(1)
Except as permitted in this Subsection, foundations conforming to Sections 9.12. and 9.15. shall be provided for the support of carport and garage super-structures, including that portion beneath garage doors.
(2)
Detached garages of less than 55 m
(a)
wood mud sills, or
(b)
a concrete floor slab having a minimum thickness of not less than 100 mm.