Kauai's changes to the International Existing Building Code

The International Existing Building Code, 2018 Edition, is amended as follows:Amending Section 101.1 Title. Section 101.1 is amended to read:101.1 Title. These regulations shall be known as the Existing Building Code of the Building Code of the County of Kaua'i, hereinafter referred to as "this code."Amending Section 102.4 Referenced codes and standards. Section 102.4 is deleted in its entirety and amended to read:102.4 Referenced codes and standards. The codes and standards referenced in this code shall be considered to be part of the requirements of this code to the prescribed extent of each such reference and as further regulated in Sections 102.4.1 and 102.4.2.Exception: Where enforcement of a code provision would violate the conditions of the listing of the equipment or appliance, the condition of the listing shall govern.102.4.1 Conflicts. Where conflicts occur between provisions of this code and reference codes and standards, the provisions of this code shall apply.102.4.2 Conflicting provisions. Where the extent of the reference to a referenced code or standard includes subject matter that is within the scope of this code, the provisions of this code, as applicable, shall take precedence over the provisions in the referenced code or standard.102.4.3 Conflicts with laws. If this code conflicts with another applicable law of the jurisdiction, then said applicable law shall prevail over this code.102.4.4 Building code. Whenever the term International Building Code is used in this code, it shall mean the County of Kaua'i Building Code.102.4.5 Gas. Whenever the term International Fuel Gas Code is used in this code, it shall mean the County of Kaua'i Plumbing Code.102.4.6 Plumbing. Whenever the term International Plumbing Code is used in this code, it shall mean the County of Kaua'i Plumbing Code.102.4.7 Fire prevention. Whenever the term International Fire Code is used in this code, it shall mean the County of Kaua'i Fire Code.102.4.8 Energy. Whenever the term International Energy Conservation Code is used in this code, it shall mean the County of Kaua'i Building Code.102.4.9 Residential code. Whenever the term International Residential Code is used in this code, it shall mean the County of Kaua'i Building Code.102.4.10 Electrical code. The provisions of the County of Kaua'i Electrical Code shall apply.102.4.11 Other codes. Other referenced codes not listed in Section 102.4 are considered referenced guidelines and not mandatory.Deleting PART 2 - ADMINISTRATION AND ENFORCEMENT. This part is deleted in its entirety and replaced with the administrative and enforcement provisions in the International Building Code as amended by this Code.Adding Section 303.3.3 Pre-engineered bracing of post and pier foundations. Section 303.3.3 is added to read:303.3.3 Pre-engineered bracing of post and pier foundations. For conventional light-framed single-family residences two stories or less above grade, seismic bracing retrofits of elevated wood post and pier foundation systems shall be permitted to be pre-engineered designs for braces or shear walls constructed in accordance with FEMA Hazard Mitigation Grant Program DR-1664-HI drawings, Structural Seismic Retrofits for Hawai'i Single Family Residences with Post and Pier Foundations May 2009.Amending Section 506.4.2 Snow and wind loads. Section 506.4.2 is amended to read:506.4.2 Snow and wind loads. Where a change of occupancy results in a structure being assigned to a higher risk category, or where the change is from a Group S or Group U occupancy to any occupancy other than Group S or Group U, the structure shall satisfy the requirements of Sections 1608 and 1609 of the International Building Code for the new risk category.Exceptions:1.Where the area of the new occupancy is less than ten percent (10%) of the building area, compliance with this section is not required. The cumulative effect of occupancy changes over time shall be considered.2.Where the change is from a Group S or Group U occupancy, use of seventy-five percent (75%) of snow and wind forces shall be permitted.Amending Section 506.4.3 Seismic loads (seismic force-resisting system). Section 506.4.3 is amended to read:506.4.3 Seismic loads (seismic force-resisting system). Where a change of occupancy results in a building being assigned to a higher risk category, or where the change is from a Group S or Group U occupancy to any occupancy other than Group S or Group U, the building shall satisfy the requirements of Section 1613 of the International Building Code for the new risk category using full seismic forces.Exceptions:1.Where the area of the new occupancy is less than ten