Ga. Comp. R. & Regs. 110-11-1-.25
GEORGIA STATE MINIMUM STANDARD ONE- AND TWO-FAMILY DWELLING CODE
(INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS WITH GEORGIA STATE AMENDMENTS)
The INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS, 2018 Edition, published by the International Code Council, when used in conjunction with these and any other Georgia State Amendments to the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS, 2018 Edition, shall constitute the official Georgia State Minimum Standard One- and Two-Family Dwelling Code.
Part IV, Energy Conservation (Chapter 11), is deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS. Substitute all references to Chapter 11 ENERGY EFFICIENCY with references to the Georgia State Minimum Standard Energy Code (International Energy Conservation Code with Georgia State Supplements and Amendments).
Part VII, Plumbing (Chapters 25 through 33), is deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS. Substitute for plumbing requirements the Georgia State Minimum Standard Plumbing Code (International Plumbing Code with Georgia State Amendments).
Part VIII, Electrical (Chapters 34 through 43), is deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS. Substitute for electrical requirements the Georgia State Minimum Standard Electrical Code (National Electrical Code with any Georgia State Amendments).
GEORGIA STATE AMENDMENTS
CODE REFERENCES:
SCOPE:
The provisions of the International Residential Code for One- and Two-family Dwellings shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal and demolition of detached one- and two-family dwellings and townhouses separated by a 2-hour fire-resistance-rated wall assembly, not more than three stories above grade plane in height with a separate means of egress and their accessory structures.
Exceptions:
IMPORTANT NOTE:
The intent of the GA amendments is that fire sprinklers shall not be mandatory in one- and two-family dwellings. However, the provisions of the 2018 Edition of the International Residential Code for One- and Two-Family Dwellings regarding automatic fire sprinklers are to remain in the Code for use when the builder/developer or owner chooses to install fire sprinklers as an option.
{Ref. O.C.G.A. § 8-2-4. Neither the state residential and fire building code nor any residential and fire building code adopted by a political subdivision of the state adopted after May 24, 2010, shall include a requirement that fire sprinklers be installed in a single-family dwelling or a residential building that contains no more than two dwelling units.}
APPENDICES:
Appendices are not enforceable unless they are specifically referenced in the body of the code or adopted by the Department of Community Affairs or the Authority Having Jurisdiction.
*Revise the International Residential Code for One- and Two-Family Dwellings, 2018 Edition, as follows:
CHAPTER 14
HEATING AND COOLING EQUIPMENT AND APPLIANCES
SECTION M1402
CENTRAL FURNACES
*Revise Section M1402.1 'General' to read as follows:
Oil-fired central furnaces shall conform to ANSI/UL 727. Electric furnaces shall conform to UL 1995 or UL/CSA 60335-2-40.
(Effective January 1, 2024)
SECTION M1403
HEAT PUMP EQUIPMENT
*Revise Section M1403.1 'Heat pumps' to read as follows:
Electric heat pumps shall be listed and labeled in accordance with UL 1995 or UL/CSA 60335-240.
(Effective January 1, 2024)
SECTION M1412
ABSORPTION COOLING EQUIPMENT
*Revise Section M1412.1 'Approval of equipment' to read as follows:
Absorption systems shall be installed in accordance with the manufacturer's instructions.
Absorption equipment shall comply with UL 1995 or UL/CSA 60335-2-40.
(Effective January 1, 2024)
SECTION M1413
EVAPORATIVE COOLING EQUIPMENT
*Revise Section M1413.1 'General' to read as follows:
Evaporative cooling equipment and appliances shall comply with UL 1995 or UL/CSA 60335-240 and shall be installed:
(Effective January 1, 2024)
CHAPTER 20
BOILERS AND WATER HEATERS
SECTION M2006
POOL HEATERS
*Revise Section M2006.1 'General' to read as follows:
Pool and spa heaters shall be installed in accordance with the manufacturer's installation instructions. Oil-fired pool heaters shall comply with UL 726. Electric pool and spa heaters shall comply with UL 12161. Pool and spa heat pump water heaters shall comply with UL 1995, UL/CSA 60335-2-40 or CSA C22.2 No. 236.
(Effective January 1, 2024)
CHAPTER 44
REFERENCED STANDARDS
*Revise Chapter 44 'Referenced standards' to read as follows:
ASHRAE | ASHRAE 1791 Tullie Circle NE Atlanta, GA 30329 | |
34- 2022 | Designation and Safety Classification of Refrigerants | M1411.1 |
UL | UL LLC 333 Pfingsten Road Northbrook, IL 60062 | |
1995-2015 | Heating and Cooling Equipment | M1402.1, M1403.1, M1412.1, M1413.1, M2006.1 |
UL/CSA 60335-2-40-2022 | Standard for Household and Similar Electrical Appliances - Safety -, Part 2-40: Particular Requirements for Electrical Heat Pumps, Air-Conditioners and Dehumidifiers | M1402.1, M1403.1, M1412.1, M1413.1, M2006.1 |
GEORGIA STATE MINIMUM STANDARD ONE- AND TWO-FAMILY DWELLING CODE
(INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS WITH GEORGIA STATE AMENDMENTS)
The INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS, 2018 Edition, published by the International Code Council, when used in conjunction with these and any other Georgia State Amendments to the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS, 2018 Edition, shall constitute the official Georgia State Minimum Standard One- and Two-Family Dwelling Code.
Part IV, Energy Conservation (Chapter 11), is deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS. Substitute all references to Chapter 11 ENERGY EFFICIENCY with references to the Georgia State Minimum Standard Energy Code (International Energy Conservation Code with Georgia State Supplements and Amendments).
