Rate analysis
Providing and laying six courses water proofing treatment with bitumen felt over roofs consisting of first, third and fifth course of blown bitumen 85/25 or 90/15 conforming to IS : 702 applied hot @ 1.45, 1.20 and 1.45 Kg per square metre of area respectively, second and fourth courses of roofing felt type 3 grade I conforming to IS : 1322 (Hessian based self finished bitumen felt) , sixth and final course of stone grit 6 mm and down size or pea sized gravel spread at 6 cubic decimeter per sqm including preparation of surface but excluding grading, complete.
DSR rate₹806.45as per item analysis
- Item code
- 22.9
- Sub-head
- SH 22 · WATER PROOFING
- Unit
- See analysis
- Source row
- 384
Cost components
| Code | Description | Unit | Quantity | Rate | Amount |
|---|---|---|---|---|---|
| Detail of cost for 30 sqm | |||||
| Blown or / and residual bitumen applied hot | |||||
| (1.45+1.20+1.45)x30=123kg | |||||
| 0313 | Blown type petroleum bitumen of penetration 85/25 of approved quality | tonne | 0.123 | ₹38,250.00 | ₹4,704.75 |
| Bitumen felt Type 3 grade 1 (hessian base self finished bitumen felt) = 60 sqm.+ Add for over lapping @ 10% = 6 sqm. Total =66 Sqm | |||||
| 0322 | Bitumen felt :Type 3 grade 1 | sqm | 66 | ₹80.00 | ₹5,280.00 |
| 2211 | Carriage of Tar bitumen | tonne | 0.301 | ₹0.00 | ₹0.00 |
| I/c Hession felt =0.123t+2.7x0.001x66=0.301t | |||||
| 1177 | Stone grit 6 mm and down size or pea sized gravel | cum | 0.18 | ₹985.00 | ₹177.30 |
| 30x6=180cudm | |||||
| 2202 | Carriage of Stone aggregate below 40 mm nominal size | cum | 0.18 | ₹0.00 | ₹0.00 |
| 0370 | Coal (steam) | quintal | 0.246 | ₹500.00 | ₹123.00 |
| = 2 quintals/t of bitumen i.e. 2x0.123=0.246q | |||||
| 2200 | Carriage of steam coal | tonne | 0.025 | ₹0.00 | ₹0.00 |
| 9999 | Praparing roof surface, sutting groove and making good etc. | L.S. | 134.55 | ₹2.27 | ₹305.43 |
| LABOUR | |||||
| 0131 | Painter | day | 3.24 | ₹816.00 | ₹2,643.84 |
| 0114 | Beldar | day | 4.86 | ₹736.00 | ₹3,576.96 |
| 0130 | Mistry | day | 0.2 | ₹897.00 | ₹179.40 |
| 9999 | Sundries, brushes etc. | L.S. | 6.76 | ₹2.27 | ₹15.35 |
Rate build-up
| TOTAL | ₹17,006.03 |
| Add 1 % Water charges on "W" | ₹170.06 |
| TOTAL | ₹17,176.09 |
| Add GST on "X" (multiplying factor 0.2127) | ₹3,653.35 |
| TOTAL | ₹20,829.44 |
| Add 15% CPOH on "Y" | ₹3,124.42 |
| TOTAL | ₹23,953.86 |
| Add Cess @ 1% on "Z" | ₹239.54 |
| Cost of 30.00 Sqm. | ₹24,193.40 |
| Cost of 1.00 Sqm. | ₹806.45 |
| Say | ₹806.45 |