Space between weep screed and foundation

What is the allowable space between the weep screed and the foundation. The home I am looking at has aprox 2".

http://ppc.ucsc.edu/standards/details/07000/07.6-21.pdf

What caused the weep screed to be that far out from the wall?

Probably a layout or framing issue if what I am reading is horizontal displacement.

Pictures would be appreciated.