Part VII, Plumbing (Chapters 25 through 33), is deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS. Substitute for plumbing requirements the Georgia State Minimum Standard Plumbing Code (International Plumbing Code with Georgia State Amendments).
Part VIII, Electrical (Chapters 34 through 43), is deleted from the INTERNATIONAL RESIDENTIAL CODE FOR ONE- AND TWO-FAMILY DWELLINGS. Substitute for electrical requirements the Georgia State Minimum Standard Electrical Code (National Electrical Code with any Georgia State Amendments).
GEORGIA STATE AMENDMENTS
CODE REFERENCES:
SCOPE:
The provisions of the International Residential Code for One- and Two-family Dwellings shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, removal and demolition of detached one- and two-family dwellings and townhouses separated by a 2-hour fire-resistance-rated wall assembly, not more than three stories above grade plane in height with a separate means of egress and their accessory structures.
Exceptions:
IMPORTANT NOTE:
The intent of the GA amendments is that fire sprinklers shall not be mandatory in one- and two-family dwellings. However, the provisions of the 2018 Edition of the International Residential Code for One- and Two-Family Dwellings regarding automatic fire sprinklers are to remain in the Code for use when the builder/developer or owner chooses to install fire sprinklers as an option.
{Ref. O.C.G.A. § 8-2-4. Neither the state residential and fire building code nor any residential and fire building code adopted by a political subdivision of the state adopted after May 24, 2010, shall include a requirement that fire sprinklers be installed in a single-family dwelling or a residential building that contains no more than two dwelling units.}
APPENDICES:
Appendices are not enforceable unless they are specifically referenced in the body of the code or adopted by the Department of Community Affairs or the Authority Having Jurisdiction.
*Revise the International Residential Code for One- and Two-Family Dwellings, 2018 Edition, as follows:
CHAPTER 1
SCOPE AND ADMINISTRATION
*Delete Chapter 1 'Scope and Administration' without substitution. Chapter 1 to remain in the Code as a reference and guide for local governments to use in development of their own Administrative Procedures.
(Effective January 1, 2020)
CHAPTER 2
DEFINITIONS
SECTION R202
DEFINITIONS
*Revise Section R202 'Definitions' for "[RB] Lodging House" to read as follows:
[RB] LODGING HOUSE. A one-family dwelling with 5 or fewer guestrooms, where one or more occupants are primarily permanent in nature, and rent is paid for guestrooms.
(Effective January 1, 2020)
*Revise Section R202 'Definitions' for "[RB] Townhouse" to read as follows:
[RB] TOWNHOUSE (ROW HOUSE). A single-family dwelling unit constructed in a group of three or more attached units. Each unit extends from foundation to roof, not more than three stories in height, with a separate means of egress, and with an open space/yard or public way on at least two sides. Each townhouse shall be considered a separate building with independent exterior walls and shall be separated by a 2-hour fire-resistance-rated wall assembly.
(Effective January 1, 2020)
CHAPTER 3
BUILDING PLANNING
SECTION R302
FIRE-RESISTANT CONSTRUCTION
*Revise Section R302.1 'Exterior walls' to read as follows:
(Existing exceptions to remain as written).
(Effective January 1, 2020)
*Revise Section R302.2 'Townhouses' to read as follows:
Exception: A common 2-hour fire-resistance-rated wall assembly tested in accordance with ASTM E 119 or UL 263 is permitted for townhouses, if such walls do not contain plumbing or mechanical equipment, ducts or vents in the cavity of the common wall. The wall shall be rated for fire exposure from both sides and shall extend to and be tight against exterior walls and the underside of the roof sheathing. Electrical installations shall be installed in accordance with the National Electrical Code (NEC). Penetrations of electrical outlet boxes shall be in accordance with Section R302.4.
(Effective January 1, 2020)
* Delete Section R302.2.1 'Double walls' without substitution.
(Effective January 1, 2020)
* Delete Section R302.2.2 'Common walls' without substitution.
(Effective January 1, 2020)
*Revise Section R302.2.6 'Structural independence' to delete exception #5 without substitution. (Effective January 1, 2020)
*Revise Section R302.5.1 'Opening protection' to read as follows:
*Revise Table R302.6 'DWELLING-GARAGE SEPARATION' to add a new footnote "a" to read as follows:
TABLE R302.6
DWELLING-GARAGE SEPARATION
SEPARATION | MATERIAL |
From the residence and attics | Not less than 1/2-inch gypsum board or equivalent applied to the garage side |
From all habitable rooms above the garage | Not less than 5/8-inch Type X gypsum board or equivalent |
Structure(s) supporting floor/ceiling assemblies used for separation required by this sectiona | Not less than 1/2-inch gypsum board or equivalent |
Garages located less than 3 feet from a dwelling unit on the same lot | Not less than 1/2-inch gypsum board or equivalent applied to the interior side of exterior walls that are within this area |
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
(Effective January 1, 2020)
*Delete Section R302.13 'Fire protection of floors' without substitution.
(Effective January 1, 2020)
SECTION R303
LIGHT, VENTILATION AND HEATING
*Revise Section R303.4 'Mechanical ventilation' to read as follows:
(Effective January 1, 2020)
SECTION R306
SANITATION
*Add new Section R306.5 'Exterior hose bibs, sill cocks or outside hydrants' to read as follows:
(Effective January 1, 2020)
*Add new Section R306.6 'Construction worker toilet facilities' to read as follows:
(Effective January 1, 2020)
SECTION R309
GARAGES AND CARPORTS
*Delete Section R309.5 'Fire sprinklers' without substitution.
