8126/SAR-T-38/2026-27REPAIR TO ROOF SLAB, CHAJJA, EFFLORESCENCE, FALSE CEILING AND ROOF TREATMENT OF CERTAIN BLDGS IN DOMESTIC AND TECHNICAL AREA AT AF STN SARSAWA UNDER GE (AF) SARSAWA

Dismantling Plain or corrugated steel sheeting, any gauge, thickness, including Nainital or similar pattern roof coverings.

M&L Pre- painted galvatume aluminum zinc coating GI based Semi-corrugated steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specified.

M&L for Pre-painted galvalume aluminum zinc coating GI based Plain steel sheet 0.50mm thick of any colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specified complete all as specified and directed by Engr-in-Charge.

M&L for 0.63mm thick Galvanised, corrugated mild steel sheeting with two corrugations side lap, fixed with coach screws and washers, in roofs, walls etc. with grade of zinc coating 275 all as specified complete all as specified and directed by Engr-in-Charge.

M&L for 0.63mm thick Plain, galvanised, mild steel sheeting, in ridges, hips, valley utters, drip and straight flashings (length and girth as fixed) with grade of zinc coating 275 fixed with self tapping screws as specified complete all as specified and directed by Engr-in-Charge.

Demolition Mud in roofs, any thicknes,any material including plastering ,brick bats, existing tretement and cleaning (whether full thickness removed or only or part there of) etc in all respect and preparing it for further treatment and taking out and disposal of debris & rubbish to a distance exc 1 Km but not exc 1.5 Km complete all as specified & directed by Engr-in-Charge.

M&L for providing cement concrete in type B0 1:2:4 (using 12.5 mm graded crushed stone aggregate) as in roof padding, laid to (consolidated thickness 65mm or less) as leveling course, laid and compacted in min slope 1:30 over roof complete all as specified& directed by Engr-in-Charge.

M&L screed laid 15mm thick in CM 1:4 as in roof over green concrete surface finished even and smooth using Lequid WPC complete all as specified. Note :-Liquid WPC will be measured and paid seperately)

M&L for roof treatment using APP based polymeric membrane minimum weighing not less than 3kg/sqm black finish reinforced with non woven polyster matt with thermo finish (wt. not less than 150 gms/sqm) laid over compatible bitumen primer @0 .30 liters per sqm and bitumen 85/25 @ 1.20 Kg per Sqm with help of torching with a proplyne or a butane gas using torch with minimum overlap of 75mm at side and 100mm at ends and sealing including applying a coat of bitumen primer & bitumen 85/25 applied hot all as per manufacturer instructuions. For parapet in a groove (No separate payment will be made and measurement will be done for horizontal surfaces) including applying a coat of heat repallant bitumen aluminium paint @ 0 .1 liter per Sqm on topof treated surface of roof complete all as specified and directed.

Demolition of brick/stone masonry built in cement/lime mortar of any mix including all quoins pillar ashlars masonry and removal complete all as specified & directed.