Replacement of existing GI sheet with Sandwich PUF panel at the terrace of Structural Engineering Lab building at IIT Madras

Amount

Civil work

Dismantling roofing including ridges, hips,valleys and guttersetc.,andstacking the material within 50 metres lead f:G.S. Sheet

Deduct cost of old GI Sheet

Supplying and installation of Sandwich PUF panel / block of 80mm thick confirm to best International / Indian Standards. Density : 40 +2 Kg / M 3 (PU) Closed cell content : 90 – 95% Temperature range : - 100o C to + 90 o C Water absorption : < 1% K factor : 0.22 U factor : 0.019 – 0.022 Self Extinguishing : As per ASTM D 1692 The materials, both PUF block and Panel should be fire resistant and should have excellent self-extinguishing characteristics. The bidder has to specify the fire resistant characteristics of the material. Both side of panel elements are made up of 0.5 mm thick hot deep galvanized and pre-painted steel sheets. The color coating should be of approved color at least 25 micron silicon polyester on 120 gms / m 2 of Zinc coating. The steel sheets should have formed grooves to provide extra strength as well as to enhance the appearance of cladding. The panel should be manufactured by pressure injection of CFC free Poly urethrene foam at 40 +2 Kg/m 3 density, in between the outer and inner steel sheet surfaces. The wall panels either be complete with tongue and groove joint together or Cam Lock joint with flushing. The Cam Locks should be of G.I /PVC material and minimum of 0.7 mm thick. The rate inclusive of channel and all necssary fittings required to provid in top and bottom of the partition to support the PUF panel etc., complete. The bidder should provide the manufacturing certificate conforming to CFC free method of manufacturing and paint & zinc coating thickness. The rate inclusive of necessary fixters for installation of partition, selaing the joints with PU/ Silicon selant etc., complete.

Providing and fixing double scaffolding system (cup lock type) on the exterior side, up to seven story height made with 40 mm dia M.S. tube 1.5 m centre to centre, horizontal & vertical tubes joining with cup & lock system with M.S. tubes, M.S. tube challies, M.S. clamps and M.S. staircase system in the scaffolding for working platform etc. and maintaining it in a serviceable condition for the required duration as approved and removing it there after .The scaffolding system shall be stiffened with bracings, runners, connection with the building etc wherever required for inspection of work at required locations with essential safety features for the workmen etc. complete as per directions and approval of Engineer- in-charge .The elevational area of the scaffolding shall be measured for payment purpose .The payment will be made once irrespective of duration of scaffolding.

Wall painting using water based enamel paint: (two or more coats excluding primer coat and complete scraping but including surface preparation like removal of loose paint residuals, damaged plastering, repairs to plaster and making good the wall surface etc wherever required) Applying water based enamel paint of approved colour, make, brand and product at the approved rate of surface coverage of painting as per Annexure A.1.2. The water based enamel paint shall be applied over dry surface after complete scraping and removal of all loose or defective paint or powdery residue using mechanical methods with Zero dust vaccum technology followed with sealing the surface with a coat of approved primer before application of top coat of water based enamel paint. The contractor shall also carryout necessary surface preparation including removal of loose plastering, patch plastering, crack filling, micro- concreting, application of damp proof coating and making good the wall surface etc wherever required before applying primer coat. The contractor should ensure complete covering of floors using tarpaulin / plastic sheet while taking up the work. The work shall be executed as per the detailed specifications and special conditions mentioned in the Annexure 1. The rate quoted shall be inclusive of charges towards all labour, material, transport, scaffolding, safety arrangements, Personal Protective Equipments (PPE), tools and plants etc.

Finishing walls with 100% Premium acrylic emulsion paint having VOC less than 50 gm/litre and UV resistance as per IS 15489:2004, Alkali & fungal resistance, dirt resistance exterior paint of required shade (Company Depot Tinted) with silicon additives.New work (Two or more coats applied @ 1.43 litre/ 10 sqm. Over and including priming coat of exterior primer applied @ 0.90 litre/10 sqm.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade : Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture

M/S. NAVEEN CONSTRUCTIONS (BID ID -759039)

P AND C PROJECTS PRIVATE LIMITED (BID ID -759639)

SRI VENKATESWARA DECORS (BID ID -759796)