. mt. (II) Mt. by the 4mm thickness APP superthermoly STP black sheets polyester based sheet black finishing manufacture of density at @ 25*C, 0.87-0.82 kg/liter over primer coated layer shall be laid using butane torch and scaling all the joints longitudinal as well as transverse prepare the surface complete (III) Cut 1" deep groove above the roof surface on the on the parapet wall and seal edge of APP superthermoly STP polyester sheet into the. groove with polymer modified mortar (IV) in case of low height parapets, terminate APP superthormoly STP polyester sheets pver the parapet (V) for over lapping of joints, rub the polythylene side of membrane by wire brush, apply shali bond APP over the ribbed area, alow it to the tackly and then fix the bitumenious side of APP superthermoly STP sheet polyester with hot application (VI) for longitudinal and tranverse joint pverlaps of 75mm and 100mm respectively is desired. The vital physical and chemical paramater of the membrane shall be as under:- Softening point of membrane not less them 150*c cold flexiblity shall be upto 0"c when tested in accordance with ASTM, joint strengh in longitudunal and transverse direction at 23*c as 350/300N/5cm. Tear strenght in longitudinal and transverse direction as 60/80N in 4mm thick, the weight of roll (40KG for 1 mtr bt 10 mtrs) the laying of membrane shall be got done through the certified applicator.

Engagement of labour skilled/ unskilled for various dismantling works like cleaning of CGI Roofing etc. including stacking of serviceable material as directed by EIC and disposal of unserviceable material up to 50 mtr lead.

Labour