percent (10%) of the building area, and the new occupancy is not assigned to Risk Category IV, compliance with this section is not required. The cumulative effect of occupancy changes over time shall be considered.2.Where a change of use results in a building being reclassified from Risk Category I or II to Risk category III and the seismic coefficient, SDS, is less than 0.33, compliance with this section is not required.3.Unreinforced masonry bearing wall buildings assigned to Risk Category III and to Seismic Design Category A or B shall be permitted to use Appendix Chapter A1 of this code.4.Where the change is from a Group S or Group U occupancy, use of reduced seismic forces shall be permitted.Amending Section 706.2 Addition of replacement of roofing or replacement of equipment. Section 706.2 is amended to read:706.2 Addition of replacement of roofing or replacement of equipment. Any existing gravity load-carrying structural element for which an alternation causes an increase in design dead, live or snow load, including snow drift effects, of more than 5 percent shall be replaced or altered as needed to carry the gravity loads required by the International Building Code for new structures.Exceptions:1.Buildings of Group R occupancy with not more than five dwelling or sleeping units used solely for residential purposes where the altered building complies with the conventional light-frame constructions methods of the International Building Code or the provisions of the International Residential Code.2.Buildings in which the increased dead load is due entirely to the addition of a second layer of roof covering or addition of insulation, weighing 3 pounds per square foot (0.1437 kN/m3) or less over an existing single layer of roof covering.Amending Section 706.3.2 Roof diaphragms resisting wind loads in high-wind regions. Section 706.3.2 is amended to read:706.3.2 Roof diaphragms resisting wind loads in high-wind regions. Where roofing materials are removed from more than 50 percent of the roof diaphragm of section of a building located where the basic wind speed, V, determined in accordance with Figure 1609.3(1) of the International Building Code, is greater than 115 mph (51 m/s) or in a special wind region, as defined in Section 1609 of the International Building Code, roof diaphragms, connections of the roof diaphragm to the roof framing members, and roof-to-wall connections shall be evaluated for the wind loads specified in the International Building Code, including wind uplift. If the diaphragms and connections in their current condition are not capable of resisting seventy-five percent (75%) of those wind loads, they shall be replaced or strengthened in accordance with at least seventy-five percent (75%) of the loads specified in the International Building Code.Amending Section 1006.2 Snow and wind loads. Section 1006.2 is amended to read:1006.2 Snow and wind loads. Where a change of occupancy results in a structure being assigned to a higher risk category, or where the change is from a Group S or Group U occupancy to any occupancy other than Group S or Group U, the structure shall satisfy the requirements of Sections 1608 and 1609 of the International Building Code for the new risk category.Exceptions:1.Where the area of the new occupancy is less than ten percent (10%) of the building area, the cumulative effect of occupancy changes over time shall be considered.2.Where the change is from a Group S or Group U occupancy, use of seventy-five percent (75%) of snow and wind forces shall be permitted.Amending Section 1006.3 Seismic loads. Section 1006.3 is amended to read:1006.3 Seismic loads. Where a change of occupancy results in a building being assigned to a higher risk category, or where the change is from a Group S or Group U occupancy to any occupancy other than Group S or Group U, the building shall satisfy the requirements of Section 1613 of the International Building Code for the new risk category using full seismic forces.Exceptions:1.Where a change of use results in a building being reclassified from Risk Category I or II to Risk Category III and the seismic coefficient, SDS, is less than 0.33, compliance with this section is not required.2.Where the area of the new occupancy is less than 10 percent of the building area and the new occupancy is not assigned to Risk Category IV. The cumulative effect of occupancy changes over time shall be considered.3.Unreinforced masonry bearing wall buildings assigned to Risk Category III and to Seismic Design Category A or B shall be permitted to use Appendix Chapter A1 of this code.4.Where the change is from a Group S or Group U occupancy, use of reduced seismic forces shall be permitted.