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eLibrary > North Carolina State Building Code: Energy Conservation Code >

North Carolina State Building Code: Energy Conservation Code, 2024

COPYRIGHT
NORTH CAROLINA STATE BUILDING CODE COUNCIL
NORTH CAROLINA STATE BUILDING CODE COUNCILSUPER COMMITTEE MEMBERS
PREFACE
ARRANGEMENT AND FORMAT OF THE 2021 IECC
TABLE OF CONTENTS
IECC—COMMERCIAL PROVISIONS [Go to Page]
TABLE OF CONTENTS
CHAPTER 1 [CE] SCOPE AND ADMINISTRATION [Go to Page]
PART 1—SCOPE AND APPLICATION [Go to Page]
SECTION C101 SCOPE AND GENERAL REQUIREMENTS
SECTION C102 ALTERNATIVE MATERIALS, DESIGN AND METHODS OF CONSTRUCTION AND EQUIPMENT
PART 2—ADMINISTRATION AND ENFORCEMENT [Go to Page]
SECTION C103 CONSTRUCTION DOCUMENTS
CHAPTER 2 [CE] DEFINITIONS [Go to Page]
SECTION C201 GENERAL
SECTION C202 GENERAL DEFINITIONS
CHAPTER 3 [CE] GENERAL REQUIREMENTS [Go to Page]
SECTION C301 CLIMATE ZONES [Go to Page]
FIGURE C301.1 CLIMATE ZONES
TABLE C301.1 NORTH CAROLINA CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY COUNTY [Go to Page]
TABLE C301.1—CONTINUED CLIMATE ZONES, MOISTURE REGIMES, AND WARM HUMIDDESIGNATIONS BY STATE, COUNTY AND TERRITORYA
(EQUATION 3-1)
(EQUATION 3-2)
(EQUATION 3-3)
TABLE C301.3 THERMAL CLIMATE ZONE DEFINITIONS
SECTION C302 DESIGN CONDITIONS
SECTION C303 MATERIALS, SYSTEMS AND EQUIPMENT [Go to Page]
TABLE C303.1.3(1)DEFAULT GLAZED WINDOW, GLASS DOOR AND SKYLIGHT U-FACTORS
TABLE C303.1.3(2)DEFAULT OPAQUE DOOR U-FACTORS
TABLE C303.1.3(3)DEFAULT GLAZED FENESTRATION SHGC AND VT
CHAPTER 4 [CE] COMMERCIAL ENERGY EFFICIENCY [Go to Page]
SECTION C401 GENERAL
SECTION C402 BUILDING ENVELOPE REQUIREMENTS [Go to Page]
TABLE C402.1.1.1 FENESTRATION THERMAL ENVELOPE MAXIMUM REQUIREMENTS
TABLE C402.1.3 OPAQUE THERMAL ENVELOPE INSULATION COMPONENT MINIMUM REQUIREMENTS, R-VALUE METHODA
(EQUATION 4-1)
TABLE C402.1.4 OPAQUE THERMAL ENVELOPE ASSEMBLY MAXIMUM REQUIREMENTS, U-FACTOR METHODA, B
TABLE C402.1.4.2 EFFECTIVE R-VALUES FOR STEEL STUD WALL ASSEMBLIES
(EQUATION 4-2)
TABLE C402.3 MINIMUM ROOF REFLECTANCE AND EMITTANCE OPTIONSA
(EQUATION 4-3)
TABLE C402.4 BUILDING ENVELOPE FENESTRATION MAXIMUM U-FACTOR AND SHGCA REQUIREMENTS
TABLE C402.5.2 PRESSURE/LEAKAGE CORRELATION
TABLE C402.5.3 MAXIMUM AIR LEAKAGE RATE FOR FENESTRATION ASSEMBLIES
SECTION C403 BUILDING MECHANICAL SYSTEMS [Go to Page]
TABLE C403.1.2(1)MAXIMUM DESIGN MECHANICAL LOAD COMPONENT(DESIGN MLC)
TABLE C403.1.2(2)MAXIMUM ANNUALIZED MECHANICAL LOAD COMPONENT(ANNUALIZED MLC)
(EQUATION 4-6)
(EQUATION 4-7)
TABLE C403.3.2(1)ELECTRICALLY OPERATED UNITARY AIR CONDITIONERS AND CONDENSING UNITS—MINIMUM EFFICIENCY REQUIREMENTS [Go to Page]
TABLE C403.3.2(1)—CONTINUED ELECTRICALLY OPERATED UNITARY AIR CONDITIONERS AND CONDENSING UNITS—MINIMUM EFFICIENCY REQUIREMENTS
TABLE C403.3.2(1)—CONTINUED ELECTRICALLY OPERATED UNITARY AIR CONDITIONERS AND CONDENSING UNITS—MINIMUM EFFICIENCY REQUIREMENTS
TABLE C403.3.2(2)ELECTRICALLY OPERATED AIR-COOLED UNITARY HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTS [Go to Page]
