IBC 2018 Deflection Limits

[StructuralAddict]

In Table 1604.3 of IBC 2018:

1. The deflection limit on the wind load, I assume that it means [vertical deflection in roof members] and [horizontal deflection in exterior walls]. Is my understanding correct?

2. Regarding footnote (d), could someone explain what it means? It's not clear to me.

Thanks a lot.

 

[driftLimiter]

1. The deflection limits are expressed in terms of the member span length L, the deflection that is being limited is perpendicular to L.

2. This is a pretty loaded footnote but it seems pretty clear to me is there something specific about it you don't understand?

 

[StructuralAddict]

Thank you driftLimiter.

1- So this means that the deflection limits in the table are perpendicular to the applied load along the span. Correct?

2- The table heading shows D+L at the last column. In footnote d, it includes the roof live load (<=20 psf) as well (D+L+Lr). So, does this mean that the table heading should be (D+L+Lr)?
Also, why should we consider the creep component of the long-term dead load? Why not considering the full dead load?
Thanks!