(1) The Oregon certified home inspector shall observe and describe visible structural components including:
(b) Floors and floor structure;
(c) Walls and wall structure;
(d) Columns or piers;
(e) Ceilings and ceiling structure; and
(f) Roofs and roof structure.
(2) The Oregon certified home inspector shall:
(a) Probe or sound structural components where deterioration is suspected, except where probing would damage any finished surface;