(Effective January 1, 2020)
SECTION R311
MEANS OF EGRESS
*Delete Exception to Section R311.7.11 'Alternating tread devices' without substitution. (Effective January 1, 2020)
SECTION R312
GUARDS AND WINDOW FALL PROTECTION
*Revise the heading of Section R312 'Guards and Window Fall Protection' to read as follows:
SECTION R312
GUARDS
(Effective January 1, 2020)
*Delete Section R312.2 'Window fall protection' without substitution.
(Effective January 1, 2020)
SECTION R313
AUTOMATIC FIRE SPRINKLER SYSTEMS
*Delete Section R313 'AUTOMATIC FIRE SPRINKLER SYSTEMS' and substitute to read as follows:
SECTION R313
AUTOMATIC FIRE SPRINKLER SYSTEMS
(Optional)
(Effective January 1, 2020)
(Effective January 1, 2020)
*Delete any other code references to Section P2904 'Dwelling unit fire sprinkler systems' and substitute NFPA 13D.
(Effective January 1, 2020)
SECTION R315
CARBON MONOXIDE ALARMS
* Revise Section R315.2.1 'New Construction' to read as follows:
(Effective January 1, 2020)
SECTION R321
ELEVATORS AND PLATFORM LIFTS
*Revise Section R321.1 'Elevators' and add a new Section R321.1.1 'Hoistway opening framing' to read as follows:
(Effective January 1, 2020)
(Effective January 1, 2020)
SECTION R322
FLOOD-RESISTANT CONSTRUCTION
*Delete Section R322.1.9 'Manufactured homes' without substitution.
(Effective January 1, 2020)
CHAPTER 5
FLOORS
SECTION R502
WOOD FLOOR FRAMING
* Revise Section R502.6 'Bearing' to read as follows:
(Effective January 1, 2020)
SECTION R507
EXTERIOR DECKS
* Revise Figure R507.5.1(1) 'DECK BEAM TO DECK POST' to include a new illustration for "Corner Beam Over Post" as follows:
(Effective January 1, 2020)
*Revise R507.9.1.3 'Ledger to band joist details' to read as follows:
(Effective January 1, 2020)
*Revise Figure R507.9.1.3 (2) 'Placement of Lag Screws and Bolts in Band Joists' as follows:
FIGURE R507.9.1.3(2)
PLACEMENT LAG SCREWS AND BOLTS IN BAND JOISTS
(Effective January 1, 2020)
* Revise Figure R507.9.2(1) 'Deck Attachment for Lateral Loads' as follows:
FIGURE R507.9.2(1)
DECK ATTACHMENT FOR LATERAL LOADS
(Effective January 1, 2020)
*Revise Figure R507.9.2(2) 'Deck Attachment for Lateral Loads' and as follows:
FIGURE R507.9.2(2)
DECK ATTACHMENT FOR LATERAL LOADS
(Effective January 1, 2020)
CHAPTER 6
WALL CONSTRUCTION
SECTION R602
WOOD WALL FRAMING
*Add new exception to R602.10 'Wall bracing' to read as follows:
Exception: APA Simplified Wall Bracing Method, SR-102 may be used as an alternate method of wall bracing subject to limitations in document.
(Effective January 1, 2020)
CHAPTER 8
ROOF-CEILING CONSTRUCTION
SECTION R806
ROOF VENTILATION
*Delete R806.5 'Unvented attic and unvented enclosed rafter assemblies' Item 5.2 without substitution.
(Effective January 1, 2020)
SECTION R807
ATTIC ACCESS
Add new Section R807.1.1 'Attic service access' to read as follows:
(Effective January 1, 2020)
CHAPTER 13
GENERAL MECHANICAL SYSTEM REQUIREMENTS
SECTION M1301
GENERAL
*Revise Section M1301.2 'Identification' to read as follows:
(Effective January 1, 2020)
CHAPTER 16
DUCT SYSTEMS
SECTION M1601
DUCT CONSTRUCTION
*Delete Section M1601.1.1 'Above-ground duct systems', Item 5 without substitution.
(Effective January 1, 2020)
*Revise Section M1601.1.1 'Above ground duct systems', Item 7.1 as follows:
(Remainder of section unchanged.)
(Effective January 1, 2020)
CHAPTER 19
SPECIAL APPLIANCES, EQUIPMENT AND SYSTEMS
SECTION M1901
RANGES AND OVENS
*Revise Section M1901.2 'Cooking appliances' to add a new exception to read as follows:
Exception: Listed and labeled commercial cooking appliances may be installed in dwelling units and domestic kitchens when designed and accepted by a Georgia licensed Professional Engineer.
(Effective January 1, 2020)
CHAPTER 24
FUEL GAS
SECTION G2415 (404)
PIPING SYSTEM INSTALLATION
*Delete Section G2415.6 (404.6) 'Underground penetrations prohibited' and substitute to read as follows:
(Effective January 1, 2020)
*Revise Section G2415.7.1 (404.7.1) 'Piping through bored holes or notches' to read as follows:
(Effective January 1, 2020)
*Delete Section G2415.7.2 (404.7.2) 'Piping installed in other locations' without substitution. (Effective January 1, 2020)
*Delete Section G2415.11.1 (404.11.1) 'Galvanizing' without substitution: (Effective January 1, 2020)
*Revise Section G2415.18 (404.18) 'Pipe Cleaning' to read as follows:
(Effective January 1, 2020)
SECTION G2420 (409)
SHUTOFF VALVES
*Add new Section G2420.2.1 (409.2.1) 'System shutoff valve' to read as follows:
(Effective January 1, 2020)
SECTION G2423 (413)
COMPRESSED NATURAL GAS MOTOR VEHICLE FUEL-DISPENSING FACILITIES
*Delete Section G2423.1 (413.1) 'General' and substitute to read as follows:
(Effective January 1, 2020)
*Add new APPENDIX Q 'TINY HOUSES' to read as follows:
APPENDIX Q
TINY HOUSES
(The provisions contained in this appendix are not mandatory unless specifically referenced in the adopted ordinance.)
