REPAIR, RENEWAL AND REPLACEMENT OF ROOF SHEETS, ROOF PAINTING AND ALLIED SERVICES TO CERTAIN BLDGS IN ZONE-I AND II AT UMROI MIL STN UNDER GE UMROI

Amount

Dismantling AC/CGI/PPGI corrugated or semi corrugated sheets in wall cladding or roof coverings and hanger doors including ridges complete all as specified and directed.

Demolition of RCC with concrete cutter machine of any description and in any position not otherwise specifically provided for including taking out and seperating old reinforcement and removal of debries to a distance not exc 50m as directed by Engineer in charge and making site clean, complete all as specified and directed.

Demolotion of Brickwork or stone/ boulder masonry, built in cement mortar including all quoins, arches, pillars, etc, but excluding ashlar facings, dressed stonework and precast concrete articles as in demolition chemney and similar items complete all as specified and directed (Note: Refixing of CGI/PGI sheet and demolition of RCC slabs wiil be measured and paid in respective items in the schedule)

Supply & Fix second class hard wood, clean sawn, weather boarding (Eaves Board of second class hard wood) plain 25mm thick and 225mm wide (V jointed to give 20mm laps) and including two coat of synthetic enamel paint with one coat of pink primer and including replace old decayed boarding & including cutting out old pieces and removing dismantling boarding, complete all as specified and directed. Note:- (a) Qouted rate deemed to be inclusive of scafolding work upto 14.00 meter ht.

M&L for preparation of old wooden weather boarding (Eaves board) of size 225 mm wide and 25 mm thick of any description and applying one coat of synthic enamal paint complete all as specified and directed. Note:- (a) Qouted rate deemed to be inclusive of scafolding work upto 14.00 meter ht.

Fixing only plain or corrugated steel sheet of any guage or thickness as obtained from dismantling item and shall be fixed with 'L' or 'J' type hooks or cranked hook bolts as in roof, complete all as specified and directed..

S&F Pre-painted galvalume aluminum zinc coating PPGL based corrugated/Trapezoidal steel sheet 0.50mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws, complete all as specified and directed.

S&F Pre- painted galvalume aluminum zinc coating PPGL based plain steel sheet 0.60mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall eave board , fixed with self tapping screws, complete all as specified and directed.

Material & Labour preparation of old surface applying one coat of synthetic enamel paint on old CGI roof steel surfaces of any description over 10 cm wide or girth, complete all as specified and as directed.

Material and labour for taking down of existing roof treatment from roof and terrace, roughening surface of old concrete roof by picking, sweeping clean and washing down with water to remove dust, etc and applying roof treatment with the following steps and specifications:- a) Applying crack seal compound of same manufacture of waterproof to fill all cracks of observed on the roof. b) Applying cement slurry over concrete surfaces @3kg/sqm. c) Rendering 15mm thick in cement mortar (1:4) mixed with water proofing compound as per manufactures’ instruction(not less than 3% by weight of cement) on cleaned concrete surfaces of roof and finishing the surfaces fair and even including curing the plastered surfaces for 7 days by ponding of water over the roof, (leveling course). d) Applying evenly one coat of primer coating (diluted with water in the ratio specified by Manufacturers) (min @100-110Sq Ft per liter (diluted quantity)) on the cleaned plastered surfaces. The surface shall be left for air dry for minimum period of 2-3 Hrs. e) Applying evenly one coat of elastomeric water proof coat in one direction (as specified by Manufacturers)(min@ 0.9-1.0 sqm per ltrs) and allow to air dry for 4-6 hrs before applying second coat in other direction perpendicular to the first one (as specified by Manufacturers) (min @0.9-1.0 sqm per ltrs. The total thickness of two coats shall be 0.5 to 0.6 mm. f) The whole system shall be left for air cure for min Seven days (without any movement). Make : - Dr Fixit Newcoat Ezee or Berger Home Shield PU RoofKoat or Asian Paints Smartcare Damp Proof or as equivalent approved by GE. Note : - (i) The waterproofing shall be carried out in the last stage of execution to avoid any damages during the execution. (ii) Payment against this item shall not be allowed till completion of all the stages of work for any slab. (iii) The work shall be executed through well-trained applicators as per manufacturer’s instructions after obtaining written approval from the GE

S&F 500 ltr capacity rotational moulded polythine water storage tanks (ISI marked) ( cylinder vertical with closed top) hoisted and fixed in position all as specified in SSR Part-I, complete all as specified and as directed.

