What's the CPWD DSR rate for APP membrane waterproofing?
Torch-applied APP (Atactic Polypropylene) modified bitumen membrane is the most common membrane waterproofing on Indian roofs. CPWD prices it as a complete in-situ multi-course treatment — primer, bonding coats and the membrane itself — per square metre.
The recipe
| Code | Description | Unit | Rate | Qty | Amount |
|---|---|---|---|---|---|
| 14.87 | Providing and laying in situ five course water proofing treatment with APP (Atactic Polypropylene) modified Polymeric memberane over roof consisting of first coat of bitumen primer @ 0.40Kg per sqm, 2nd & 4th courses of bonding material @ 1.20 kg/sqm, which shall consist of blown type bitumen of grade 85/25 conforming to IS : 702, 3rd layer of roofing membrane APP modified Polymeric membrane 2.0 mm thick of 3.00 Kg/ sqm weight consisting of five layers prefabricated with centre core as 100 micron HMHDPE film sandwiched on both sides with polymeric mix and the polymeric mix is protected on both side with 20 micron HMHDPE film. 5th, the top most layer shall be finished with brick tiles of class designation 10 grouted with cement mortar 1:3 (1 cement : 3 fine sand) mixed with 2% integral water proofing compound by weight of cement over a 12 mm layer of cement mortar 1:3 (1 cement : 3 fine sand) and finished neat (item of laying brick tiles shall be paid for separately).five-course treatment with 2.0 mm membrane | sqm | ₹454.80 | 1 | ₹454.80 |
| Total | ₹454.80 | ||||
Variations
Seven-course treatment (two membrane layers, 1.5 mm each)
| Code | Description | Unit | Rate | Qty | Amount |
|---|---|---|---|---|---|
| 14.86 | Providing and laying in situ seven course water proofing treatment with APP (Atactic poly-propylene) modified Polymeric memberane over roof consisting of first coat of bitumen primer @ 0.40 Kg per sqm, 2nd, 4th & 6th courses of bonding material @ 1.20 Kg/sqm, which shall consist of blown type bitumen of grade 85/25 conforming to IS : 702, 3rd and 5th layers of roofing membrane APP modified Polymeric membrane 1.5 mm thick of 2.25 Kg/sqm weight consisting of five layers prefabricated with centre core as 20 micron HMHDPE film sandwiched on both sides with polymeric mix and the polymeric mix is protected on both side with 20 micron HMHDPE film. 7th, the top most layer shall be finished with brick tiles of class designation 10 grouted with cement mortar 1:3 (1cement : 3 fine sand) mixed with 2% integral water proofing compound by weight of cement over a 12 mm layer of cement mortar 1:3 (1 cement : 3 fine sand) and finished neat (item of laying brick tiles shall be paid for separately). | sqm | ₹615 | 1 | ₹615 |
| Total | ₹615 | ||||
Notes
- The top protective brick-tile layer is described in the item but its laying is paid separately — read the description carefully when comparing quotes.
- For the traditional brick-bat coba treatment see the terrace waterproofing recipe.
- Rates shown are CPWD Delhi base rates from DSR 2021 (CPWD), edition 2025 — apply your local market / cost-index variation.
- Generated 2026-08-01.