SECTION AQ101
GENERAL
APPENDIX AQ102
DEFINITIONS
EGRESS ROOF ACCESS WINDOW. A skylight or roof window designed and installed to satisfy the emergency escape and rescue opening requirements in Section R310.2.
LANDING PLATFORM. A landing provided as the top step of a stairway accessing a loft.
LOFT. A floor level located more than 30 inches (762 mm) above the main floor, open to the main floor on one or more sides with a ceiling height of less than 6 feet 8 inches (2032 mm) and used as a living or sleeping space.
LOFT. A floor level located more than 30 inches (762 mm) above the main floor, and open to it on at least one side with a ceiling height of a maximum of 5 feet, used as a living or sleeping space.
TINY HOUSE. A dwelling that is 400 square feet (37 m2) or less in floor area excluding lofts.
SECTION AQ103
CEILING HEIGHT
Exception: Ceiling heights in lofts are permitted to be less than 6 feet 8 inches (2032 mm) a maximum of 5 feet (1524 mm).
SECTION AQ104
LOFTS
Exception: Under gable roofs with a minimum slope of 6:12, portions of a loft with a sloped ceiling measuring less than 16 inches (406 mm) from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required area for the loft.
SECTION AQ105
EMERGENCY ESCAPE AND RESCUE OPENINGS
Exception:Egress roof access windows in lofts used as sleeping rooms shall be deemed to meet the requirements of Section R310 where installed such that the bottom of the opening is not more than 44 inches (1118 mm) above the loft floor, provided the egress roof access window complies with the minimum opening area requirements of Section R310.2.1.
SECTION AQ106
SMOKE AND CARBON MONOXIDE DETECTORS
(Effective January 1, 2020)
APPENDIX U
DISASTER RESILIENT CONSTRUCTION
*The Department of Community Affairs hereby adopts Appendix U 'Disaster Resilient Construction' as optional. This document is available to download free from DCA's webpage at: https://dca.ga.gov/sites/default/files/appendix_u_-_irc_-_final_5-21-2018rev1.pdf
(Effective January 1, 2020)
GEORGIA STATE INTERNATIONAL RESIDENTIAL CODE
APPENDIX U
DISASTER RESILIENT CONSTRUCTION
The INTERNATIONAL RESIDENTIAL CODE, 2018 Edition, published by the International Code Council, when used in conjunction with the Georgia State Amendments to the INTERNATIONAL RESIDENTIAL CODE, 2018 Edition and Appendix U Disaster Resilient Construction, shall constitute the official Georgia State Minimum Standard Residential Code.
FORWARD
Introduction
The Department of Community Affairs (DCA) was awarded a grant through the U.S. Department of Housing and Urban Development (HUD) to develop Disaster Resilient Building Code (DRBC) Appendices for the International Building Code (IBC) and the International Residential Code (IRC). The DRBC Appendices are optional regulations that local jurisdictions may adopt, in whole or in part, through local ordinance. A task force of stakeholders was appointed to look for opportunities to improve any code provisions relating to damage from hurricane, flood, and tornado disasters. In addition to the approved recommendations from the task force, the state has developed and will conduct a comprehensive training program for code enforcement officials on the importance, implementation and enforcement of the Disaster Resilient Construction Appendices.
The meetings for the Disaster Resilient Building Code Appendices Task Force were open to the public, interested individuals and organizations that desired participation. The technical content of currently published documents on flooding, high-wind construction, and storm shelters, were used and referenced. Those publications included documents of the International Code Council (ICC), American Society of Civil Engineers (ASCE), the Federal Emergency Management Agency (FEMA), Mitigation Assessment Team (MAT) Program, Georgia Emergency Management Agency/Homeland Security (GEMA), APA - The Engineered Wood Association, National Institute of Standards and Technology (NIST), National Oceanic and Atmospheric Administration (NOAA), National Science Foundation (NSF), The State of Florida, American Forest & Paper Association's American Wood Council, Southern Forest Products Association, NAHB Research Center, Insurance Institute for Business & Home Safety, and the Federal Alliance for Safe Homes.
Adoption
Local jurisdictions may adopt this entire appendix with chosen options or specific sections that apply to their communities through a local ordinance. The adopting ordinance must also be filed on record with DCA. A sample ordinance has been included in this document to assist the local jurisdictions with the adoption process. Recommended training is being offered to assist code enforcement officials in the implementation and enforcement of the appendices documents. Contact DCA at (404) 679-3118 or www.dca.ga.gov for more information.
Neither The Disaster Resilient Building Code Appendices Task Force, its members nor those participating in the development of Appendix U Disaster Resilient Construction accept any liability resulting from compliance or noncompliance with the provisions of Appendix U Disaster Resilient Construction.
The 2012 Disaster Resilient Building Code (DRBC) Appendices Task Force was charged with the development of two appendices. One appendix is for the International Residential Code and the other appendix is for the International Building Code. These two appendices look for opportunities to improve any provisions relating to hurricane, flood, and tornado disasters. In addition to improving existing provisions in the codes, the task force also developed new provisions to be included in the appendices that address these issues. These appendices contain increased construction requirements for disaster resilience and are intended to be made available for adoption by local jurisdictions in the State of Georgia.
These appendices have reasonable and substantial connection with the public health, safety, and general welfare. In addition, the financial impact and costs associated with these appendices have been taken into consideration.
