Balanced Snow Load Height

[DTS419]

In Figure 7-8 of ASCE7-05, how do you determine h-sub-b, the height of the balanced snow load? Most localities just provide the ground snow load in terms of pounds per square foot, not a depth of snow fall. Is there a standard unit weight for snow that you are supposed to use, or is there some other way to determine h-sub-b?

 

[WillisV]

See Eqn. 7-3.