CPWD Analysis of Rates · Water Proofing
Providing and laying four courses water proofing treatment with bitumen felt over roofs consisting of first and third courses of blown bitumen 85/25 or 90/15 conforming to IS : 702 applied hot @ 1.45 Kg per square metre of area for each course, second course of roofing felt type 3 grade-I (hessian based self finished bitumen felt) and fourth and final course of stone grit 6 mm and down size or pea sized gravel spread at 6 cubic decimeter per square metre, including preparation of surface but excluding grading complete with
Bitumen felt (hessian base) type 3 grade I conforming to IS : 1322
- Item number
- 22.8.1
- Analysis basis
- Detail of cost for 30 sqm
- Priced inputs
- 9
- Derived rate
- ₹515.05 / Sqm
Under the CPWD Delhi Analysis of Rates 2023 (Civil), item 22.8.1 — Providing and laying four courses water proofing treatment with bitumen felt over roofs consisting of first and third courses of blown bitumen 85/25 or 90/15 conforming to IS : 702 applied hot @ 1.45 Kg per square metre of area for each course, second course of roofing felt type 3 grade-I (hessian based self finished bitumen felt) and fourth and final course of stone grit 6 mm and down size or pea sized gravel spread at 6 cubic decimeter per square metre, including preparation of surface but excluding grading complete with : Bitumen felt (hessian base) type 3 grade I conforming to IS : 1322 — is derived from 9 priced inputs for 30 sqm and works out to ₹515.05 per sqm after water charges, GST, CPOH and cess. The full build-up is below.
- Blown or / and residual bitumen applied hot =
- 2x1.45x30 = 87 kg
- Hession felt type 3 Grade I (hessian base self
- finished bitumen felt) = 30sqm + Add for over
- lapping @ 10% = 3 sqm. Total = 33 Sqm
- 30x6=180 cudm
- I/c Hession felt =0.087t+2.7x0.001x33=0.176t
- = 2 quintals/t of bitumen i.e. 2x0.087 =0.174q
| Code | Input | Unit | Quantity | Rate (INR) | Amount (INR) |
|---|---|---|---|---|---|
| 0313 | Blown type petroleum bitumen of penetration 85/25 of approved qualityMaterial | tonne | 0.087 | 38,250.00 | 3,327.75 |
| 0322 | Bitumen felt :Type 3 grade 1Material | sqm | 33 | 80.00 | 2,640.00 |
| 1177 | Stone grit 6 mm and down size or pea sized gravelMaterial | cum | 0.18 | 985.00 | 177.30 |
| 0370 | Coal (steam)Material | quintal | 0.174 | 500.00 | 87.00 |
| 9999 | Praparing roof surface, sutting groove and making good etcMaterial | L.S. | 134.55 | 2.27 | 305.43 |
| 0131 | PainterLabour | day | 2.16 | 816.00 | 1,762.56 |
| 0114 | BeldarLabour | day | 3.24 | 736.00 | 2,384.64 |
| 0130 | MistryLabour | day | 0.18 | 897.00 | 161.46 |
| 9999 | Sundries, brushes etc.Material | L.S. | 6.76 | 2.27 | 15.35 |
- TOTAL
- 10,861.49
- Add 1 % Water charges on “W”
- 108.61
- TOTAL
- 10,970.10
- Add GST on “X” (multiplying factor 0.2127)
- 2,333.34
- TOTAL
- 13,303.44
- Add 15% CPOH on “Y”
- 1,995.52
- TOTAL
- 15,298.96
- Add Cess @ 1% on “Z”
- 152.99
- Cost of 30.00 Sqm.
- 15,451.95
- Cost of 1.00 Sqm.
- 515.07
- Say
- 515.05
From the CPWD Delhi Analysis of Rates 2023 (Civil), Volumes I & II, printed page 1852. Reference only — CPWD amends rates through correction slips between editions, so verify against the official source before pricing a bid.
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