REPAIR/ REPLACEMENT TO ROOF TREATMENT, PLASTERING, PERIODICAL SERVICES, ARRESTING OF LEAKAGE/ SEEPAGE, DAMPNESS ETC IN THE AREA OF AGE B/R BHDC UNDER GE (EAST) DELHI CANTT-10

Dismantling of Brick tiles or terracing tiles existing roof treatment of any type , like plastic felt/HP tiles including existing plastering /concrete in covering of any thickness including removal of debris to be disposed out side of MOD premises complete all as specified and directed.

Demolition of mud in roofs any thickness complete all as specified and directed

Demolition of existing treatment like PCC padding Cement Concrete (unreinforced) of any description including APP membrrane/plastering and leeping complete disposal of all debris to out side MOD land all as specifed & directed.

Roughening surfaces of old concrete floor by picking, sweeping clean and washing down with water to remove dust, etc complete all as specified and directed.

M & L for brushing neat cement slurry with 3.0 kg of cement per sqm complete all as specified and directed.

M & L for PCC 1:2:4 type B1 (using 20 mm graded stone aggregates) as in roof padding, roof kerb or mud stop, rounded or chamfered on edge incl necessary form work, complete all as specified and as directed.

M&L for 15 mm thick Screed bed or bedding layer of CM 1:4 mixed with integral water proofing compound as per manufacturere's instructions on roof. (water proofing compound shall be measured and paid seperately) complete all as specified and as directed.

Supply only water proofing compound liquid @ 200 ml / per bag of cement complete all as specified and directed.

M&L for heat reducing water proofing treatment of roof with reinforced elastomeric liquid waterproofing membrane of 400-micron thickness in four layer(100 micron each layer) having SRI of 130, tested as per ASTM E 1980 (with Solar Reflectance and Thermal emittance tested as per ASTM C 1549 and ASTM C 1371 , respectively). The coating should have water absorption less than 1% as per IS: 101 (P-7/Sec-1) 1989, with the ability to resist heat upto 120 degree celcius as per IS: 101 (P-7/Sec-3) 1990 having VOC less than 1.00 g/ltr as per ASTM D 3960 and should have excellent resistance to transmission of ponded water up to 2.5 bars of pressure for 7days. It should also be resistant to Ammonia solution, Sodium nitrate, Sodium hydroxide, along WIth water and soap solution as per IS: 101 (P-7/Sec-2)1990. The waterproofing heat reducing membrane will be laminated with 25 - 40-micron thick transparent Nano modified composite crosslinking polymeric coating with a minimum of 40% solid content as per IS: 101 (P -8/Sec6)1993 and also should pass Impact test as per IS: 101 (P-5/Sec-3) 1988 along with having dust and water repellent & anti-graffiti property passing Scratch hardness test of 500g as per IS: 101 (P-5/Sec-2) 1988. It should also pass Cross Cut Adhesion test as per IS: 101 (P-5/Sec-2) 1988. The Polymeric coating should have a self-cleaning and easy-to-clean property with excellent weather stability and DPR (Dirt pickup ratio). Surface preparation includes cleaning the surface with wire brush and washing cleaning to remove all dust, fungus, etc.The work will be done under the supervision of the Engineer-in-charge.The coating thickness and the methodology of application shall strictly be carried out by the authorised vender/ manufacturers with all specifications and as approved by the Engineer-incharge. The manufacturer / authorised vender shall give a warranty for the peformance& durability for 7years. Make : Starshield/ Asian/ STP.

Removing debris retrived from demolished materials / old waste unwanted existing material of any description or any type etc on alternate day to a distance 5 km or beyond out side MOD land complete all as specified and as directed.