S&F 20 mm bore nipple suitable for HDPE water tank (minimum weight 45 gms), complete all as specified and directed.

Supply & Fixing 20 mm dia ball brass valve high pressure with polythene float and fly nut complete scrwed for iron pipe or brass ferrule, complete all as specified and as directed.

Supply & Fix in repair 20 mm dia ball brass valve high pressure with polythene float and fly nut complete scrwed for iron pipe or brass ferrule, complete all as specified and as directed.

Taking up or down steel tubing and conncection 20 mm bore, incl cleaning for re-fixing or removal to store, complete all as specified and as directed.

S&F steel tubing of 20 mm dia, medium grade connecting old or new posotion, complete all specified and directed

Refixing old steel tubing 20 mm dia and connection in new or old position, complete all specified and directed

Dismantling wall and ceiling board any thickness including cover fillets, complete all specified and directed

Supply and fix false ceiling of designer tile ivory painted (high pressure steam cured ) of 4mm thick (as per IS: 14862) of size 595x595mm and any one of the design (cascade or electra) in true horizontal level. Suspended on inter locking metal grid of hot dipped galvanized steel section (galvanized @120gms both side inclusive and black painted groove on all T webs)consisting of main T runner with suitably spaced joints to get required length and 15x32mm made of 0.3mm thick sheet spaced at 1200mm c/c and cross T of size 15x32mm made of 0.3mm sheet 1200mm long spaecd between main T at 600mm c/c to form a grid of 1200x600mm and secondary cross T of length 600mm and size 15x32mm made of 0.3mm thick sheet to be interlocked at middle of the 1200x600mm panel to form grids of 600x600mm and wall angle of size 24x22x0.40mm and laying false ceiling tiles in the grid including required cutting/making opening for services like diffusers, grills, light fittings, fixtures, smoke detectors etc.Main T runners to be suspended from trusses/ceilings using suitable suspension arrangement as per manufacturers instructions/literature. GI adjustable wire of 4mm dia with galvanized butterfly level clips spaced at 1200mm c/c along main T bottom exposed width of 15mm of all T section of 4mm dia GI wire shall be pre-painted with with polyster paint and black painted groove at centre of size 4mm depth and 4.5mm width, complete all specified and directed

Taking down eaves gutters and rain water pipes (any size or pattern), including all fittings, heads, shoes, bends, swan necks, etc, including cleaning or refixing or removal to store, complete all specified and directed

Supply & Fix 110mm dia bore PVC (SWR) pipes single socketed, in any length with rubber ring joints, fixed to walls including all fittings and fixed with clamp, complete all specified and directed

Supply & Fix in repair half round color coated UPVC gutter/runner drop for rain water drain in bldgs of size not exceeding 150 mm with firmly attached downpout of suitable size discharging storm water into PVC SWR pipe of 110 mm dia and similar works etc complete all as specified and directed. Note: the rate shall be inclusive of downpouts,drop outlet,Elbows,End cap,Straight connecter,Brackets, downspout couple,splash block,out site corner,clamps as required at site as per standered Engineering practice and directed by Engr-in-charge.

S&F Bands, straps, supports or stays for rainwater, ventilating pipes, including bolts, if required: hooks (stay), heavy, for large gates; hook and pintle hinges: large hasps and staples; chains;hand made sliding bolts; clamps;hold fasts; wall ties; hooks for hanging fans; plain angle cleats for securing purlins to wood trusses or rafters; knee piece inserts; two way and three way straps, plate washers and similar small articles conforming to Fe-290 Gde-E-165, complete all specified and directed

Supply & Fix 110mm bore PVC (SWR) bends any radius, complete all specified and directed

Supply & Fix 110mm bore PVC (SWR) branch pieces, single 'Y'/'T', equal or unequal, complete all specified and directed

Schedule of Credit

M/S SUBHASH BHATTACHARJEE

M/s Sohini Construction

M/S N K associates

M/S T N CONSTRUCTION

M/S RAJA CONSTRUCTION

Lyngdohs Construction Company And Associates

MOINUL HOQUE CHOUDHURY

M/s A R Traders

M/s Eddy Constructions

N.V.ENGINEERING

M/s M.L Consortium