REPAIRS TO ROOF VALLEY GUTTERS UNDER AGE BR III OF GE ND VISAKHAPATNAM

Amount

SCHEDULE'A' PART-I: B/R WORKS

Dismantling of plain or corrugated steel sheeting, any gauge, thickness including Nainital or similar pattern (with necessary safety measures i.e.scaffoldings/hanging platform upto 10th floor using safety harness and necessary precaustions) roof covering complete all as specified and directed.

S&F for 0.50 mm thick pre-painted corrugated/’Z’ profile galvalume roofing sheets as in roofing (in any location and any type) having high strength steel with minimum 550 Mpa strength hot dip coated with aluminium zinc alloy (55% aluminium and 45% zinc) pre-painted with primer coat of 5 micron and coated with Silicon modified polyester coating of 20 micron and alkalyed coating of 10 micron on reverse side. End rib, side over lap and over lap of sheets shall be designed for anti capillary activities to avoid any seepage of water through lateral overlap as per manufacturer’s instructions, including fixing with self drilling and self tapping screws 0.5mm dia full threaded, all Kautex coated and fitted with EPDM washers in stainless steel. The screws shall be coated with anti-corrosive substance to ensure longer life and shall be fixed using drill guns for lead proof installation. Screws shall be of “HILTI” make Complete all as specified and as directed. (with necessary safety measures i.e.scaffoldings/hanging platform upto 10th floor using safety harness and necessary precaustions.)

S&F for 0.80mm thick, Plain, galvanised, mild steel sheeting, in ridges,hips, valley gutters, drip and straight flashings(length and girth as fixed) with grade of zinc coating 275 all as specified and directed by Engr-in -charge. (with necessary safety measures i.e.scaffoldings/hanging platform upto 10th floor using safety harness and necessary precaustions.)

S&F for 2mm thick,Fibre glass reinforced translucent corrugated sheeting with two corrugations side lap fixed with coach screw and washer in roof, wall etc.( (with necessary safety measures i.e.scaffoldings/hanging platform upto 10th floor using safety harness and necessary precaustions.)

Dismantling wrought iron or mild steel work of any description not otherwise provided for complete all as directed.

S&F for Mild steel wind ties for roof including securing bolts all as specified and directed by Engr in charge.( (with necessary safety measures i.e.scaffoldings/hanging platform upto 10th floor using safety harness and necessary precaustions.)

S&F roof trusses (framed) trussed, purlins, crane gantries, rails and fastenings and heavy bracket framing (beam tee, angle, channel or flat sections) including clits etc conforming to Fe 410 -W(Gde E-250 Quality A)

S & F Mild steel Angles, bars, flats etc., as in supports for drain cover, stiffening of fencing post struts , wall ties, hold fasts, clamps and similar small articles confirming toFe 290 Gde-E-165

M&L Preperation old painted surfaces of steel and applying one coat of synthetic enamel paint any description not other described over 10cm width or girth complete all as specified and as per specified by Engineer -in-Charge .

M&l Painting two coats of synthetic enamel paint over a coat of red oxide primer to new steel Surfaces of any description, not otherwise described, over 10cm width or girth.

Taking down rain water pipes,SWR pipes including all fittings any size and p (with necessary safety measures i.e.scaffoldings/hanging platform upto 10th floor using safety harness and necessary precaustions.) etc..

M&L for 110mm PVC(SWR) pipes single socketed in any length with rubber ring joints fixed to walls with necessary safety measures i.e.scaffoldings/hanging platform upto 9th floor using safety harness and necessary precaustions.

S/F 110PVC(SWR) branch piece,single (single Y) equal or unequal with access door

S & F 110 mm dia., PVC Bends (any Radius) with access door

prasad constructions (BID ID -3121011)

SRI LAKSHMI NARASIMHA ENTERPRISES (BID ID -3113966)

SRI DHANESWARI ENGINEERING WORKS (BID ID -3124682)

SAI GANESHA BUILDERS (BID ID -3124900)

N V S S K N SIVA PRASAD (BID ID -3112719)