Maintenance of PWD(RandB) Sub-Division office building of Kakraban / SH Plastering, painting, flooring, sanitary installation and other allied works etc. during the year 2026-27

Providing and applying fibre reinforced elastomeric liquid water proofing membrane with resilient acrylic polymers having Sun Reflectivity Index (SRI) of 105 on top of concrete roof in three coats @10.76 litre/ 10 sqm. One coat of self-priming of elastomeric waterproofing liquid (dilution with water in the ratio of 3:1) and two coats of undiluted elastomeric waterproofing liquid (dry film thickness of complete application/ system not less than 500 microns). The operation shall be carried out after scrapping and properly cleaning the surface to remove loose particles with wire brushes, complete in all respect as per the direction of Engineer-in-Charge.

Grading roof for water proofing treatment complete as required as per direction of the Engineer-in-charge with : i) Cement concrete 1:2:4 (1 cement : 2 fine sand : 4 graded stone aggregate 20 mm nominal size)

Providing and fixing glazing of approved quality in aluminium doors, windows, ventilator, shutters and partition etc. with EPDM rubber / neoprene gasket etc. complete as per architectural drawing and the direction of Engineer-in-charge (Cost of snap beading shall be paid in basic item) :- With float glass panes of 4.0 mm thickness ( weight not less than 10.0 kg / sqm )

Providing and fixing aluminium work for doors, windows, ventilators and partitions with extruded built up standard tubular sections/ appropriate Z sections and other sections of approved make conforming to IS: 733 and IS : 1285, fixing with dash fasteners of required dia and size, including necessary filling up of gaps at junctions, i.e. at top, bottom and sides with required EPDM rubber/neoprene gasket etc. Aluminium sections shall be smooth, rust free, straight, mitred and jointed mechanically wherever required including cleat angle, aluminium snap beading for glazing / paneling, C.P. brass / stainless steel screws, all complete as per architectural drawing and the direction of Engineer-in-charge. (Glazing and paneling and dash fasteners to be paid for separately) :- A) For fixed portion of approved quality:- Anodised aluminium (anodised transparent or dyed to required shade according to IS: 1868, Minimum anodic coating of grade AC 15).

B) For shutters of doors, windows & ventilators including providing and fixing hinges / pivots and making provision for fixing fittings wherever required including the cost of EPDM rubber / neoprene gasket required ( Fittings shall be paid for separately ):- Anodised aluminium (anodised transparent or dyed to required shade according to IS: 1868, Minimum anodic coating of grade AC 15).

Removing dry or oil bound distemper, water proofing cement paint and the like by scrapping, sand papering and preparing the surface smooth including necessary repairs to scratches etc. complete.

Distempering with 1st quality washable acrylic distemper of approved brand and manufacture and of required shade on old work ( one or more coats ), to give an even shade as required complete as per direction of the Engineer in charge.

Finishing walls with acrylic smooth exterior paint of required shade of approved brand and manufacture on old work ( one or more coats ) including preparation of surface as required complete as per direction of the Engineer in charge.

Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sqm and under including cutting the patch in proper shape and preparing and plastering the surface of the walls complete including disposal of rubbish to the dumping ground with all leads and lifts including finishing even and smooth and curing complete as per direction of the Engineer in charge:- i) With cement mortar 1:3 ( 1 cement : 3 fine sand ).

ii) With cement mortar 1:4 ( 1 cement : 4 fine sand ).