(1)
Except where it can be shown to be unnecessary, the ingress of water into a crawl space shall be controlled by grading or drainage.
(2)
Drainage of foundation walls shall conform to Article 9.14.2.1.
(3)
Drainage of the ground cover or floor-on-ground in the crawl space shall conform to Subsection 9.16.3.
(4)
Drains shall conform to Section 9.14.