Deflection Limits: roof-nonplaster-ceiling
Serviceability deflection and drift limits per IBC 2021 Table 1604.3 and ASCE 7-22 — floor beams, roof members, exterior walls, interior partitions, and story drift for seismic and wind
| member type | load case | applicable load combination | limit denominator (dimensionless) | limit description | limit ratio | notes |
|---|---|---|---|---|---|---|
| roof-nonplaster-ceiling | live | L or Lr | 240 | Roof supporting non-plaster ceiling — live load | L/240 | Span/240 under roof live load |
| roof-nonplaster-ceiling | total | D + L | 180 | Roof supporting non-plaster ceiling — dead plus live | L/180 | Span/180 |
| roof-nonplaster-ceiling | wind-snow | S or W | 240 | Roof supporting non-plaster ceiling — wind or snow | L/240 | Span/240 |
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