Annual maintenance and repair of fabrication and erection of steel structural and roofing works of various buildings

Amount

Supply Fabrication and erection of steel structures by welded or bolted in built up /single sections for trusses, lattice beams , purlins,ties, bracings etc for repair/maintenance/petty new works with MS angles, channels, joists,plates etc including all cost and conveyance of all materials, loading & unloading charges, all labour charges, cost of consumables, applying one coat of marine primer , hire charges for tools and plants,providing temporary support for adjoining structures, dismantling and removing damaged structures etc complete as per standard specification. ( MS items Visaku, Jindal, sail , Tata or equivalent make with ISI mark)

Supply and erection of MS gratings ( MS hot dip galvanized grattings made out of 40x5 mm flat for frame and main members spaced with 40 mm pitch and cross bars 8mm tor steel spaced at 100mm pitch panel size 1000mm x1000mm ) including dismantling and removing damaged gratings , making nearing structures to suit for fixing gratings, conveyance of materials, loading & unloading charges ,all labour charges,hire charges for tools& plants,providing temporary supports for adjoining structures etc.complete as per standard specifications

Supplying and Fixing of Moulded / Pultruded FRP gratings panel using isophthailic fire retardent grade resin, grattings should be square mesh size 35-50mm height / depth 35- 50mm rib thickness 5-8 mm with necessary accessories like ss clamps with nuts & bolts of panel size 1000mm x 1000 mm including cost and conveyance of materials, loading unloading charges, hire charges for tools & plants, dismantling and removing damaged gratings , making nearest structures to suit for fixing new grattings, etc.complete as per standard specifications

Supply and fixing with AC corrugated Roofing / side cladding sheet with fixed with suitable size Zinc phosphated galvanised and polymer coated J or L bolts With washer including necessary overlap of 150mm at ends including all cost conveyance of all materials , loading & unloading charges ,all labour charges hire charges for tools and plants, dismantling and removing existing damaged roof sheets, dismantling and replacing the sheets of nearest bay for easiness of the work and removing the same if necessary etc complete as per standard specification. (AC sheet make: Everest/ Ramco or equivalent with ISI mark)

Supplying and fixing UPVC Trapizoidal Roofing sheet 2mm thick for roof & side cladding fixed with suitable size GI coated J or L bolts and nuts and washers or self driving including necessary overlap of 150mm at ends or with self driving screws including cost & conveyance of all materials , loading & unloading charges ,all labour charges hire charges for tools and plants, dismantling and removing existing damaged roof sheets, etc complete as per standard specification. (UPVC sheet make: Lotus/ Palram/ Dion )

Supplying and fixing Polycarbonate fully corrugated sheet clear / UV stalised diffuser type having minimum thickness 1.80 mm with width of 1050 mm& length of 3 .00 m to suit with fully corrugated asbestos cement roofing sheet for roof & side cladding fixed with suitable size Zinc phosphate galvanised and polymer coated J or L bolts With washer and with necessary overlap of 150mm at ends including cost & conveyance of all materials , loading & unloading charges ,all labour charges, hire charges for tools and plants, dismantling and removing existing damaged roof/ side cladding sheets, etc. complete as per standard specification. (Polycarbonate sheet make Lotus or equivalent)

Supplying and fixing Turbine air wind ventilators 600mm throat dia with FRP / poly carbonite base and base with SS or Aluminium for roof & fixed with suitable size Zinc phosphated galvanised and polymer coated J or L bolts with washer and cap including cost & conveyance of all materials , loading & unloading charges ,all labour charges hire charges for tools and plants, dismantling and removing existing roof sheets for fixing ventilators, etc complete as per standard specification.

Supply and fixing AC Barge boards for roof / side cladding AC barge boards with Zinc phosphated galvanised and polymer coated J or L bolts With nuts & washer and cap at all heights and levels including, making the ends of sheets in correct lines and levels ,conveyance of materials, loading & unloading charges ,all labour charges ,hire charges for tools and plants, providing necessary scaffolding/ safety arrangement equipments for the work etc. complete as per standard specification. (AC sheet make: Everest/ Ramco Or equivalent with ISI mark)

Supplying and fixing AC corrugated ridge with Zinc phosphated galvanised and polymer coated J or L bolts With nuts & washer and cap at all heights and levels including cost and, conveyance of all materials, loading & unloading charges ,all labour charges ,hire charges for tools and plants, providing necessary scaffolding/ safety arrangement equipments for the work etc. complete as per standard specification. (Everest,Ramco or equivalent make )

