Integrated Buildings & Structures

Section 12.2.5.6.1b of ASCE 7-10 thought ASCE 7-22 states that steel ordinary moment frames assigned to seismic design category D and E are permitted within light frame construction up to a heigh of 35' where neither the roof dead load nor the dead load of any floor above the base exceeds 35 psf. I often run into the same two questions regarding this section:

1. What is intended to be included in the 35 psf limit specified in the section and what are the differences between this floor dead load and the dead loads within the effective seismic  weight specified in ASCE 7 12.7.2?
2. When determining whether a building qualifies as light-frame construction, are the framing members of the floor (bar joists, beams, etc.) intended to be considered or is the note referring to just the steel ordinary moment frame and it's framing?