16.03.070 Amend Section R506.2.4 Reinforcement support.

Section R506.2.4 is deleted and based upon Express Findings 1 and 3 in Section 16.03.030 is amended to read as follows:

R506.2.4 Reinforcement support. Where provided in slabs on ground, reinforcement shall be supported to remain in place from the center to upper one third of the slab for the duration of the concrete placement. As a minimum, and in all cases where a slab is to be placed inside of a building, the slab shall be reinforced with not less than six inches by six inches ten-gauge welded wire mesh, or an approved alternate.

In all slabs under habitable spaces, a minimum of 4 inches (102 mm) of crushed rock capillary water barrier shall be provided under a minimum 10 mil vapor retarder. The vapor barrier shall be protected by a minimum of 2 inches (51 mm) of sand or equivalent protection.