Members:
Mr. Gregori Anderson, Chairman, States Codes Advisory Committee (SCAC)
Mr. David L. Adams, Vice Chairman, States Codes Advisory Committee (SCAC)
Mr. Bill Abballe, AIA, American Institute of Architects (AIA) - Georgia Chapter
Mr. John Hutton, P.E., S.E., American Council of Engineering Companies of Georgia (ACEC/G)
Mr. Ron Anderson, Code Consultant
Mr. Lamar Smith, Home Builders Association of Georgia (HBAG)
Mr. Thomas Harper, Georgia State Inspectors Association (GSIA)
Mr. Tom Buttram, Building Officials Association of Georgia (BOAG)
Capt. Zane Newman, Georgia State Fire Marshal's Office (Local Fire Official)
Mr. Terry Lunn, Georgia Emergency Management Agency (GEMA)
Mr. Alan Giles, CFM, Georgia Department of Natural Resources (EPD / Floodplain Management Unit)
Mr. Tony Hebert, HUD Georgia State Representative (Region IV Office)
Mr. Jim C. Beck, Sr., Georgia Underwriting Association
Mr. Tim Thornton, Georgia Association of Realtors (GAR)
Mr. Steve Harrison, Building Owners and Managers Association - Georgia (BOMA)
Mr. Tom Aderhold, Georgia Apartment Association (GAA)
Mr. Tim Bromley, Accessibility Consultant - Georgia State ADA Coordinator's Office
Mayor Mark Mathews, Georgia Municipal Association (GMA)
Commissioner Jeff Long, Association of County Commissioners of Georgia (ACCG)
Ad Hoc Subcommittee:
Mr. Tom Buttram, Chairman, DRBC Task Force Liaison (BOAG)
Mr. Ron Anderson, Vice Chairman, Code Consultant
Mr. Stephen V. Skalko, P.E. Concrete Industry
Mr. Jeffrey B. Stone, PhD., Wood Industry (AWC)
Mr. Robert Wills, Steel Industry (AISC)
Mr. Tom Cunningham, PhD., Residential Building Design
Mr. Duncan J. Hastie, P.E., Disaster Mitigation
DCA Staff:
Mr. Ted Miltiades, Director of Construction Codes & Industrialized Buildings
Mrs. Deirdre "Dee" Leclair, DRBC Grant Project Manager
Mr. Max Rietschier, Lead Codes Consultant
Mr. Bill Towson, 2012 International Residential Code Task Force Liaison, Code Consultant
Mr. Calvin Jordan, 2012 International Building Code Task Force Liaison, Code Consultant
How to UseAppendix U Disaster Resilient Construction
The appendix may be adopted in whole or in part by Local Jurisdictions to fit the needs of their community. The following sample ordinance has been provided to aid in the process of identifying Chapters and Sections of the appendix that may be adopted. The format easily allows for choosing to adopt, revise or delete individual Chapters and Sections. Download the MS Word (.doc) version from the DCA website to take advantage of the dropdown menu choices and edit ability features of the document. Note that in Chapter 3, choose one of three options for flood elevation. Only one option may be chosen and that option must be higher than what has been previously adopted and enforced by your jurisdiction. Also note that in Chapter 4, choose one of four options for increased wind speed. Only one option may be chosen and that option must be higher than the mapped wind speed shown in the International Residential Code. The Sample Ordinance document takes into account the flood elevation option in Chapter 3 and the wind speed option in Chapter 4 of this appendix.
SAMPLE ORDINANCE FOR ADOPTION OF
GEORGIA STATE INTERNATIONAL RESIDENTIAL CODE
APPENDIX U
DISASTER RESILIENT CONSTRUCTION
ORDINANCE NO. ___________
An ordinance of the [JURISDICTION] adopting the latest edition as adopted and amended by the Georgia Department of Community Affairs of Appendix U Disaster Resilient Construction regulating and governing the mitigation of hazard to life and property from natural weather related disasters, high-wind damages, flooding, and establishing construction standards for storm shelters in the [JURISDICTION]; providing for the issuance of permits and collection of fees therefore; repealing Ordinance No. of the [JURISDICTION] and all other ordinances or parts of the laws in conflict therewith.
The [GOVERNING BODY] of the [JURISDICTION] does ordain as follows:
Choose an item. CHAPTER AU1 SCOPE AND ADMINISTRATION Choose an item.
Choose an item. SECTION AU101 ADMINISTRATION Choose an item.
Choose an item. AU101.1 Purpose Choose an item.
Choose an item. AU101.2 Objectives Choose an item.
Choose an item. AU101.3 Scope Choose an item.
AU101.3.1 Insert [Name Of Jurisdiction] for [NAME OF JURISDICTION].
Choose an item. AU101.4 Violations Choose an item.
Insert [Name Of Jurisdiction] for [NAME OF JURISDICTION].
Choose an item. SECTION AU102 APPLICABILITY Choose an item.
Choose an item. AU102.1 General Choose an item.
Choose an item. AU102.2 Other laws Choose an item.
Choose an item. AU102.3 Referenced codes and standards Choose an item.
Choose an item. SECTION AU103 POST DISASTER EVENT INSPECTIONS GUIDLINES Choose an item.
Choose an item. AU103.1 Inspections Choose an item.
Choose an item. AU103.1.1 Right of entry Choose an item.
Choose an item. AU103.2 Types of inspections Choose an item.
Choose an item. AU103.3 Post disaster building safety evaluation chart Choose an item.
Choose an item. Figure AU103.3 Post Disaster Building Safety Evaluation Chart Choose an item.
Choose an item. AU103.4 Evaluation forms Choose an item.
Insert [Name Of Jurisdiction] for [NAME OF JURISDICTION].
Choose an item. AU103.5 Placement and remove of placards Choose an item.
Choose an item. CHAPTER AU2 DEFINITIONS Choose an item.
Choose an item. SECTION AU201 GENERAL Choose an item.
Choose an item. AU201.1 Scope Choose an item.
