Rate analysis
Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer 3 mm thick water proofing membrane, 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 :
DSR rate₹560.95as per item analysis
3 mm thick
- Item code
- 14.91.1
- Sub-head
- SH 14 · REPAIRS TO BUILDING
- Unit
- See analysis
- Source row
- 2598
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Detail of cost for 30 sqm | |||||
| MATERIAL | |||||
| A.P.P. modified 3 mm thick - 30 sqm | |||||
| Add 10% for wastage - 3 sqm | |||||
| Total = 33 sqm | |||||
| 8205 | A.P.P. modified 3 mm thick membrance reinforced with polyster matt | sqm | 33 | ₹160.00 | ₹5,280.00 |
| 8206 | Bitumen primer for bitumen membrance | litre | 12 | ₹95.00 | ₹1,140.00 |
| 2211 | Carriage of Tar bitumen | tonne | 0.012 | ₹0.00 | ₹0.00 |
| 9977 | Carriage of bitumen membrance | L.S. | 7.8 | ₹2.27 | ₹17.71 |
| Fuel | |||||
| 1241 | Commercial LPG in cylinder | kg | 7 | ₹106.00 | ₹742.00 |
| 9999 | Preparing roof surface, cutting grooves | L.S. | 49.53 | ₹2.27 | ₹112.43 |
| LABOUR | |||||
| 0159 | Skilled torch operator for laying tack | day | 2.16 | ₹897.00 | ₹1,937.52 |
| 0130 | Mistry | day | 0.18 | ₹897.00 | ₹161.46 |
| 0114 | Beldar | day | 3.24 | ₹736.00 | ₹2,384.64 |
| 9999 | Sundries, brushes, bitumen torch etc | L.S. | 23.4 | ₹2.27 | ₹53.12 |
Rate build-up
| TOTAL | ₹11,828.88 |
| Add 1 % Water charges on "W" | ₹118.29 |
| TOTAL | ₹11,947.17 |
| Add GST on "X" (multiplying factor 0.2127) | ₹2,541.16 |
| TOTAL | ₹14,488.33 |
| Add 15% CPOH on "Y" | ₹2,173.25 |
| TOTAL | ₹16,661.58 |
| Add Cess @ 1% on "Z" | ₹166.62 |
| Cost for 30 sqm | ₹16,828.20 |
| Cost for 1 sqm | ₹560.94 |
| Say | ₹560.95 |