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EXISTING BUILDINGS AND STRUCTURES
PURPOSE AND INTENT
AJ101.1 General. The purpose of these provisions is to encourage the continued use or reuse of legally existing buildings and structures. These provisions are intended to permit work in existing buildings that is consistent with the purpose of the International Residential Code. Compliance with these provisions shall be deemed to meet the requirements of the International Residential Code.
EXCEPTION: Buildings and structures located within the High Velocity
Hurricane Zone shall comply with the provisions of Chapter 34 of the Florida Building Code.
* * *
HIGH VELOCITY ZONE EXTERIOR WALL COVERING
R4401.1.1 Wood and wood products used for wall claddings shall comply with R4409.
R4401.1.2 Wood and wood-products used for wall cladding as non-structural exterior trim, fascia and soffits on buildings of Type I, Type II, and Type III Construction may be applied to the outside of exterior walls, cornices, architectural appendages, eaves overhangs and similar projections. Where an exterior wall is required to be fire resistive, such material shall be separated from the interior of the building by the vertical extension of the exterior wall.
R4401.2 Asphalt shingles. Asphalt shingles shall be applied only to solid wood sheathing and shall be in tin-capped and spot-stuck, as set forth in R4402.
R4401.3 Roll slate or felt. Roll slate or felt shall be applied only to solid wood sheathing and shall be secured by nailing, as set forth in Section 4402.
R4401.4 Metal shingles. Metal shingles shall be applied only to solid wood sheathing and shall be secured as set forth in Section 4402.
R4401.5 Steel shingles. Steel Siding shall be designed and applied as set forth in R4408.
R4401.6 Aluminum siding. Aluminum siding shall be designed and applied as set forth in R4406.
R4401.7 Veneers. Masonry veneers shall be applied as set forth in R4407.
R4401.8 Combustible materials. Combustible materials and fire resistive characteristics of all materials shall comply with the requirements for the group of occupancy or type of construction, and the required interior finish rating.
R4406.9 Other materials. Any cladding materials or assembly not addressed in this code shall be classified by the building official as the one it most nearly resembles, and shall comply with the requirements for loading and fire resistance herein required for such materials and assemblies.
HIGH VELOCITY HURRICANE ZONES –
ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
R4402.1.1 Scope. The provisions of this section shall set forth minimum requirements for the installation of roofing components, roofing systems, roofing assemblies and the waterproofing thereof.
R4402.1.2 Application. These High Velocity Hurricane Zone roofing requirements with associated Roofing Application Standards (RAS) and Testing Application Standards are solely to be implemented in areas of high basic wind speeds, and where the jurisdiction having authority has adopted their use [Mod 695 AM].
R4402.1.2.1 All roofing components, roofing systems and roofing assemblies for construction regulated by this code shall comply with this chapter. All roofing components, roofing systems and roofing assemblies shall have a valid and current Notice of Acceptance, referred to as NOA hereinafter. In the event that the manufacturers published literature or instructions are in conflict with those of the NOA, the NOA shall prevail. Where items specifically and expressly addressed in this chapter are in conflict with the NOA, the provisions of this chapter shall prevail.
R4402.1.2.2 Innovative products and/or systems outside those currently recognized under this chapter may have a NOA issued based on performance testing; in such case(s) the conditions set in the NOA shall prevail.
R4402.1.2.3 For roofing systems to be installed on a specific building or structure, where an existing NOA may not be applied, such roofing system may be granted a one time approval by the authority having jurisdiction, provided the applicant demonstrates, by testing and/or rational analysis that such roofing system complies with the provision of this code.
R4402.1.2.4 Where a NOA does not address a detail for a specific job condition, the permit applicant may propose to the building official an alternate detail to address the specific need of the job. The building official may accept such proposal if it can be demonstrated that the provisions of this code will be met.
R4402.1.2.5 Workmanship standards. All roofing work shall be performed by a qualified contractor licensed to perform roofing, in compliance with the tolerances, quality and methods of construction established herein or set forth in the standards adopted by these High Velocity Hurricane Zone requirements. Roofing assemblies detailed in product control approvals shall be installed in strict compliance with the method of application set forth in such product control approval or, if not part of the product control approval, in compliance with manufacturer's published application instructions, or as approved by the building official. (Aesthetic issues not affecting the performance of the roof are not part of this chapter.)
