SPECIAL REPAIR TO CENTRAL AC PLANT OF DBM 12 AND 13 AT NAD KARANJA

Complete removal of existing water proofing treatment of any description and in any position including PCC padding any thickness and cleaning, wire brushing, watering & removal of debris outside MOD Note :- 1. Taking down earthing strips incl insulators from roof for treatment and re-fixing of same with existing specification in the same |position after laid APP membrance including replacement of broken| |insulators, PVC rawl plus & screws etc are deemed to be inclusive of rate quoted by the contractor. 2. Unit rate quoted shall also include for removal of PVC water storage| |tank wherever existing carefully and refixing at the same or otherl position after completion of roof repair work.

Material and Labour Cutting out cracks to V-section in existing roofs or terracing, |cleaning out and filling solidly with a hot mixture of bitumen and clean dry sand 1:1 (by weight)

Roughening surfaces Of old concrete floors by picking, sweeping clean |and washing down with waters to remove dusts etc. complete all as specified

Brushing neat cement slurry with 3kg/sqm all as specified

Material and Labour PCC 1:2:4 type B0 using 12.5 mm graded stone aggregate as in |concrete padding laid to required slope incl finishing the concrete surface fair and even without using extra cement complete all as specified and as directed.

|Material and Labour for 10 mm thick screed bed or bedding layer of mortar in cement| mortar (1:4) for laying roof finish as padding finished with WPC 3% by |weight of total cement, complete all as specified and directed NOTE :- Integral WPC shall be measured and paid separately

Apply oil bound bitumen primer @ 0.40 Litre / Sqm manufactured by the same agency as that of APP with density of 0.87 to 0.89 Kg / Litre at 25 |degree Celsius on the prepared dry roof surface.

Material and Labour APP based polymeric membrane min weighting 3kg/sqm and minimum 3mm thick reinforced with polyster non woven fabric(wt not less than 150 gms/sqm laid on primed surfaces by forced application method all as specified.

Material and Labour for preparation of new surfaces of any description not otherwise described over 10cm width or girth and applying two coats of solar reflective aluminium paint @ 0.10 kg/sqm membrane surfaces.

Supply only liquid water proofing compound as pedicrete URP mix with cement concrete/ cement plaster as per manufacture instruction all as directed by Engr-in-Charge. Make : DR. FIXIT PIDE PROOF LW, FOSROC