REPAIR TO ROOF TREATMENT AND OTHER CERTAIN B/R WORKS ETC AT SECTOR 31 CHANDIGARH UNDER GE (AF) CHANDIGARH

Material and labour, cleaning the new or old pastered or concrete surfaces and water proofing treatment of roof horizontal surfaces consisting as under:- (i) Remove existing water proofing treatment including brick/concrete tile ,Mud phuska etc.including removing the retrieved material to a place earmarked by civic body, Picking, sweeping clean and washing down with water to remove dust. While doing the treatment on existing roof, concrete should be thoroughly inspected for any significant distress. Such distress, if any repaired/rehabilitated and treated.Existing Pipes over roof should be realigned as directed by the Engineer-in -Charge. (ii) Providing and laying/fixing TPO (Thermoplastic Polyolefin) waterproofing membrane (min 1.2mm thickness) on prepared surface of roof & up to 300 mm of parapets and crumple joint including junction of roof and parapet. Method: TPO membrane is mechanically anchored in the roof deck using fasteners and washers, which are then overlapped with TPO membrane and heat welded. The overlap completely encapsulates the fastener, which is not exposed to any external weathering – ensuring no water, heat seeps into the insulated panel. The roof edges of the building are covered with TPO edge trims, mechanically anchored and heat welded with TPO on top – thus completely encapsulating the system, preventing any wind from blowing beneath the TPO or roof. Review attached methodology to understand the system. Providing and fixing Smartcare TPO Membrane Single PLY -FR is a high performance, heat weldable, thermoplastic polyolefin (TPO) sheet and sepration layer of geotextile of 80 to 100 GSM etc, manufactured, designed for waterproofing and heat shielding roofs of new and existing buildings. Contd/---

Contd item No 1 above/---- Top layer white & bottom layer grey with texture on top layer. Based on advanced polymer chemistry, the membrane is designed for weather resistance and fire protection, sustaining cycles of hot, cold, wet and dry environmental conditions, remaining flexible over years, maintaining its integrity and continuing to provide protection from water seepage and heat. High mechanical properties of the membrane ensure superior puncture resistance, breaking & tearing strength, while enabling excellent heat weld for fusion along the edges. High mechanical properties of the membrane ensure good puncture resistance, breaking & tearing strength, while enabling excellent heat weld for fusion along the edges.SC TPO membranes are further formulated to provide high solar reflective index,Cleaning the surface,roof padding where necessary and laying as per manufacturer’s instructions. Make: ASIAN PAINTS TPO or equivalent product of M/s MC Bauchemie / CIPY / SIKA / Pidilite Dr Fixit TPO membrane Notes : The work for Roof treatment shall also be included the following and the rates quoted by the bidders shall deemed to include the same :- (a) The work pertaining to Roof treatment shall be executed by the contractor as per MoU from authorised applicator through manufacturer of the materials after approval by the GE . (b) Sample patch of 10Sqm be prepared considering all the items of Roof treatment and shall be got approved from GE prior to carrying out further work. (c) The work shall be carried out completely as per manufacturer’s specifications and application methodology. Execution to be done with authorized trained/skilled applicator of manufacturer as per the technical guide lines laid by manufacturer. Contd/---

Contd item No 1 above/---- ((d) The Contractor shall submit ink Signed copy of "Memoradum of Understanding" (MOU) with at least one of the manufacturers mentioned in the contract for the approval of Garrison Engineer before commencement of work within one month of Acceptance of tender . If MOU not submitted within specified period penalty @ 5% shall be leived upon contractor and if further delay will continue than his contract will be liable to cancelled at his default as per the contract provision . (e) The defect liability period of water proofing treatment to RCC roof slab including sunken floors shall be 10 years and the contractor shall be responsible to keep the entire building(s) free from leakage/seepage for a period of 10 years after certified date of completion. The contractor shall obtain similar guarantee from the specialist firm engaged by him for the purpose to be given by after completion of Water Proofing work before payment . (f) An amount equal to 5.0% worked out on the cost of waterproofing treatment at contract rates towards guarantee shall be retained from the Final Bill as specified in P. S, Cluase no.4.3.2 of CA. (g) The quoted rate shall deemed to be included 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 and no any extra payment (h) Dismantled material should be removed manually by using stair case all as directed by Engineer-in-Charge. (j) Roof padding will be paid separately against respective item of BOQ. (k) All the material brought by the contractor for this work will be verified through a BOO convened by the GE office after receipt of intimation from Engineer -in Charge for convening the BOO or full quantity. Contd/---

