CPWD Analysis of Rates · Repairs to Buildings
Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3 mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufactured 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 350/300 N/5 cm. Tear strength in longitudinal and transverse direction as 60/80N. 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
- Item number
- 14.90.1
- Analysis basis
- Detail of cost for 30 sqm
- Priced inputs
- 9
- Derived rate
- ₹537.45 / sqm
Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 14.90.1 — Providing and laying APP (Atactic Polypropylene Polymer) modified prefabricated five layer, 3 mm thick water proofing membrane, black finished reinforced with glass fibre matt consisting of a coat of bitumen primer for bitumen membrane @ 0.40 litre/sqm by the same membrane manufactured 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 350/300 N/5 cm. Tear strength in longitudinal and transverse direction as 60/80N. 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 — is derived from 9 priced inputs for 30 sqm and works out to ₹537.45 per sqm after water charges, GST, CPOH and cess. The full build-up is below.
- A.P.P. modified 3 mm thick = 30 sqm
- Total = 33 sqm
- Add 10% for wastage - 3 sqm
| Code | Input | Unit | Quantity | Rate (INR) | Amount (INR) |
|---|---|---|---|---|---|
| 8204 | A.P.P. modified 3 mm thick membrance reinforced with glass fibre mattA.P.P. modified 3 mm thick membrane reinforced with glass fibre mattMaterial | sqm | 33 | 145.00 | 4,785.00 |
| 8206 | Bitumen primer for bitumen membranceBitumen primer for bitumen membraneMaterial | litre | 12 | 95.00 | 1,140.00 |
| 9977 | Carriage of bitumen membranceMaterial | L.S. | 7.8 | 2.27 | 17.71 |
| 1241 | Commercial LPG in cylinderMaterial | kg | 7 | 106.00 | 742.00 |
| 9999 | Preparing roof surface, cutting groovesMaterial | L.S. | 49.53 | 2.27 | 112.43 |
| 0159 | Skilled torch operator for laying tackLabour | day | 2.16 | 897.00 | 1,937.52 |
| 0130 | MistryLabour | day | 0.18 | 897.00 | 161.46 |
| 0114 | BeldarLabour | day | 3.24 | 736.00 | 2,384.64 |
| 9999 | Sundries, brushes, bitumen torch etcMaterial | L.S. | 23.4 | 2.27 | 53.12 |
- TOTAL
- 11,333.88
- Add 1 % Water charges on “W”
- 113.34
- TOTAL
- 11,447.22
- Add GST on “X” (multiplying factor 0.2127)
- 2,434.82
- TOTAL
- 13,882.04
- Add 15% CPOH on “Y”
- 2,082.31
- TOTAL
- 15,964.35
- Add Cess @ 1% on “Z”
- 159.64
- Cost for 30 sqm
- 16,123.99
- Cost for 1 sqm
- 537.47
- Say
- 537.45
From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1094. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.
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