Steve:
The Twp I work in (AHJ) and LK does EC work in has numerous houses like this.
Based on the pics above, comparing to what I physically see here....
The ceiling in the carport/garage looks like it could be plywood.
The vinyl siding looks recently 'new'; boxed out around the meter pan, and conduit.
4" sq box w 2 sw box looks new, & it's mounted 'on' the siding.
Again, where I am, I would guess the 'front' & 'side' & 'back' were 'enclosed; the house sided, and maybe re-roofed, as there are no visable seams.
John
