Roof rafter: allowable live load deflection = L / 240 = 0.800 in.
Roof girder: allowable live load deflection = L / 240 = 2.000 in.
Floor joist: allowable live load deflection = L / 360 = 0.667 in.
Girder: allowable live load deflection = L / 420 = 0.914 in.