Type of member | Deflection considered | Deflection limitation |
Flat roofs not supporting or attached to non-structural elements likely to be damaged by large deflections | Immediate deflection due to live load L | l/180 |
Floors not supporting or attached to non-structural elements likely to be damaged by large deflections | l/360 | |
Roof or floors construction supporting or attached to non-structural elements likely to be damaged by large deflections | The part of the total deflection occurring after attachment of non-structural elements (sum of the long-term deflection due to all sustained loads and the immediate deflection due to any additional live load) | l/480 |
Roof or floors construction supporting or attached to non-structural elements not likely to be damaged by large deflections | l/240 |