Plain cement concrete (1:2:4) type B-1 using 20 mm graded mechanically crushed stone aggregates as in roof padding to maintain the required slope or to prepare gola etc icluding weathering slightly ropunded or chamfered angles and throating as directed including necessary form work in and including demolition of (un-reinforced) cement concrete of any description or as roof padding and coveringg concrete in any position not otherwise specifically provided for including removing the retrieved material to a place earmarked by civic body, complete all as specified and directed by Engineer-in-Charge. Note:- (i) Dismantled material should be removed manually using stair all as directed by Engineer-in-Charge.

Cement concrete tiles 25cm x 25cm x 22 mm thick machine pressed bedded on 15 mm thick screed bed in cement moratr 1:6,set jointed and pointed in neat cement slurry in floors, and cut and polished with grey cement and no pigment etc, complete all as specified and directed by Engineer-in-Charge. Note: Servicable Cement concrete tiles retrived from demolition of this item shall be used after proper cleaning and washing of old tiles under item No.04 below.

Cement concrete tiles 25cm x 25cm x 22 (Except Tile ) mm thick machine pressed bedded on 15 mm thick screed bed in cement moratr 1:6,set jointed and pointed in neat cement slurry in floors, and cut and polished with grey cement and no pigment etc, complete all as specified and directed by Engineer-in-Charge. Note: Servicable Cement concrete tiles retrived from demolition item no. 3 above and this items shall be used after proper cleaning and washing of old tiles.

Steel water tubing, 15 mm bore medium grade ISI Marked, galvanized with all fittings and fixed complete to walls, ceiling or laid in floors,cutting existing steel tubing & screwing, if required for alterations and additions in and including taking up or down existing unservicable tubing and connections, cleaning for re fixing or removal to store, complete all as specified and directed by Engineer-in-Charge. Note: Fittings & specials as required shall be provided by the contractor. Contractor's rate shall be deemed to include the cost of fittings provided.

Steel water tubing, 20 mm bore medium grade ISI Marked , galvanized with all fittings and fixed complete to walls, ceiling or laid in floors ,cutting existing steel tubing & screwing, if required for alterations and additions in and including taking up or down existing unservicable tubing and connections, cleaning for re fixing or removal to store, complete all as specified and directed by Engineer-in-Charge. Note: Fittings & specials as required shall be provided by the contractor. Contractor's rate shall be deemed to include the cost of fittings provided.

Rotational moulded PVC, tripple layered, water storage tanks of capacity 500 litre (cylindrical vertical with closed top), ISI Marked, hoisted and fixed in position, with & including all fittings such as GI tank nipple etc.in and including ball valve high pressure of PTMT with epoxy coated aluminium door and high density plastic ball screwed for 20mm dia iron pipe and fixed (minimum wieght 20mm ,210gms in and including dismantling PVC water tanks exc 250 ltr but n. exc 500 ltr capacity by disconnecting existing water connection and removal from site ,complete all as specified and directed by Engineer-in- Charge.

Rotational moulded PVC, tripple layered, water storage tanks of capacity 1000 litre (cylindrical vertical with closed top), ISI Marked, hoisted and fixed in position, with & including all fittings such as GI tank nipple etc. in and including ball valve high pressure of PTMT with epoxy coated aluminium door and high density plastic ball screwed for 20mm dia iron pipe and fixed (minimum wieght 20mm, 210gms in and including dismantling PVC water tanks exc 500 ltr but n. exc 1000 ltr capacity by disconnecting existing water connection and removal from site ,complete all as specified and directed by Engineer-in- Charge.