ibc 2000 deflection criteria for wood trusses
 

ibc 2000 deflection criteria for wood trusses
from what i have read, when you use a deflection criteria for live load deflection to be less than l/360fff">, ibc2000 requires you to use l/240fff"> as the total load criterion. i know for ibc2003fff"> this is true. i was wondering if ibc 2000fff"> also mandates this combination or can we use l/360 and l/180 instead?

yes.
when deciding deflection criteria, consider what is attached to the member that is deflecting and what use the the member serves.