REPAIRS TO VARIOUS B R SERVICES FOR PERIMETER SECURITY INFRASTRUCTURE LIKE WATCH TOWER GUARD POST GUARD REST ROOM AT EXPLOSIVE AND NON EXPLOSIVE AREA AT NAD UNDER AGE BR II AT NAVAL STATION KARANJA

Complete Removal of existing water proofing treatment any description up to concrete surface of roof slab including cleaning, with wire brushing, watering, removal of debris upto 1500 m distance complete all as specified and directed NOTE :- Unit rate quoted shall also include for removal of PVC water storage tank wherever existing carefully and refixing at the same or other position after completion of roof repair work

Demolition of cement concrete (unreinforced) roof or chajja padding of any description and any position not otherwise specifically provided for complete all as specified and directed.

Material and Lanour for Providing,PCC (1:2:4) type B-0 (using 12.5 mm graded stone aggregate) as in roof/chajja padding for maintaining roof/chajja slope including WPC by weight of total cement as per manufacturers specification all as specified and as directed. Note : WPC will be measured separately

Material and Lanour water proofing treatment of roof consisting as under :- (a) Applying evenly a tack coat of bituminous primer confirming to IS- 3384: 1986 @ 0.30 litre/sqm including preparation of roof surfaces. (b) Applying evenly a tack coat of industrial bitumen 85/25 @ 1.2 kg/sqm on plastered surface all as specified. (c ) A layer of 4mm thick APP Polymeric membrane of weight not less than 4.5 kg/sqm, reinforced with polyster non-woven fabric, duly sealed at over laps & joints with end laps of the 10cm and side over laps of 7.5cm by flame (by torch application) all as per manufacturers instructions, complete all as specified and directed.

Material and Lanour applying two coat bitumen water proofing aluminium heat resistance paint @ 0.10 kg/sqm each coat on the roof as per manufacturers instructions, complete all as specified and directed.

Material and Lanour for rendering 10mm thick cement plaster in CM (1:3) on roof top surface including WPC by weight of total cement as per manufacturers specification complete all as specified and as directed. Note : WPC will be measured separately

Supply only integral water proofing compound

Dismantling plain or corrugated steel sheeting, any gauge , thickness, including Nainital or similar pattern in roof coverings complete all as specified and as directed

Supply and Fix pre-painted galvalume aluminium zinc coating GI based corrugated steel sheet 0.5mm thick of an colour having tenstile strength of 550 Mpa as in roof covering / cladding to wall, fixed with self tapping screws as specified and as directed

Supply and Fix pre-painted galvalume aluminium zinc coating GI based Plain steel sheet 0.5mm thick of an colour having tenstile strength of 550 Mpa as in roof covering / cladding to wall, fixed with self tapping screws as specified and as directed