Replacement of CGI sheets and chajja of office building of superintending Engineer Generation circle-II Bemina and providing of separate entry for ladies washroom with modification to existing accessories allied works

Dismantling roofing including ridges, hips valleys and gutters etc., and stacking the material within 50 meters lead of : 15.28.1 G.S. Sheet

Providing and fixing precoated galvanized iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.50 mm (+ 0.05 %) total coated thickness with zinc coating 120 grams per sqm as per IS: 277, in 240 mpa steel grade, 5-7 microns epoxy primer on both side the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12 metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55 mm) with EPDM seal, complete uptoany pitch in horizontal/ vertical or curved surfaces, excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required

Providing ridges or hips of width 60cm overall width plain G.S. sheets fixed with polymer coated J. or L hooks, bolts and nuts 8mm dia G.I. limpet and bitumen washers complete.12.4.3 0.50 mm thick with zinc coating not less than 275 gram/m2

Providing valleys of 90cm wide overall in plain G.S. sheets fixed with polymer coated J. or L. hooks, bolts and nuts 8 mm dia G.I. limpet and bitumen washers complete12.5.3 1.00 mm thick with zinc coating not less than 275 gram/m2

Providing and fixing plained eaves boarding.12.69.2.1 250x32 mm (nominal size )

Providing and fixing 20mm thick wooden planks ceiling (frame work for base to be paid for separately) with M.S. screws12.34.5 Budloo/fir wood

Dismantling wood work in frames, trusses, purlins and rafters upto 10 nmeters span and 5 meters height including stacking the material within 50 meters lead : and above.15.14.1 Of sectional area 40 sqcm. and above.

Providing wood work in frames of doors, windows, clerestory windows andother frames, wrought framed and fixed in position with hold fast lugs or with dash fasteners of required dia and length (hold fast lugs or with dash fasteners shall be paid for separately9.1.8 Kiln seasoned and chemically treated hollock wood

Applying priming coat:Applying priming coat:13.58.1 With ready mixed pink or grey primer of approved brand and manufacture on wood work (hard and soft wood)

Finishing with Deluxe multi surface paint system for interiors and exteriors using primer as per manufacturers’ specifications13.57.2 Painting wood work with deluxe multi surface paint of required shade. Two or more coats applied @ 0.90litre/10sqm over an under coat of primer applied @ 0.75litre/10sqm of approved brand and manufacture