Supplying and fixing FRP Valley gutter, 600mm width, central height of 250mm , minimum wall thickness 6mm , trapazoidal shape suitable to existing site condition, providing necessary stiffeners at regular interval ( approx .1.20 m centre to centre ) to prevent sagging, fixing just below the edge of roof sheet, providing sufficient slope towards both ends in to the rain water drain pipe. The gutter shall be made using isophthalic resin, glass fiber mat, surface mat & resin coating at top ( grey colour ) on exterior surface, each gutter of length 6 m to 8 m approx, proper overlapping at joints. The end of roof gutter shall have outlet nozzle/ end drop of approx, size 150mm dia, 200 mm long at both end to suit PVC drain pipe, end stoppers, jointing them in PVC rain water down take pipe using same type of FRP resin, , glass fiber should be smooth finish with out any defects. All the joints shall be lined with additional layers of glass fiber mat & resin and make the joints leak proof necessary scaffolding etc all required for the completion of the work and as directed by Engineer - in - charge with prior approvil. the adjuestable MS threaded bolts of required size & length shall be provided under the existing purlin to make sufficient slope towards the end of drain. including cost and conveyance of all materials, labour charges,for cutting shaping conveyance & lead & lift & fixing FRP VG, hire charges for tools and plants,providing necessary scaffolding platforms etc complete as per standard specification

The FRP coating work schedule as specified below: • Supplying and applying two coats of FRP coating on various surfaces, including AC roof sheet joints, bolt holes, ridge, boundary wall gutter, and the outside surface of the parapet wall. The coating should be performed using isophthalic resin and glass fiber mat coating at the top. The minimum wall thickness requirements will be determined by the company authorities. The work should ensure leak-proof joints and comply with the instructions of the Engineer-in-charge. • Surface Preparation: The surface preparation shall involve thorough cleaning using a wire brush or sandpaper to remove existing damaged coating any loose particles, rust, or contaminants. The surface should be clean, dry, and free from any debris before the application of FRP coating. • Material and Application: a) FRP Coating: The FRP coating material shall consist of isophthalic resin, glass fiber mat, surface mat, and resin coating. The coating shall be applied in two coats to achieve the desired thickness and durability. The colour of the top coat should be approved colour as specified. b) Application Method: The FRP coating shall be applied according to the manufacturer's guidelines and industry best practices. The coating should be evenly applied to the designated areas, ensuring complete coverage and adherence • Leak-proof Joints:All joints, including AC roof sheet joints, bolt holes, ridge, boundary wall gutter, and parapet wall, shall be made leak-proof using the FRP coating. The coating should provide a reliable seal, preventing water ingress and ensuring long-term protection. • Safety Measures:Necessary safety measures shall be implemented during the FRP coating application.This includes the provision of appropriate scaffolding, platforms, and safety equipment as required by the Engineer-in-charge • Cost and Completion: The contractor shall bear the cost of all materials, including FRP coating materials, as well as labour charges, hire charges for tools and plants, and the provision of necessary scaffolding platforms. The work shall be completed as per standard specifications and in accordance with the instructions given by the Engineer-in-charge

Repair of Valley gutter ( VG )/ Boundury wall gutter( BG ), joints, Gable wall joints etc including dismantling & removing damaged VG&BG clamps& replaced the same , dismantiling and removing existing seam bolts and nuts, tarfelt, roofing compound, cement plastering etc clearing the surface, repairing of joints , replacing seam bolts & nuts, apply tarfelt with roofing compound, cement plastering for gable wall side with an average width of 460mm etc , as per the specification as directed by the company representatives and ensure leak proof including covenyance of materials Loading & unloading charges, all labour charges, clearing away the dismantled waste materials in the scrap yard , providing scaffolding/ all safety equipments arrangements etc. complete.(All the materials required for the above shall be brought by the contractor)

Supply and fixing Zinc phosphated galvanised or polymer coated J or L bolts & nuts with GI plate washers, bitumen washers and cap etc for replaceing of damaged roof / side clading at all heights and levels including dismantling and removing the damaged bolts and nuts, hire charges for tools and plants,providing necessary scaffolding/ safety equipments for the work etc complete as per standard specification.

Painting the steel structural works such as columns, trusses, purlins, tie beams, bracings, VG clamps, grattings etc with two coat enamel paint (Two different colours) over a coat of marine primer of approved quality after through surface preparation at all heights& levels including all cost and conveyance of materials, labour charges, loading unloading charges, hire charges for tools and plants, providing necessary scaffolding & covered of machinery with tarpaulin, etc complete as per standard specification. (Paint make: Berger/ Asian/Nerolac/ ICI or equivalent make ) (All the materials, tools & plants, tarpaulin etc required for the above shall be supplied by the contractor)

Painting the newly erected steel structural work such as MS angle, channels, joist plates , flats etc. of columns trusses, purlin tie, bracing, VG clamps etc. at all height & levels with two coat of enamel paint (.first coat apply after all fabrication and second coat apply after erection), including all labour charges conveyance of all materials , hire charge for tools and plants, providing necessary scaffolding etc. covering the machineries inside the building with tarpaulins while carrying out the works, complete as per standard specification

Dismantling and removing steel structures such as MS angles, channels, plates, Beam etc of columns trusses, purlin, side cladding, etc at all heights using proper tools and plants without damaging the adjacent structures Including providing temporary supports for the structure at dismantled portion and nearby structures lowering the dismantled items carefully and staking materials useful for reuse at convenient place as directed by the company authorities and depositing the waste materials in the scrap yard including all labour charges, hire charges for tools and plants, loading unloading charges, providing necessary scaffolding etc complete as per standard specification.

Sundry and petty repair works Heavy mazdoor

Sundry and petty repair works Blacksmith