Maintenance (Minor works) of 3 nos. Schools under Khowai, Kalyanpur and Mungiakami Block, Khowai District for the year 2026-27

Dismantling GS sheet roofing including ridges, hips, valleys, gutters wind ties etc. including dismembering and stacking of serviceable materials and unserviceable materials separately with all lifts and upto a lead of 50 m etc. complete as per direction of the Engineer- in-charge.

Dismantling old plaster or pointing, raking out joints, cleaning and preparing the surface for re-plastering or re-pointing including disposal of rubbish to the dumping ground with all leads and lifts etc.complete as per direction of the Engineer- in-charge.

Dismantling doors, windows and clerestory windows (steel or wood) shutter including chowkhats, architrave, holdfasts etc. complete and stacking within 50 metres lead :Of area 3 sqm and below.

Providing and fixing in position 1mm thick M.S. sheet sliding-shutters with frame and diagonal braces of 40x40x6mm angle iron and 3mm M.S. gusset plates at the junction and corners 25mm dia pulley, 40x40x6mm angle and T-iron guide sufficiently long at the top and bottom respectively, channels & with bolts, nuts, rivets, locking arrangement, stoppers, handles, hold fast including embedding in cement concrete of required grade for fixing in position, all necessary fittings, including applying a priming coat of approved steel primer etc. complete as required.

Providing corrugated G.S. sheet roofing including vertical/curved surface fixed with polymer coated J or L hooks, bolts and nuts 8 mm diameter with bitumen and G.I. limpet washers or with G.I. limpet washers filled with white lead and including a coat of approved steel primer and two coats of approved paint on overlapping of sheets complete (up to any pitch in horizontal/ vertical or curved surfaces) excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. 0.63mm thick with zinc coating not less than 275gm/m2

Providing ridges or hips of width 60 cm overall width plain G.S. sheet fixed with polymer coated J or L hooks, bolts and nuts 8 mm dia G.I. limpet and bitumen washers complete. 0.63mm thick with zinc coating not less than 275gm/m2

15 mm cement plaster on the rough side of single or half brick wall of mix: Cement mortar 1:4 (1 cement : 4 fine sand)

Distempering with 1st quality acrylic distemper (ready mixed) having VOC content less than 50 grams/ litre, of approved brand and manufacture to give an even shade [Payment shall be made after submission of Test Certificate issued by the manufacturer] : New work ( two or more coats) over and including water thinnable priming coat with cement primer.

Finishing walls with acrylic smooth exterior paint of required shade of approved brand and manufacture [Payment shall be made after submission of Test Certificate issued by the Manufacturer] : New work ( two or more coats applied @ 1.67 litre/10 sqm over and including priming coat of exterior primer applied @ 2.20 kg/10 sqm)

Finishing with Epoxy paint ( two or more coats) of approved brand and manufacture at all locations prepared and applied as per manufacturer's specification including appropriate priming coat, preparation of surface etc. complete [Payment shall be made after submission of Test Certificate issued by the Manufacturer]. On steel work