Choose an item. AU201.2 Terms defined in other codes Choose an item.
Choose an item. AU201.3 Terms not defined Choose an item.
Choose an item. SECTION AU202 DEFINITIONS Choose an item.
Choose an item. CHAPTER AU3 FLOOD-RESISTANT CONSTRUCTION Choose an item.
Choose an item. SECTION AU301 HAZARD IDENTIFICATION Choose an item.
Choose an item. AU301.1 Identification of flood hazard areas Choose an item.
Insert [Name Of Jurisdiction] for [NAME OF JURISDICTION].
Insert [Date] for [INSERT DATE ISSUANCE].
Choose an item. SECTION AU302 SCOPE Choose an item.
Choose an item. AU302.1 Flood loads Choose an item.
Choose an item. FLOOD ELEVATION OPTION Choose an item. Choose an item.
Choose an item. SECTION AU303 FLOOD DAMAGE-RESISTANT MATERIALS Choose an item.
Choose an item. AU303.1 Flood damage-resistant materials Choose an item.
Choose an item. AU303.2 Location of flood damage-resistant materials Choose an item.
Choose an item. AU303.3 Fasteners and connectors used for flood-resistant materials Choose an item.
Choose an item. CHAPTER AU4 HIGH-WIND RESISTIVE CONSTRUCTION Choose an item.
Choose an item. SECTION AU401 GENERAL Choose an item.
Choose an item. AU401.1 Scope Choose an item.
Choose an item. AU401.2 Continuous load path Choose an item.
Choose an item. AU401.3 Adoption of wind speed Choose an item.
[Name Of Jurisdiction] adopts Option Choose an item.
Choose an item. SECTION Choose an item. Choose an item.
Choose an item. SECTION AU406 FASTENERS AND CONNECTIONS FOR CLADDING Choose an item.
Choose an item. AU406.1 Fasteners and connectors for cladding Choose an item.
Choose an item. SECTION AU407 FENESTRATION Choose an item.
Choose an item. AU407.1 Design pressure Choose an item.
Choose an item. AU407.2 Anchorage methods Choose an item.
Choose an item. SECTION AU408 ROOFING Choose an item.
Choose an item. AU408.1 Secondary water barrier Choose an item.
Choose an item. AU408.2 Fasteners Choose an item.
Choose an item. AU408.3 Attachment Choose an item.
Choose an item. CHAPTER AU5 RESIDENTIAL STORM SHELTERS AND SAFE ROOMS Choose an item.
Choose an item. SECTION AU501 GENERAL Choose an item.
Choose an item. AU501.1 General Choose an item.
Choose an item. SECTION AU502 RESIDENTIAL STORM SHELTERS AND SAFE ROOMS Choose an item.
Choose an item. AU502.1 Residential storm shelters Choose an item.
Choose an item. AU502.2 Residential safe rooms Choose an item.
TABLE OF CONTENTS
CHAPTER AU1 Scope and Administration ..................... 8
Section
AU101 Administration ..................... 8
AU102 Applicability ..................... 8
AU103 Post Disaster Event Inspections Guidelines ..................... 9
CHAPTER AU2 Definitions ..................... 11
Section
AU201 General ..................... 11
AU202 Definitions ..................... 11
CHAPTER AU3 Flood-resistant Construction. ..................... 12
Section
AU301 Hazard Identification ..................... 12
AU302 Scope ..................... 12
AU303 Flood Damage-Resistant Materials ..................... 12
CHAPTER AU4 High-wind Resistive Construction ..................... 13
Section
AU401 General ..................... 13
AU402 Option A - Minimum Wind Speed 100 MPH ..................... 13
AU403 Option B - Minimum Wind Speed 110 MPH ..................... 19
AU404 Option C - Minimum Wind Speed 120 MPH ..................... 19
AU405 Option D - Minimum Wind Speed 130 MPH ..................... 19
AU406 Fasteners and Connectors for Cladding ..................... 19
AU407 Fenestrations .......................................... 19
AU408 Roofing .......................................... 20
CHAPTER AU5 Residential Storm Shelters and Safe Rooms .......................................... 21
Section
AU501 General .......................................... 21
AU502 Residential Storm Shelters and Safe Rooms .......................................... 21
CHAPTER AU6 Resources .......................................... 22
Section
AU601 Contacts .......................................... 22
AU602 Emergency Inspection Kit .......................................... 22
AU603 Safety Tips .......................................... 23
AU604 Major Disaster Process .......................................... 23
AU605 Sample Evaluation Forms and Inspected Placards .......................................... 23
CHAPTER AU7 References .......................................... 30
INDEX OF FIGURES .......................................... 30
APPENDIX U
DISASTER RESILIENT CONSTRUCTION
CHAPTER AU1
SCOPE AND ADMINISTRATION
SECTION AU101
ADMINISTRATION
SECTION AU102
APPLICABILITY
SECTION AU103
POST DISASTER EVENT INSPECTIONS GUIDELINES
See Section AU605 for Placards that may be reproduced for use in the field during evaluations. The jurisdiction shall alter placards to meet the jurisdiction and building department's requirements.
Figure AU103.3 Post Disaster Building Safety Evaluation Chart a
(a)When Disaster Strikes by the International Code Council, Inc., Seventh Printing: November 2011, copyright 2007
CHAPTER AU2
DEFINITIONS
SECTION AU201
GENERAL
SECTION AU202
DEFINITIONS
500-YEAR FLOOD. Flood having a 0.2% annual probability of being equaled or exceeded.
ADVISORY BASE FLOOD ELEVATION (ABFE).
An advisory base flood elevation (BFE) issued by the Federal Emergency Management Agency (FEMA) that reflects post-storm conditions and vulnerability to damages from future flooding.
