SPECIAL REPAIRS TO ROOF TREATMENT IN CERTAIN OTM BUILDING AT AFA HYDERABAD

Amount

Taking down existing tar felt, water proofing membrane etc of any description, any type including loose plastering / screed , padding concreate etc if any and removing all loose particles with wire brushes, removing bitumen coating over original RCC slab by grinding, picking, , grinding of mother concrete slab to make surface smooth suitable for applying PU waterproofing coat as per manufacturer's instructions, including removal of debries to a distance exceeding 1.5 km but not exceeding 5KM complete all as specified and as directed.

Dismantling of Stone slabs and tiles laid bedded and pointed in any mortar of any description or thickness in floors, aprons etc. complete all as specified and directed.

Demolition of Cement concrete (unreinforced) of any description and in any position on roofs including removal of debries to a distance exceeding 1.5 Km but not exceeding 5 Km complete all asd specified and directed.

Taking down cement or cement lime plaster on brick or stone walls, etc. including raking out joints, hacking for key, scrubbing down with water, etc all as specified and directed.

M&L 15mm thick rendering in cement mortar 1:4 on stone masonry wall surfaces or on other than fair faces of brick masonary finished fair and even mixed with Liquid water proofing compound of FOSROC Nitobond SBR at 2% by weight of cement or with equivalent products of Pidilite, Dr fixit Super Latex / Asian paints/ M/s M C Bauchemic / CIPY/ SIKA / Thermax / STP as approved by GE, to be applied as per manufacturer’s instructions.(Supply only of admixure will be measured and paid separely).

M&L for Plain cement concrete 1:1.5:3 type B-0 using 12.5 mm graded stone aggregate as in as in covings, roof kerbs, screed over roof either full or in patches as per the requirement, including fininshing of exposed surface even and smooth without using extra cement, admixed with Liquid water proofing compound of FOSROC Nitobond SBR at 2% by weight of cement or with equivalent products of Pidilite, Dr fixit Super Latex / Asian paints/ M/s M C Bauchemic / CIPY/ SIKA / Thermax / STP as approved by GE, to be applied as per manufacturer’s instructions.(Supply only of admixure will be measured and paid separely).

Supply only of Liquid water proofing compound FOSROC Nitobond SBR at 2% by weight of cement or with equivalent products of Pidilite, Dr fixit Super Latex / Asian paints/ M/s M C Bauchemic / CIPY/ SIKA / Thermax / STP as approved by GE.

ROOF TREATMENT FOR IN-ACCESSIBLE ROOF :- M&L for Roof treatment for in-accessible roof as under: -(i) Preparation of surfaces by sweeping cleaning and washing down with water to remove dust and loose particles over RCC slab for providing roof treatment.(ii) Apply polyurethane waterproofing coating on prepared concrete surface of roof slab & up to 300 mm of parapets and crumple joint including junction of roof and parapet whereever applicable. Any minor cracks in the screed should be sealed with grouting and crack filling material or epoxy sealant filler. This stage shall be passed by the GE. Roof surface shall be left without any further treatment.(iii) Method: Cleaning the surface and applying FOSROC Nitoproof 725 (min 0.8mm dft) over a priming coat of Nitoproof WB Primer or equivalent product of Asian paints , M/s M C Bauchemic / CIPY/ SIKA / Pidilite / Dr Fixit / Thermax / STP as approved by GE, applied as per manufacturer’s instructions.(iv) The work shall be carried out complete as per manufacturer’s specifications and application methodology. Execution to be done with authorised trained / skilled applicator of manufacturer as per technical guidance laid by manufacturer. Company guarantee to be given by contractor after completion of water proofing work before payment.(v) Ponding test for 72 hrs to be carried out and no leakage / seepage shall be ensured. Any rectification to be done at the cost of contractor repeating above steps of application to the entire satisfaction of Engineer-in-Charge. Note: (i) The rate quoted by the contractor shall be deemed include dismantling and refixing of PVC water tanks hoisted on roof, taking down and refixing of water tubing and any other fittings , re-alignment of lightening arrester strips etc if any on roof as required and nothing extra will be paid.

ROOF TREATMENT FOR ACCESSIBLE ROOF M&L for Roof treatment for accessible roof as under:(i) Preparation of surfaces by sweeping cleaning and washing down with water to remove dust and loose particles over RCC slab for providing roof treatment.(ii) Apply polyurethane waterproofing coating on prepared concrete surface of roof slab & up to 300 mm of parapets and crumple joint including junction of roof and parapet. Any minor cracks in the screed should be sealed with grouting and crack filling material or epoxy sealant filler. This stage shall be passed by the GE.(iii) Method: Cleaning the surface and applying FOSROC Nitoproof 650PU over a priming coat of FOSROC Nitoproof WB Primer or equivalent product of Asian paints , M/s M C Bauchemic / CIPY/ SIKA / Pidilite / Dr Fixit / Thermax / STP applied as per manufacturer’s instructions.(iv) Ponding test for 72 hrs to be carried out and no leakage / seepage shall be ensured. Any rectification to be done at the cost of contractor repeating above steps of application to the entire satisfaction of Engineer-in-Charge.(v) Further provide a polypropylene / polester , nonwoven geotextile fabric of 150 gsm followed by cement screed 15mm in CM (1:4) in slope and Machine cut kota stone tiles / slabs 20-25mm thick (except Kota stone) are laid. While laying tiles, care should be taken to see that joints between tiles are kept minimum and joints are thoroughly filled with FOSROC Nitotile grout polymer based joint mortor or equivalant ptroducts of Asian Paints/ / M/s M C Bauchemic / CIPY/ SIKA / Pidilite Dr fixit / Thermax / STP as approved by GE, applied as per manufacturer's instructions (vi) The work shall be carried out complete as per manufacturer’s specifications and application methodology. Execution to be done with authorised trained / skilled applicator of manufacturer as per technical guidance laid by manufacturer. Company guarantee to be given by contractor after completion of water proofing work before payment. Note: (i) The rate quoted by the contractor shall be deemed include dismantling and refixing of PVC water tanks hoisted on roof, taking down and refixing of water tubing and any other fittings , re-alignment of lightening arrester strips etc if any on roof as required and nothing extra will be paid. Note: (i) The rate quoted by the contractor shall be included for dismantling and refixing of PVC water tanks hoisted on roof, taking down and refixing of water tubing and any other fittings on roof as required and no extra shall be paid.(ii) Supply only of Kota stone slabs will be measured and paid serately under respective item.

M&L for water proofing treament to walls and on Chajjas / Sunshades as under:- (i) Preparation of surfaces of walls and on chajjas / sunshades over walls above chajja up to 900 mm and up to 600 mm on either side of chajja width, picking, sweeping, cleaning and washing down with water to remove all loose particles, dust etc complete all as directed by Engineer-in-charge. Surface shall be moist by sprinkling water.(ii) Applying FOSROC Brushbond Wall guard / roofguard minimum 3 layers or equivalent product of Asian Paints, / M/s MC Bauchemie / CIPY/ SIKA / Pidilite Dr Fixit/ Thermax / STP as per the manufacturer’s instructions.

Supply only of 20-25mm thick prepolished machine cut kota stone slabs /tiles of size not less than 450x450 mm size.

M/s Amit Associates (BID ID -3119276)

Saiansh Associates (BID ID -3119418)

S J REDDY (BID ID -3105098)

NS Enterprises (BID ID -3116517)

VACON INFRASTRUCTURES (BID ID -3105145)

MAA ENGINEERING SERVICERS (BID ID -3119091)

shree bhavani constructions (BID ID -3104352)