Roof Live Loads
Steel buildings with regular flat, curved, and pitched roofs should be designed for the live loads specified in the table below:
Steel Building - Roof Live Loads*
Roof Slope |
Tributary Loaded Area in Square Feet for any Structural Member |
|
|
0 to 200 |
201 to 600 |
Over 600 |
Flat or rise less than 4 : 12
Arch of dome with rise less than 1/8 of span |
20 |
16 |
12 |
Rise 4 : 12 to less than 12 : 12
Arch or dome with rise 1/8 span to less than 3/8 span |
16 |
14 |
12 |
Rise 12 : 12 and greater
Arch or dome with rise 3/8 of span or greater |
12 |
12 |
12 |
|
|
Deflections - Due consideration shall be given to verticle deflections induced by live roof loads.
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