REPAIR TO LEAKAGE SEEPAGE ROOF TREATMENT AND CONNECTED B AND R NATURE WKS UNDER GE (EAST) DELHI CANTT

Dismantling of Brick tiles or terracing tiles, single layer on roofs.

S&F for Heat Resistant Terrace Tiles (300 mm x 300 mm x 20 mm) with SRI (solar refractive index) > 78, solar reflection > 0.70 and initial emittance > 0.75 on waterproof and sloped surface of terrace, laid on 20 mm thick cement sand mortar in the ratio of 1:4 (1 cement : 4 coarse sand) and grouting the joints with mix of white cement & marble powder in ratio of 1:1, including rubbing and polishing of the surface upto 3 cuts complete, including providing skirting upto 150 mm height along the parapet walls in the same manner.

M&L cleaning of plastered roof surface and applying one coat of cold bituminous primer @ 0.25 ltrs / sqm conforming to IS 3384-1986, A Layer of APP based polymeric membrane , 3 mm thick ( Minimum) weighing 3.5 kg/sqm reinforced with polyester non woven fabric ( weighing not less than 160 gms/sqm ) shall be applied over bituminous primer as specified above and application of polymeric membrane shall be by torch application, the over lap shall be minimium 100 mm on transverse direction and 75 mm on longitudinal direction and applying one coat aluminium paint over the APP membrane @ 0.11 kg/sqm , complete all as specified and as directed.

Demolition of Mud in roofs, any thickness, including plastering and leeping (whether full thickness removed or only a part thereof).

Cutting out cracks to V-section in existing roofs or terracing surfaces, cleaning out and filling solidly with a hot mixture of bitumen and clean dry sand 1:1 (by weight), complete all as specified and as directed.

Cutting chases, pinning in. making good to facings where required and pointing in cement mortar 1:3 to ends or edges of landings, steps, cills, sunshades, shelves, lintels, etc.; and cutting chases for inserting APP membrane, concealed water tubing or concealed conduit wiring, etc., and making good, cutting not exc 10 cm girth in brick wall.

M&L for providing cement concrete type 1:2:4 type B-0(12.5 mm graded agg ) as in roof kerbs or mud stops, filling of hold fasts and door frames, rounded or chamfered on edges complete all as specified.

M&L PCC 1:3:6 type C2 with 20 mm graded stone aggregate as in padding over roof slab for making slope on roof top surface finished even and smooth complete all as specified and directed.

M&L for 10 mm thick Cement plaster on surfaces of concrete in CM 1:4 on roof surfaces (Over PCC Padding) with WPC (WPC shall be measured and paid separately)

Supply only of liquid water proofing compound complete all as specified and directed.