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| 1 | Removing existing APP by manually means including disposal with in 50 meter lead as per direction of Engineer In-charge at site. |
| 2 | Removal of uneven loose/projected surface on the substrate (lime/cement concrete) of any grade and disposal of debris / waste in the colony at desingnated place as per direction of engineer inchagre |
| 3 | Grading roof for water proofing treatment with Cement mortar 1:4 (1cement : 4 coarse sand) |
| 4 | Providing, mixing and applying bonding coat of approved adhesive on chipped portion of RCC as per specifications and direction of Engineer-In-charge complete in all respect. SBR Polymer (@10% of cement weight) modified cementitious bond coat @ 2.2 kg cement per sqm of surface area mixed with specified proportion of approved polymer |
| 5 | Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane of approved make STP/Sika/Asian or equivalent make, black finished reinforced with non-woven polyester matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufacture of density at 25°C, 0.87-0.89 kg/ litre and viscocity 70-160 cps. Over the primer coat the layer of membrane shall be laid using Butane Torch and sealing all joints etc, and preparing the surface complete. The vital physical and chemical parameters of the membrane shall be as under : Joint strength in longitudinal and transverse direction at 23°C as 650/ 450N/ 5cm. Tear strength in longitudinal and transverse direction as 300/250N. Softening point of membrane not less than 150°C. Cold flexibility shall be upto -2°C when tested in accordance with ASTM, D - 5147. The laying of membrane shall be got done through the authorised applicator of the manufacturer of membrane :3 mm thick |
| 6 | Applying two coat of bituminous aluminium paint (super silver shield of Dr. Fixit/STP/Sika or equivalent) on the existing APP sheet roof treatment by using appropriate brush manually including cleaning/ dusting of existing APP sheet surface etc. complete in two successive coats applied @ 0.25 litre per sqm. |
| 7 | Repairs to plaster of thickness 12 mm to 20 mm in patches of area 2.5 sq.meters and under, including cutting the patch in proper shape, raking out joints and preparing and plastering the surface of the walls complete, including disposal of rubbish to the dumping ground, all complete as per direction of Engineer-in-Charge : With cement mortar 1:4 (1 cement : 4 fine sand) |
| 8 | Providing Tractor trolly for carriage of malba, debrise, soil, and dismantlled materials / APP from construction site to outside of institute and out site area of nagar nigum Roorkee including loading unloadingcomplete work in all respect as per direction of Engineer-in-charge. |
| 9 | Providing gola 75x75 mm in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 10 mm and down gauge), including finishing with cement mortar 1:3 (1 cement : 3 fine sand) as per standard design :In 75x75 mm deep chase |
| 10 | Providing and fixing ball valve (brass) of approved quality, High or low pressure, with plastic floats complete : 15 mm nominal bore |
| 11 | Providing and fixing brass stop cock of approved quality :15 mm nominal bore |
| 12 | Providing and fixing G.I. Union in G.I. pipe including cutting and threading the pipe and making long screws etc. complete :15 mm nominal bore |
| 13 | Detachment of 500 / 1000 litre capacity PVC over head tank on the roof with water supply pipe line & fitting and refixing the same place after completion of water proofing treatment(Labour only). |
