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1816.1.6 - 1819.2.1 1816.1.6 If soil treatment is used for subterranean termite prevention, chemical soil treatments shall also be applied under all exterior concrete or grade within 1 foot (305 mm) of the primary structure sidewalls. Also, a vertical chemical barrier shall be applied promptly after construction is com- pleted, including initial landscaping and irrigation/sprinkler installation. Any soil disturbed after the chemical vertical barrier is applied shall be promptly retreated. 1816.1. 7 If a registered termiticide formulated and regis- tered as a bait system is used for subterranean termite pre- vention, Sections 1816. l. 1 through 1816, l.6 do not apply; however, a signed contract assuring the installation, main- tenance and monitoring of the baiting system for a mini- mum of five years from the issue of the Certificate of Occupancy shall be provided to the building official prior to the pouring of the slab, and the system must be installed prior to final building approval. If the baiting system directions for use require a monitoring phase prior to installation of the pesticide active ingredient, the installa- tion of the monitoring phase components shall be deemed to constitute installation of the system. 1816.1.8 If a registered termiticide formulated and regis- tered as a wood treatment is used for subterranean termite prevention, Sections 1816.1.1 through l816,1.6 do not apply. Application of the wood treatment termiticide shall be as required by label directions for use, and must be completed prior to final building approval. 1816.2 Penetration. Protective sleeves around metallic pip- ing penetrating concrete slab-on-grade t100rs shall not be of 1- cellulose-containing materials and, if soil treatment is used for subterranean termite protection, shall receive application of a termiticide in annular space between sleeve and pipe. SECTION 1817 HIGH VELOCITY HURRICANE ZONES EXCAVATIONS 1817.1 General. Until provisions for permanent support have - been made, all excavations shall be properly guarded and pro- tected so as to prevent them from becoming dangerous to life and property and shall be sheet piled, braced and/or shored, where necessary, to prevent the adjoining earth from caving in; such protection to be provided by the person causing the excavation to be made. All excavations shall comply with the minimum requirements of Florida Statute 553_60, "Trench Safety Act," and 29-CFR1926-650 (P) "Occupational Safety - and Health Administration Excavation Safety Act" No exca- vation, tor any purpose, shall extend within 1 '-0" of the angle of repose of any soil bearing tooting or toundation unless such tooting or toundation is first properly underpinned or protect- ed against settlement. 1817.2 Permanent excavations. No pennanent excavation - shall be made nor shall any construction excavations be left on any lot that will endanger adjoining property or buildings or be a menace to public health or safety, Any such excava- tions made or maintained shall be properly drained and such drainage provisions shall function properly as long as the excavation exists. Permanent excavations shall have retain- ing walls of steel, masonry, concrete or similar approved 18.22 material of sufficient strength to retain the embankment together with any surcharged loads. 1817.3 Enforcement. Where, in the opinion of the building official, an unsafe condition may result or damage may occur as the result of an excavation, he may order the work stopped or may approve the work of excavation subject to such limi- tations, as he may deem necessary. SECTION 1818 HIGH VELOCITY HURRICANE ZONES BEARING CAPACITY OF SOIL 1818.1 Design bearing capacity. Plans for new buildings, structures or additions shall clearly identify the nature of the soil under the structure and the allowable beating capacity used in sizing the building foundation support system. Exception: See 1822_1 for plans for new buildings, struc- tures or additions that are to be supported on a piling - foundation system. 1818.2 Allowable bearing capacity. Prior to the installation of any footing foundation system for new buildings, struc- tures or additions, the building official shall be provided with a statement of allowable beating capacity from an architect or professional engineer. Said statement shall clearly identify the allowable in-place bearing capacity of the building pad for the new building or addition and verify the existing soil conditions. The certitied in-place beating capacity shall have been determined by way of recognized tests or rational analy- sis and shall meet or exceed the design bearing capacity iden- tified under [818.1. SECTION 1819 HIGH VELOCITY HURRICANE ZONES SOIL BEARING FOUNDATIONS 1819.1 General. Footings shall be constructed of reintorced concrete, as set torth in Chapter 19 (High Velocity Hurricane Zones) of this code and in this section, and shall, insotar as is practicable, be so designed that the soil pressure shall be rea- sonably unitorm to minimize differential settlement. 1819.2 Continllolls wall footings. 1819.2.1 Footings under walls shall be continuous or con- tinuity otherwise provided and shan be not less than required to keep the soil pressure within that set forth in 1818 nor less than the toll owing minimums: Minimum Depth and (Allowable bearing capacity Width (2) Pounds per square foot) No. of Stories (Inches) 2000 I 12x 16(]) 2000 2 12 x 24 Based on rational analysis and soil investigation as set forth in section 2402. the tooting size or bearing capacity may vary, but the minimum width of a fouting under the main wails of the building shall not be less than 16 Inches nor less than 8 inches more than the width of the walL Notes: ll) For single story v.:oud frame exterior walls. the minimum size continuous foot- ing shall be 16 inches deep '\ 24 inches wide. (2l .-\ny continuous \vall f()l)ting acting :lS a shear wall foundation shall be speCIf- ically designed for that purpose. FLORIDA BUILDING CODE - BUILDING