R4402.1.2.5.1 Appearance. If the architectural appearance is to be preserved from below, an alternate method of attachment complying with the wind load requirements of Section 4403 may be proposed unless otherwise addressed in Section 4402. The alternative attachment shall be prepared, signed and sealed by a Florida-registered Architect or a Florida-registered Engineer, which architect or engineer shall be proficient in structural design.
R4402.1.3 Permits outside these High Velocity Hurricane Zone requirements shall comply with §104. Permits within high wind areas shall be required for all work in connection with the application, repair or maintenance of any roofing component or any roofing assembly and/or any of its components except as otherwise permitted in §104 of this code.
R4402.1.3.1 All new roofing construction, including recovering and reroofing, repair and maintenance shall have a Uniform Roofing Permit Application, as established by the authority having jurisdiction, completed and executed by a licensed contractor.
R4402.1.3.2 The Uniform Roofing Permit shall include calculations per Chapter 16 (High Velocity Hurricane Zone) of this code, unless the roofing assembly is less than the height/pressure threshold allowed in the applicable protocols herein.
R4402.1.3.4 Attachments to the Uniform Roofing Permit application shall include two copies of each of the following documents: properly executed OWNERS NOTIFICATION FOR ROOFING CONSIDERATIONS herein; the fire directory listing pages product control approval Cover Sheet, product control approval Specific System Description, product control approval Specific System Limitation, product control approval General Limitations, and applicable detail drawings; the Municipal Permit Application; other components approvals; and any other additional data reasonably required by the authority having jurisdiction needed to determine the integrity of the roofing system.
R4402.1.3.5 In new construction, a licensed roofing contractor may dry-in the wood deck (no mopping) on a specific structure, prior to the roofing permit being issued provided:
R4402.1.3.5.1 The master building permit for that specific structure has been obtained;
R4402.1.3.5.2 The sheathing inspection has been made and approved by the building official; and
R4402.1.3.5.3 The required roofing permit application is submitted to the building official within 10 days after dry-in work is started and the slope of the roof deck is 2:12 or greater.
R4402.1.4 Inspections performed outside these High Velocity Hurricane Zone requirements shall comply with R109 .
R4402.1.4.1 All roofing work for which a permit is required shall be inspected by the building official. One or more inspections may be performed at the same time at the request of the roofing contractor or when feasible. Lack of roofing contractor's personnel at the job site, in and of itself, shall not be cause to fail the inspection. Certain roofing inspections shall be performed during specific phases of the applications as noted below:
R4402.1.4.2 For discontinuous roofing systems (as defined herein or Chapter 2):
R4402.1.4.2.1 During or after application of the base sheet, anchor sheet or underlayment of any roofing system.
R4402.1.4.2.2 During the installation of the cap sheet.
R4402.1.4.2.3 During the installation of any prepared roof covering, such as shingles, tiles, slates, shakes, and similar.
R4402.1.4.2.4 Upon completion of all mortar-set tile systems, and prior to the final inspection, a field verification and static uplift test, in compliance with TAS 106 shall be required to confirm tile adhesion. This test may be required by the building official for mechanically attached tile systems. All results of this test shall be submitted to the building official.
R4402.1.4.3 For continuous roofing systems (as defined in herein or Chapter 2):
R4402.1.4.3.1 During application of any roofing system prior to the full concealment of the adhesion/attachment process to the roof deck or to the existing roofing assembly.
R4402.1.4.3.2 In cases where a roof area is less than 1500 sq feet, and when the building official is not able to perform any of the above requested inspection in a timely manner, the building official may authorize to continue with the work and may require that satisfactory evidence be provided to show that the covered work was performed in compliance with this code.
R4402.1.4.3.3 After all roofing work has been completed; a final inspection shall be performed by the building official.
|This is not an official, verbatim transcript of the following meeting. It should be used for informational purposes only. This document has not been edited; therefore, there may be additions, deletions, or words that did not translate||This is not an official, verbatim transcript of the following meeting. It should be used for informational purposes only. This document has not been edited; therefore, there may be additions, deletions, or words that did not translate|
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