REPAIRS TO VALLEY GUTTER/ ROOF SHEET AND ALLIED WORKS TO SINHAGAD ENCLAVE IN THE AREA OF AGE BRII OF GE BRICHGUNJ, PORT BLAIR.

Amount

Dismantling and refixing for plain or corrugated roof sheeting of any description, any gauge, thickness,including removing and refixing of L-type or J-type bolts and screws in Roof Covering, complete all as specified and directed

Dismantling of plain or corrugated roof sheeting of any description, any gauge, thickness,including Nainital or similar pattern and removing of L-type or J-type bolts in Roof Covering complete all as specified and directed

Supply and fix Pre-painted galvalume aluminium zinc coating GI based (corrugated/semi corrugated) sheet 0.50mm thick as per approved profile, coloured, having tensile strength of 550Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed.

Supply and fix Pre-painted galvalume aluminium zinc coating GI based plain steel sheet 0.50mm of an colour having tensile strength of 550Mpa as in roof covering/cladding to wall, fixed with self tapping screws complete all as specified and directed.

Supply and fix in repair aluminium plain steel sheet 0.71mm as in in ridges, hips, valley gutter, drip and straight flashing, roof covering/cladding to wall, fixed with self tapping screws and overlaping should be sealed with M Seal, complete all as specified and directed.

M&L for removing loose and broken concrete by chiselling /picking etc upto a depth of 10 to 30 mm from floor/roof slab/chajjas and similar structural members cleaning the dismantled portion with wire brushes etc to remove dust, dirt and other foreign particles including necessary scaffolding etc and removal of debris to a distance not exceeding 50m, complete all as specificed and as per directed.

M&L for application of high build polymer cement sand mortar 1:3 with water cement ratio 0.35 to 0.45 mixing with Nito bond SBR @ 5 ltrs per 50 Kg cement on ceiling / chajja surfaces 10 to 30mm thick in two layers over slurry priming coat of 1 volume Nito bond SBR to 1 volume water, 3 volume fresh cement etc all as per manufacturers instructions, including painting/finishing over a coat of interior/exterior grade wall care putty to match with the existing complete all as specified and as directed.

Demolition of concrete of any description and in any position not otherwise specifically provided, complete all as specified and as directed.

M&L Plain Cement Concrete Type B1 1:2:4 (using 20 mm graded stone aggregate) in roof kerbs, mud stops or chamfered on edges.

Disconnecting of existing tank of capacity 500 ltr and setting aside or lowering if required for repairs cleaning etc and refixing in position hoisting and connecting , complete all as specified and as directed.

Disconnecting of existing tank of capacity 1000 ltr and setting aside or lowering if required for repairs cleaning etc and refixing in position hoisting and connecting , complete all as specified and as directed.

Material and Labour for application of Brushbond Roofguard in three coats (0.5 liter/Sqm/coat) on old or new roofs to achieve total dry film thickness of more than 1mm over a coat of Nitoproof WB primer (8-10sqm/Ltr) as per manufacturer instruction and complete all as specified and as directed by Engineer-in-Charge Note : Overcoating time will be 8-12 hours at 27 degree celsius

M & L for water proofing treatment with the following specifications including taking down existing roof treatment of any description and cleaning with water and scrubbing and disposing off the rubbish outside the premises, complete all as specified and as per manufacturers instructions:- (i) Apply a coat of hot blown bitumen 85/25 @ 1.20 kg/sqm over a coat of bituminous primer @ 0.3 ltr per sqm. (ii) Laying APP membrane weighing not less than 3.5 Kg/sqm, reinforced with polyster non woven fabric (weighing not less than 150 gms/sqm) with 100mm over laps both longitudinally and transversally and overlaps shall be sealed by torch, membrane shall be taken to the parapet through fillet and shall be tucked in inside after a height of 300 mm. (iii) Apply one coat of hot blown bitumen 85/25 @ 1.2 kg/sqm over the membrane.

Supply and applying two coats of High build hydrophobic polyurethane waterproofing coating on RCC slab/ Masonry wall applied of spray applied coating with GRACO EH 675DI having elongation of 550% and tensile strength of 4.5 N/mm2 as per ASTM D 412, no leakage upto 5 bars of water pressure as pet DIN 1048, shore A Hardness of min. 75 as per ASTM D 2240. The system includes base preparation with one coat of epoxy primer resin and epoxy primer hardner. Apply Smartcare PU Magnum or approved equivalent in two coats to achieve an average thickness of 1.0mm to 1.2mm thickness complete as per Manufacturer specifications. Note :- Videography of each site before, during execution of each coat and completion of work application shall be submitted to Engineer - in- Charge.

ANITA VARMA ENTERPRISES (BID ID -3096703)

SKV Engineering (BID ID -3096728)

M/s Kamal Electrical (BID ID -3096769)

DEEPAK AGENCIES (BID ID -3097596)

Reliance Sales Agency (BID ID -3096278)

M/s Prem Enterprise (BID ID -3096798)

M/s Ramesh Lal (BID ID -3096759)