BASE FLOOD. Flood having a 1% chance of being equaled or exceeded in any given year, also referred to as the 100-year flood.
BASE FLOOD ELEVATION (BFE). The elevation of flooding, including wave height, having a 1% chance of being equaled or exceeded in any given year established relative to the National Geodetic Vertical Datum (NGVD), North American Vertical Datum (NAVD) or other datum specified on the Flood Insurance Rate Map (FIRM).
BUILDING OFFICIAL. The officer or other designated authority charged with the administration and enforcement of the International Residential Code, or the building official's duly authorized representative.
DESIGN FLOOD. The greater of the following two flood events:
DESIGN FLOOD ELEVATION (DFE). The elevation of the design flood, including wave height, relative to the datum specified on the community's legally designated flood hazard map. In areas designated as Zone AO, the design flood elevation shall be the elevation of the highest existing grade of the building's perimeter plus the depth number (in feet) specified on the flood hazard map.
FLOOD [DAMAGE]-RESISTANT MATERIAL. Any building product [material, component or system] capable of withstanding direct and prolonged contact with floodwaters without sustaining significant damage.
FLOOD HAZARD AREA. The area subject to flooding during the design flood.
FLOOD HAZARD MAP. Map delineating flood hazard areas adopted by the authority having jurisdiction.
FLOOD INSURANCE RATE MAP (FIRM). An official map of a community on which the Federal Emergency Management Agency (FEMA) has delineated both the special flood hazard areas and the risk premium zones applicable to the community.
FREEBOARD. A factor of safety expressed in feet above a flood level for purposes of floodplain management.
FUTURE-CONDITIONS FLOOD. The flood having a 1% chance of being equaled or exceeded in any given year based on future-conditions hydrology. Also known as the 100-year future-conditions flood.
FUTURE-CONDITIONS FLOOD ELEVATION. The flood standard equal to or higher than the Base Flood Elevation. The future-conditions flood elevation is defined as the highest water surface anticipated at any given point during the future-conditions flood.
CHAPTER AU3
FLOOD-RESISTANT CONSTRUCTION
Forward: This appendix provides three different options for increased freeboard. The jurisdiction may pick only one option that is higher than previously adopted and enforced by the jurisdiction. The National Flood Insurance Program (NFIP) minimum standards reference Base Flood Elevation without any freeboard in high risk flood hazard areas. Due to the flood damage prevention updates performed during the Map Modernization initiative that led to flood risks being digitally identified in all 159 Georgia counties, all Georgia NFIP participating communities have freeboard standards that meet or exceed the 1 foot standard used in the State model ordinances for areas where BFEs have been established.
SECTION AU301
HAZARD IDENTIFICATION
SECTION AU302
SCOPE
OPTION A - FLOOD ELEVATION
The higher of:
OPTION B - FLOOD ELEVATION
The higher of:
OPTION C - FLOOD ELEVATION
The higher of:
SECTION AU303
FLOOD DAMAGE-RESISTANT MATERIALS
Building components and materials located below the increase to base flood elevation as determined by the local jurisdiction in accordance with AU302.1 shall be flood damage-resistant as defined by Section AU303.1.
CHAPTER AU4
HIGH-WIND RESISTIVE CONSTRUCTION
Forward: This appendix provides four different options for increased wind speed. The jurisdiction may pick only one option that is higher than the mapped wind speed shown in the International Residential Code.
SECTION AU401
GENERAL
SECTION AU402
OPTION A - MINIMUM WIND SPEED 100 MPH
Guide to Wood Construction in High Wind Areas for One- and Two-Family Dwellings: 100 MPH Exposure B (WFCM); or
Figure U402.2b
Figure AU402.2.1b
Roof Sheathing Attachment Detail
Figure AU402.2.2b
Gable End Wall Connection Detail
Figure AU402.2.3b
Gable End Wall Sheathing Detail
Figure AU402.2.4b
Roof Framing to Wall Connection Detail
Figure AU402.2.5b
Sheathing Attachment at Elevated Floor Level Detail
Figure AU402.2.6ab
Wall Sheathing Attachment Detail
Figure AU402.2.6b Panel Splice Detail
Figure AU402.2.8b
Wall Sheathing to Sill Plate Connection Detail
Figure AU402.2.9b
Anchor Bolt Connection Detail
Figure AU402.2.10c
Top Plate Intersection Detail
SECTION AU403
OPTION B -MINIMUM WIND SPEED 110 MPH
SECTION AU404
OPTION C -MINIMUM WIND SPEED 120 MPH
SECTION AU405
OPTION D - MINIMUM WIND SPEED 130 MPH
SECTION AU406
FASTENERS AND CONNECTORS FOR CLADDING
SECTION AU407
FENESTRATION
SECTION AU408
ROOFING
Exception: As an alternative, adhered underlayment complying with ASTM D 1970 shall be permitted.
