Replacement of damaged CGI and Colour-Coated metal sheets, along with the repair and painting of M.S. structural components at various locations within DPPS/DPL. Job no. 908/DPPS.

Amount

Taking out carefully G.C.I. or C.I. or asbestos sheets (including ridges etc.) from roof or wall after unscrewing bolts, nuts, screws etc. and stacking the material at site as directed.

Supplying, fitting and fixing single skin colour coated trapezoidal profile for wall cladding, Roof shall be made of 0.45 mm BMT (Base Metal Thickness), 0.50 mm TCT (Total coated thickness excluding paint), G550 (min 550 yield strength), of Zincalume metallic coating (IS 15965) with high Solar Reflectance Index (SRI) value for better cooling as per thermatech technology, 1000-1015 mm effective cover width with five major corrugation, 28 mm high rib spaced at 203 mm c/c with subtle square fluting in the pan and the end rib shall have anti-cappilary groove and return leg. The steel sheet shall be fastened with 40 micron zinc coated or 25 micron zinc-tin alloy coated, hex head, self- drilling screw as per IS 3566-2002 Class 3 fastener. The base steel shall be coated with zinc-alluminium alloy Zinalume (AZ150) (i.e. 55% Al, 43.4% Zinc, 1.6% Si) minimum of 150 g/m2 coating total on both sides, pre-painted with colorband XRW (exterior roofing, walling) paint system of 35 micron Super Durable Polyester paint (SDP) with stable inorganic pigment with no lead contents confirming IS 15965. The sheet shall be free from defects and have brand marking of the manufacturer giving product details on the back of the sheet at regular interval confirming genuinity of the material. (i) in Roof (a) 0.5 mm thick sheet.

Supplying, fitting & fixing UPVC pipes A- Type and fittings conforming to IS:13592-1992 with all necessary clamps nails, including making holes in walls, floor etc. cutting trenches in any soil through masonry concrete structures etc. if necessary and mending good damages including joining with jointing materials (Spun Yarn, Valamoid/Bitumen/M-Seal etc.) complete. A) UPVC Pipes (iii) 160 mm. Dia.

Making one set of scaffolding only for replacing glass panels, painting, uprooting plant and another repairing works of building and S&P works for external works only with 10 cm. dia bamboo as main posts at the rate of 1 metre centre to centre and 7.5 cm. dia bamboo ties @ 0.75 metre apart fitting and fixing with necessary coir, nails etc. as per direction of the Engineer-in charge.

(a) 3.90 metre height

(b) 7.5 metre height

(c) upto 11.10 meter height.

(d) upto 15.00 m

(e) upto 20.00 m

(f) upto 26.00 m

(g) upto 30.00 m

M.S. structural works in columns, beams etc. with simple rolled structural members (e.g. joists, angle, channel sections conforming to IS: 226, IS: 808 & SP (6)- 1964 connected to one another with bracket, gussets, cleats as per design, direction of Engineer-in-charge complete including cutting to requisite shape and length, fabrication with necessary bolting, metal arc welding conforming to IS: 816- 1969 & IS: 1995 using electrodes of approved make and brand conforming to IS:814- 2004, haulage, hoisting and erection all complete. The rates includes the cost of rolled steel section, consumables such as electrodes, gas and hire charge of all tools and plants and labour required for the work including all incidental charges such as electricity charges, labour insurance charges etc. II) For Structural Works in Roof Trusses etc. using joists, channels and angles of specified section weighing less than 22.5 kg/ m. (Structural members to be supplied by the contractor)

Galvanised iron sheet ridging fitted with necessary bolts, screws, washers etc. complete.(225mm end lapping) (A) 300 mm lapping each way (a) With 0.60 mm sheet

Galvanised corrugated iron sheet work (excluding the supporting frame work) fitted and fixed with 10mm. dia. J or L hook-bolts, limpet and bitumen washer sand putty complete with 150mm. end lap and one corrugation minimum side lap. (Payment to be made on area of finished work)(GCI sheet to be supplied by contractor) (i) In Roof: a) With 0.60 mm thick sheet

(ii) In wall: a) With 0.60 mm thick sheet

Removing loose scales blisters etc. from old painted surface and thoroughly smoothening the surface to make the same suitable for receiving fresh coat of paint.

Priming one coat on steel or other metal surface with synthetic oil bound primer of approved quality including smoothening surfaces by sand papering etc.

Painting with best quality synthetic enamel paint of approved make and brand including smoothening surface by sand papering etc. including using of approved putty etc. on the surface, if necessary : (b) On steel or other metal surface: With other than hi-gloss of approved quality iv) Two coats (with any shade except white)

CHAKRABORTY ENTERPRISE (BID ID -6349603)