REPAIR TO ROOF AND ROOF TREATMENT AT SECTOR 31 A, B, C and D AT AF STN CHANDIGARH

Amount

Dismantling the entire roof covering including brick tiles/concrete tile of any thickness, mud phuska , mud plaster and water proofing treatment any number of layers or thickness etc of any description upto RCC roof slab and cleaning the surface including flashings and junction of parapets, etc with wire brushes and water to the entire satisfaction of Engineer-in-charge including removing soil (mud phuska), APP membrane, plastering, PCC etc from outside MoD land and applying neat cement slurry @ 3.00 kg/Sqm of complete all as specified and as directed by Engineer-in-Charge. Note:- The rate include for necessary temporary arrangement of water supply from existing connection to toilets, bathrooms and kitchen for convenience of the occupants staying in quarters until completion of entire roof treatment work and no any extra payment made for this account.

Demolition of cement concrete (Unreiforced) in any description and in any position not other wise specifically provided for, complete all as specified and directed.

Demolition of cement concrete (Reinforced), of any description & in any position (below or above ground level), not exceeding 15cm thickness, including removal of rubbish outside MoD land, complete all as specified and directed.

M&L for providing cement concrete (1:2:4), type B-0, (using 12.5 mm graded crushed stone aggregates), as in, lintels upto 1.5m clear span, cills, steps; seismic and other similar bands, plinth courses, string courses, lacing courses, parapets and railings upto 60 cm in height, copings, kneelers, apex stones, bed plates, kerbs , water troughs and the like including weathering, slightly rounded or chamfered angles and throating, as directed , complete all as specified and directed by Engineer-in-Charge.

M&L for PCC 1:2:4 type B-0, (using 12.5 mm graded crushed stone aggregates) as in roof kerb or mud stops mixed with acrylic base liquid water proofing compound @ 2% by weight of cement including all necessary form work, complete all as specified and directed by Engineer-in-Charge. Note:-Supply only water proofing compound shall be measured and paid separately.

M&L for Plain cement concrete 1:2:4 type B1 using 20mm graded crushed stone aggregate average thickness 75 mm as in roof padding finished the surface even and smooth without using extra cement including mixing liquid water proofing liquid as per manufacturers instruction complete all as specified and as directed. Note:- Supply only water proofing liquid shall be measured and paid seperately

M&L for rendering 10mm thick in cm 1 : 3 mixed with liquid water proofing compound as per manufacturer’s instructions on concrete/brick surfaces finished even and smooth without using extra cement complete all as directed complete all as specified and as directed. Note:- Supply only water proofing liquid shall be measured and paid seperately

M&L for water proofing treatment of roof consisting as under : - (a) Applying bituminous primer @ 0.30 litre per sqm over cleaned and dry roof surface including parapet (b) M&L for applying a coat of blown bitumen 85/25 grade @ 1.20 kg per sqm over priming coat of roof . (c) Material and labour for providing and laying 3mm thick APP modified polyester reinforced water proofing membrane with minimum weight of 3.60 kg/sqm , as specified. The APP membrane shall be laid using torch-on application with minimum 10 cm side overlap and 15 cm end overlap. The APP membrane shall be fixed with termination bar and fasteners and end shall be properly sealed with sealant. The rain water gutter portion shall be finished with cement mortar 1:4 to provide requisite slope towards rain water pipe outlet. (Make of APP membrane : Pidilite Industries/STP/IWL/Torch Tar as approved by GE) Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 Mtr height building.

M& L for Cement concrete tiles 20cm x 20cm x 20mm thick, machine pressed; set jointed and pointed in neat cement slurry in floors, and cut and polished with grey cement and no pigments over and including 20mm thick screed or bedding layer in cement mortar 1:4 complete all as specified and as directed.

Material and labour for cutting out cracks to V-section in existing roofs or tarracing, cleaning out, wetting ,grouting with cement and sand slurry 1:3, complete all as specified and directed.

Supply only liquid water proofing compound, complete all as specified and directed.

Disconnecting existing water tanks of capacity exceeding 250 litres but not exceeding 500 litres, draining out of water, setting aside (or lowering if required) for repair/cleaning and removing accumulated sludge/dirt scales from tank bottom, side and from mouths of circulating pipes of service tanks located on roof of building and disinfecting the tank using bleaching powder to make the tank bacteria free, writing by stencil date of cleaning of tank with white synthetic enamel paint on black ground "Cleaned on (date)" height of words 100mm, and hoisting if required, refixing and reconnecting in position after cleaning complete all as specified and directed.

Disconnecting existing water tanks of capacity exceeding 500 litres but not exceeding 1000 litres, draining out of water, setting aside (or lowering if required) for repair/cleaning and removing accumulated sludge/dirt scales from tank bottom, side and from mouths of circulating pipes of service tanks located on roof of building and disinfecting the tank using bleaching powder to make the tank bacteria free, writing by stencil date of cleaning of tank with white synthetic enamel paint on black ground "Cleaned on (date)" height of words 100mm, and hoisting if required, refixing and reconnecting in position after cleaning complete all as specified and directed.

Dismantling existing water PVC tanks/demolition of RCC tank of capacity exc 250 Litre but n.exc 500 litre and removal from site to store for reuse or credit, complete all as specified and directed.

Dismantling existing water PVC tanks/demolition of RCC tank of capacity exc 500 Litre but n.exc 1000 litre and removal from site to store for reuse or credit, complete all as specified and directed.

Supply and fixing/hoisting, rotational moulded polyethylene (HDPE) water storage tanks (cylindrical vertical with closed top), 500 litres capacity ‘double layered’, hoisted and fixed in position including inlet, outlet and drain pipe with plug, complete all as specified and directed.

