Florida Senate - 2019 SB 1648 By Senator Albritton 26-01257-19 20191648__ 1 A bill to be entitled 2 An act relating to the Florida Building Code; amending 3 s. 553.73, F.S.; requiring the Florida Building Code 4 to require that the entire envelope of certain 5 buildings being constructed or rebuilt be impact 6 resistant and constructed with high wind-resistant and 7 noncombustible construction materials; requiring that 8 all parts or systems of a building or structure 9 envelope meet impact test criteria or be protected 10 with an external protection device that meets such 11 criteria; providing exceptions; specifying certain 12 items that shall be deemed to comply with impact tests 13 for wind-borne debris; providing an effective date. 14 15 Be It Enacted by the Legislature of the State of Florida: 16 17 Section 1. Subsection (21) is added to section 553.73, 18 Florida Statutes, to read: 19 553.73 Florida Building Code.— 20 (21)(a) The Florida Building Code shall require that the 21 entire envelope of a building be impact resistant and require 22 the use of high wind-resistant and noncombustible construction 23 materials for the construction of: 24 1. Multistory residential group R1 or multistory 25 residential group R2 occupancies; 26 2. New residential construction that is: 27 a. Within 10 miles of the coastal mean high-water line and 28 where the ultimate design wind speed is 130 miles per hour or 29 greater; or 30 b. In areas where the ultimate design wind speed is 140 31 miles per hour or greater; 32 3. New residential construction in the high-velocity 33 hurricane zone, as defined in the code; and 34 4. Buildings designated or used as hurricane shelters. 35 36 A structure listed in subparagraph 1., subparagraph 2., 37 subparagraph 3., or subparagraph 4. which is being rebuilt after 38 being deemed uninhabitable or destroyed by a hurricane, a 39 tropical storm, or a fire must also meet the requirements of 40 this paragraph. 41 (b) The code shall require that all parts or systems of a 42 building or structure envelope, including, but not limited to, 43 exterior walls, roofs, outside doors, skylights, glazing, and 44 glass blocks, meet impact test criteria or be protected with an 45 external protection device that meets the impact test criteria. 46 This paragraph does not apply to: 47 1. Roof assemblies attached to a building which do not 48 breach the exterior wall or building envelope and have no 49 enclosed sides other than screening; 50 2. Soffits, soffit vents, or ridge vents. The size and 51 location of a soffit, soffit vent, or ridge vent must be 52 detailed by the designer and may not compromise the integrity of 53 the diaphragm boundary; 54 3. Vents in a garage that is designed to hold no more than 55 four cars. The size and location of such vents must be detailed 56 by the designer and may not exceed the minimum required area by 57 more than 25 percent; 58 4. Exterior wall or roof openings for wall- or roof-mounted 59 HVAC equipment; 60 5. Openings for roof-mounted personnel access roof hatches; 61 6. Storage sheds that are not designed for human habitation 62 and that have a floor area of no more than 720 square feet; 63 7. Louvers that comply with American Society of Civil 64 Engineers Standard ASCE 7-16; 65 8. Buildings and structures for marinas, cabanas, swimming 66 pools, or greenhouses; or 67 9. Exterior balconies or porches under existing roofs or 68 decks which are enclosed with screen, removable vinyl, or 69 acrylic panels and an opening in a wall separating a unit from 70 such balcony or porch, unless otherwise required by the code. 71 (c) The following shall be deemed to comply with impact 72 tests for wind-borne debris: 73 1. Exterior concrete masonry walls that are constructed in 74 accordance with the code and that are, at minimum, 8 inches 75 thick; 76 2. Exterior frame walls or gable ends sheathed with, at 77 minimum, 19/32-inch C-D exposure 1 plywood and clad wire lath 78 and stucco that is installed in accordance with the code; 79 3. Exterior frame walls and roofs constructed in accordance 80 with the code, sheathed with, at minimum, 24-gauge rib-deck-type 81 material, and clad with an approved wall finish; 82 4. Exterior reinforced concrete elements that are 83 constructed of solid normal weight concrete with no voids and 84 which are, at minimum, 2 inches thick; or 85 5. Roof systems constructed in accordance with the code, 86 sheathed with, at minimum, 19/32-inch C-D exposure 1 plywood or 87 nominal 1-inch wood decking, and surfaced with an approved roof 88 system installed in accordance with the code. 89 Section 2. This act shall take effect July 1, 2019.