Figure AU408.2d
CHAPTER AU5
RESIDENTIAL STORM SHELTERS AND SAFE ROOMS
SECTION AU501
GENERAL
SECTION AU502
RESIDENTIAL STORM SHELTERS AND SAFE ROOMS
CHAPTER AU6
RESOURCES
SECTION AU601
CONTACTS
Georgia Department of Community Affairs (DCA) Construction Codes
Georgia State Amendments to the State Minimum
Standard Codes
Phone: 404-679-3118
Georgia Department of Natural Resources (DNR)
Floodplain Management
4220 International Parkway, Ste. 101
Atlanta, GA 30354-3902
Phone: 404-675-1757
Federal Emergency Management Agency (FEMA)
www.fema.gov; www.floodsmart.gov
www.fema.gov/rebuild/buildingscience/
FEMA Publications and Technical Bulletins:
www.fema.gov/library/index.jsp
www.fema.gov/plan/prevent/floodplain/techbul.shtm
Georgia Emergency Management Agency (GEMA)
Georgia Office of Homeland Security
P.O. Box 18055
Atlanta, GA 30316-0055
www.ready.ga.gov
Phone: 404-635-7000
Georgia Association of Regional Commissions (GARC)
http://garc.ga.gov/main.php?Regional-Commissions-2
(for assistance in identifying Flood Hazard Areas)
International Code Council (ICC)
National Weather Service
www.srh.weather.gov
State Fire Marshal's Office
2 Martin Luther King Jr. Drive
Suite 920 / West Tower
Atlanta, Georgia 30334
Phone: 404-656-7087
SECTION AU602
EMERGENCY INSPECTION KIT e
[] Staff's disaster response management plan | [] Work gloves | [] Envelope for expense receipts |
[] Team contact list | [] Steel toe and waterproof boots | [] Compass, GPS unit |
[] Area maps | [] Whistle | [] Backpack, waistpack |
[] Official identification | [] First aid kit | [] Flashlight and extra batteries |
[] Personal identification | [] Latex gloves | [] Battery-operated radio |
[] Inspection forms and placards | [] Safety glasses | [] Duct tape |
[] Communication equipment | [] Sunglasses | |
[] Clipboard | [] Pocket knife | |
[] Hard hat | [] Matches | |
[] Orange safety vest | [] Antibacterial hand wipes or alcohol-based hand sanitizer | |
[] Dust mask | [] Insect repellant (w/Deet or Picaridin) | |
[] Sunscreen (SPF 15 or greater) | ||
[] Camera | ||
[] Black markers | ||
[] Pens & pencils | ||
Remember to grab: | ||
[] Staples & stapler | [] Personal identification | [] Cell phone and charger |
[] Staple gun | [] Rain gear, extra clothing | [] Cash for personal expenses |
[] Calculator | [] Water bottle | [] Toiletries |
[] Tire repair kit | [] Prescription medication |
SECTION AU603
SAFETY TIPS a
SECTION AU604
MAJOR DISASTER PROCESS
(from link http://www.fema.gov/hazard/dproc.shtm)
A Major Disaster Declaration usually follows these steps:
Incident occurs and local government responds, supplemented by neighboring communities and volunteer agencies. If overwhelmed, turn to the state for assistance;Generally the local government will issue a local state of emergency
The State responds with state resources, such as the National Guard and state agencies;Prior to committing state resources, the Governor will declare a state of emergency in the counties impacted by the event for which assistance is needed.
Damage assessment by local, state, federal, and volunteer organizations determine losses and recovery needs;Generally the locals will submit a preliminary damage assessment to the State and the State will review and determine if state and/or federal assistance is needed. If federal assistance is needed, the state will request FEMA perform a preliminary joint damage assessment. If the Governor determines that the incident is of such severity and magnitude that effective response is beyond the capabilities of the State and the affected local governments then supplementary Federal assistance is requested (next step).
A Major Disaster Declaration is requested by the Governor, based on the damage assessment, and agreement to commit state funds and resources to the long-term recovery; FEMA evaluates the request and recommends action to the White House based on the disaster, the local community and the state's ability to recover; The President approves the request or FEMA informs the Governor it has been denied. This decision process could take a few hours or several weeks depending on the nature of the disaster.SECTION AU605
SAMPLE EVALUATION FORMS AND INSPECTION PLACARDS e (following pages)
Figure AU605.1 e
Figure AU605.2 e
Figure AU605.3 e
Figure AU605.4 e
Figure AU605.5 e
CHAPTER AU7
REFERENCES
REFERENCED STANDARDS
ASCE Standards ASCE/SEI 24-05 Flood Resistant Design and Construction
FEMA P-320, Third Edition / August 2008 Taking Shelter From the Storm: Building a Safe Room For Your Home or Small Business, Includes Construction Plans and Cost Estimates
FEMA 361, Second Edition / August 2008 Design and Construction Guidance for Community Safe Rooms
FEMA Technical Bulletin 2, Table 2. Types, Uses, and Classifications of Materials
REFERENCED RESOURCES
Index of Figures:
Figure AU103.3 Post Disaster Building Safety Evaluation Chart a ................................................. 10
Figure AU402.2 Prescriptive wood frame construction method deemed to comply with 100 mph ................................................. 14
Figure AU402.2.1 Roof Sheathing Attachment Detail ................................................. 15
Figure AU402.2.2 Gable End Wall Connection Detail ................................................. 15
Figure AU402.2.3 Gable End Wall Sheathing Detail ................................................. 16
Figure AU402.2.4 Roof Framing to Wall Connection Detail ................................................. 16
Figure AU402.2.5 Sheathing Attachment at Elevated Floor Level Detail ................................................. 17
Figure AU402.2.6a Wall Sheathing Attachment Detail ................................................. 17
Figure AU402.2.6b Panel Splice Detail ................................................. 17
Figure AU402.2.8 Wall Sheathing to Sill Plate Connection Detail ................................................. 18
Figure AU402.2.9 Anchor Bolt Connection Detail ................................................. 18
Figure AU402.2.10 Top Plate Intersection Detail ................................................. 18
Figure AU408.2 Roof Shingle Nailing Detail ................................................. 20
Figure AU605.1 ATC-45 Rapid Evaluation Form ................................................. 24
Figure AU605.2 ATC-45 Detail Evaluation Form ................................................. 25
Figure AU605.3 Inspected Placard ................................................. 27
Figure AU605.4 Restricted Placard ................................................. 28
Figure AU605.5 Unsafe Placard ................................................. 29
End of Amendments.
Ga. Comp. R. & Regs. R. 110-11-1-.25
O.C.G.A. § 8-2-20 et seq.