Planning and Estimating Production Rates
| Task / Description | Slow | Ave | Fast | Units |
| Slate Roofs, Welsh Slate 3-5mm | - | 18.0 | - | m2/day |
| Slate Roofs, Cumbrian Slate 8-11mm | - | 8.5 | - | m2/day |
| Slate Roofs, Asbestos Slates | - | 36.0 | - | m2/day |
| Tiled Roofs, Concrete Tiles | - | 52.0 | - | m2/day |
| Tiled Roofs, Clay Pan Tiles | - | 26.0 | - | m2/day |