Design Loads
To determine the design load for a particular building, first establish the relevant case i.e. roof with access, roof without access or walls. Then for the relevant case, the design load to be used is the largest of the loading situations (windload, snowload, distributed or concentrated load) given in the table:
|
| Wind load (imposed or suction) | Snow load (Uniformly distributed or redistributed) | Uniformly distributed load (kN/m2) | Concentrated load (kN) |
| Roof with access | Determined from BS 6399 Part 2 | Determined from BS 6399 Part 3 | 1.5 | 1.8 |
| Roofs without access | Determined from BS 6399 Part 2 | Determined from BS 6399 Part 3 | 0.6 | 0.9 |
| Walls | Determined from BS 6399 Part 2 | - | - | - |
Note 1. The imposed loads are considered to act at the same time as dead load, but not at the same time as each other.
Note 2. For composite panels where loads are not considered to be concentrated, the uniformly distributed load (column 3) should be used in place of the concentrated load (column 4)
Note 3. Agricultural buildings are considered in BS 5502: Part 22 (2003)