Supply and fixing/hoisting, rotational moulded polyethylene (HDPE) water storage tanks (cylindrical vertical with closed top), 1000 litres capacity ‘double layered’, hoisted and fixed in position including inlet, outlet and drain pipe with plug, complete all as specified and directed.

Supply and fixing ball valve of PTMT, high pressure, with epoxy coated aluminium rod and high density plastic ball, ISI marked screwed & suitable for iron pipe 20mm dia bore and minimum weight 210gms, complete all as specified and as directed

Supply and fix in repair, ball valve high pressure of PTMT with epoxy coated aluminium rod and high density plastic ball, ISI marked screwed & suitable for iron pipe 20mm dia bore and minimum weight 210 gms , complete all as specified and as directed

Taking down eaves gutter and rainwater pipes (any size or pattern), including all fittings complete all as specified and as directed.

Supply and fixing 110 mm bore PVC (SWR) pipes, single socketed in any length, with rubber ring joints, fixed to wall and making good the mouth of rain water pipe in PCC 1:2:4 type-B0, using 12.5mm crushed stone aggregate , complete all as specified.

Supply and fixing 110mm bore PVC (SWR) bends any radius, fixed to pipes with adhesive, complete all as specified and directed.

S&F in repairs 100mm bore of pipe stack clamps out of 50 mm by 5 mm flat iron and 16mm dia round iron stays, including bolts and nuts and securing ends of stays to wall or roof complete all as specified and as directed.

Taking up or down existing steel water tubing and connections, 15mm bore for re-fixing or removing from site to store for reuse or credit, including taking down standard fittings, complete all as specified and directed.

S&F 15mm bore galvanised iron tube medium grade with all fittings and fixed complete to walls and ceiling or laid in floor including clamps for fixing to wall, complete all as specified and directed.

Re-fixing galvanised water tubing 15mm dia bore with all fitting with new or old position, fixed complete to walls and ceiling or laid in floor including clamps for fixing to wall, complete all as specified and directed.

Taking up or down existing steel water tubing and connections, 20 mm bore for re-fixing or removing from site to store for reuse or credit, including taking down standard fittings, complete all as specified and directed.

S&F 20mm bore galvanised iron tube medium grade with all fittings and fixed complete to walls and ceiling or laid in floor including clamps for fixing to wall, complete all as specified and directed.

Re-fixing galvanised water tubing 20mm dia bore with all fitting with new or old position, fixed complete to walls and ceiling or laid in floor including clamps for fixing to wall, complete all as specified and directed..

Uprooting completely natural vegetation /plants, stems of trees (upto 30 cm girth), grown up on wall, parapets or in roof and making good the damaged/disturbed portion and filling holes in cement mortar 1:3/PCC 1:2:4 to match with the existing surface, complete all as specified directed.

Demolition of brick masonry work built in cement mortar including all quoins, arches, pillars, staging etc. and removal of rubbish outside MOD land, complete all as specified and directed.

Material and labour for brickwork with using subclass 'B' old size bricks, straight or curved on plan exc 6m mean radius, built in cement mortar (1:6), complete all as specified and directed.

Taking down cement plaster on brick or stone walls or concrete surfaces, etc, any description including raking out joints, hacking for key, scrubbing down with water, etc and removal of rubbish outside MoD land, complete all as specified and directed. Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 Metre height building.

Material and labour for rendering 15 mm thick in cement mortar (1:4), using water proofing compound as per manufacturer's instructions, on concrete surfaces, finished even and smooth, complete all as specified and directed. Note :- 1.Supply only water proofing compound will be measured and paid for separately. 2.The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 Metre height building.

Material and labour for roughening of surfaces of old concrete slab by wiring brushing sweeping, cleaning and washing down to removal all loose dust etc. brushing neat neat cement slurry @ 3.00 kg/Sqm on roof surfaces, complete all as specified. Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 metre height building.

Material and labour for Raking out joints of old cement concrete tiles/brick tiles built in cement mortar, laid on roof average 10 mm deep and cleaning with wire brush and re-grouting and flush pointing the joints in cement mortar (1:3) mixed with 5% of crude oil by weight of cement to make it leak proof, complete all as specified. Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 Metre height building.

M&L for rendering 10 mm thick in cement mortar (1:3), mixed with WPC as per as per manufacturer's instruction @ 3% by weight of of cement as on concrete surfaces (such as top & sides of chajjas, beams, balcony ceiling etc.) finished even and smooth without using extra cement, complete all as specified and directed by Engineer - in -Charge. (WPC shall be measured and paid separately) Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15 Metre height of building.

Preparation of new wall surfaces plastered or unplastered and applying two coat of cement base paint, complete all as specified and directed. Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 Metre height building.

M&L for complete removal of existing surfaces of old painted walls & applying two coats of cement base paint all as specified. Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 Metre height building.

M&L for complete removal of old painted surfaces of ceiling including brooming down or steel wire brushing, scraping down smoke soot, moulds, mooss and efflorescent salts and trading oil and greasy spots etc and filling the cracks/holes with cement wall care putty and applying two coat of white wash complete all as specified and directed. Note: The rate quoted by contractor is deemed to be included necessary scaffolding and form work as required upto 15.00 Metre height building.

S&F in repairs 15mm bore dia Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and as directed.

S&F in repairs 20mm bore dia Gun-metal, globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixed complete all as specified and as directed.

Harbhajan Singh Sandhu and Sons

M/S V K Construction Co

M/S MATLOOB AHMED

MOHAMMAD RASHID

Baba Engineers and Contractors