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ORDINANCE 2012-036 5. Concrete slabs used as parking pads, enclosure floors, landings decks walkways, patios and similar nonstructural uses in coastal high hazard areas (Zone V1. In coastal high hazard areas, concrete slabs used as parking pads, enclosure floors, landings, decks, walkways,patios and similar nonstructural uses are permitted beneath or adjacent to buildings and structures provided the concrete slabs are designed and constructed to be: a. Structurally independent of the foundation system of the building or structure; b. Frangible and not reinforced, so as to minimize debris during flooding that is capable of causing significant damage to any structure; and c. Have a maximum slab thickness of not more than four (4) inches. 6. Decks and patios in coastal high hazard areas (Zone V). In addition to the requirements of the Florida Building Code, decks and patios in coastal high hazard areas shall be located, designed, and constructed in compliance with the following_ a. A deck that is structurally attached to a building or structure shall have the bottom of the lowest horizontal structural member at or above the design flood elevation and any supporting members that extend below the design flood elevation shall comply with the foundation requirements that apply to the building or structure, which shall be designed to accommodate any increased loads resulting from the attached deck. b. A deck or patio that is located below the design flood elevation shall be structurally independent from buildings or structures and their foundation systems, and shall be designed and constructed either to remain intact and in place during design flood conditions or to break apart into small pieces to minimize debris during flooding that is capable of causing structural damage to the building or structure or to adjacent buildings and structures. c. A deck or patio that has a vertical thickness of more than twelve (12) inches or that is constructed with more than the minimum amount of fill necessary for site drainage shall not be approved unless an analysis prepared by a qualified registered design professional demonstrates no harmful diversion of floodwaters or wave runup and wave reflection that would increase damage to the building or structure or to adjacent buildings and structures. d. A deck or patio that has a vertical thickness of twelve (12) inches or less and that is at natural grade or on nonstructural fill material that is Underline: Additions to Ordinance Deleted Text from Existing Ordinance 36 C:\Documents and Settings\tlister\Desktop\Revised IRC Flood Protect Ord final 10-26-12.rtf