IS 1200:2000 (Part 9) is the Indian Standard (BIS) for method of measurement of building and civil engineering works, part 9: roof covering (including cladding). This part of IS 1200 covers the method of measurement for various types of roof coverings and claddings, including corrugated sheets, tiles, and thatch. It is utilized by quantity surveyors and billing engineers to standardize the calculation of roofing areas, assess deductions for openings, and measure accessories like ridges and valleys for estimating and billing purposes.
Method of measurement of building and civil engineering works, Part 9: roof covering (including cladding)
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
| Parameter | IS Value | International | Source |
|---|---|---|---|
| Standard Lead in Base Rate | 30 metres included in excavation item. | Not applicable. Haulage is measured separately from excavation. | CESMM4 |
| Standard Lift in Base Rate | 1.5 metres included in excavation item. | Not applicable. Excavation is often measured in depth ranges (e.g., 0-2m, 2-4m). | CESMM4 |
| Bulk Excavation Unit | Cubic Metre (m³) | Cubic Metre (m³) | CESMM4 / NRM 2 |
| Surface Dressing Unit | Square Metre (m²) | Square Metre (m²) | NRM 2 |
| Deduction for Voids (e.g., pipes) | No deduction for voids up to 0.1 m² in cross-section. | Deductions made for voids > 0.05 m³ in volume (not cross-section). | NRM 2 |
| Measurement of Excavation | Net dimensions of the final void created. | Net dimensions of the final void created. | CESMM4 |
| Measurement of Filling | Net volume of the space to be filled (final compacted volume). | Net volume of the space to be filled (final compacted volume). | NRM 2 |