TABLE C403.3.2(2)—CONTINUED ELECTRICALLY OPERATED AIR-COOLED UNITARY HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTS
TABLE C403.3.2(3)WATER-CHILLING PACKAGES—MINIMUM EFFICIENCY REQUIREMENTS
TABLE C403.3.2(4)ELECTRICALLY OPERATED PACKAGED TERMINAL AIR CONDITIONERS, PACKAGED TERMINAL HEAT PUMPS, SINGLE-PACKAGE VERTICAL AIR CONDITIONERS, SINGLE-PACKAGE VERTICAL HEAT PUMPS, ROOM AIR CONDITIONERSAND ROOM AIR-CONDITIONER HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSE [Go to Page]
TABLE C403.3.2(4)—CONTINUED ELECTRICALLY OPERATED PACKAGED TERMINAL AIR CONDITIONERS, PACKAGED TERMINAL HEAT PUMPS,SINGLE-PACKAGE VERTICAL AIR CONDITIONERS, SINGLE-PACKAGE VERTICAL HEAT PUMPS, ROOM AIR CONDITIONERSAND ROOM AIR-CONDITIONER HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSE
TABLE C403.3.2(5)WARM-AIR FURNACES AND COMBINATION WARM-AIR FURNACES/AIR-CONDITIONING UNITS, WARM-AIR DUCT FURNACES AND UNIT HEATERS—MINIMUM EFFICIENCY REQUIREMENTSG
TABLE C403.3.2(6)GAS- AND OIL-FIRED BOILERS—MINIMUM EFFICIENCY REQUIREMENTSI
TABLE C403.3.2(7)PERFORMANCE REQUIREMENTS FOR HEAT REJECTION EQUIPMENT—MINIMUM EFFICIENCY REQUIREMENTSI [Go to Page]
TABLE C403.3.2(7)—CONTINUED PERFORMANCE REQUIREMENTS FOR HEAT REJECTION EQUIPMENT—MINIMUM EFFICIENCY REQUIREMENTSI
TABLE C403.3.2(8)ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AIR CONDITIONERS—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.2(9)ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AND APPLIED HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSB [Go to Page]
TABLE C403.3.2(9)—CONTINUED ELECTRICALLY OPERATED VARIABLE-REFRIGERANT-FLOW AND APPLIED HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.2(10)FLOOR-MOUNTED AIR CONDITIONERS AND CONDENSING UNITS SERVING COMPUTER ROOMS—MINIMUM EFFICIENCY REQUIREMENTSB [Go to Page]
TABLE C403.3.2(10)—CONTINUED FLOOR-MOUNTED AIR CONDITIONERS AND CONDENSING UNITS SERVINGCOMPUTER ROOMS—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.2(11)VAPOR-COMPRESSION-BASED INDOOR POOL DEHUMIDIFIERS—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.2(12)ELECTRICALLY OPERATED DX-DOAS UNITS, SINGLE-PACKAGE AND REMOTE CONDENSER, WITHOUT ENERGY RECOVERY—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.2(13)ELECTRICALLY OPERATED DX-DOAS UNITS, SINGLE-PACKAGE AND REMOTE CONDENSER, WITH ENERGY RECOVERY—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.2(14)ELECTRICALLY OPERATED WATER-SOURCE HEAT PUMPS—MINIMUM EFFICIENCY REQUIREMENTSC
TABLE C403.3.2(15)HEAT-PUMP AND HEAT RECOVERY CHILLER PACKAGES—MINIMUM EFFICIENCY REQUIREMENTSG
TABLE C403.3.2(16)CEILING-MOUNTED COMPUTER-ROOM AIR CONDITIONERS—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.2(16)—CONTINUEDCEILING-MOUNTED COMPUTER-ROOM AIR CONDITIONERS—MINIMUM EFFICIENCY REQUIREMENTSB
TABLE C403.3.3 MAXIMUM HOT GAS BYPASS CAPACITY
TABLE C403.3.4 BOILER TURNDOWN
TABLE C403.4.4 VARIABLE SPEED DRIVE (VSD) REQUIREMENTS FOR DEMAND-CONTROLLED PUMPS
TABLE C403.5(1)MINIMUM CHILLED-WATER SYSTEM COOLING CAPACITY FOR DETERMINING ECONOMIZER COOLING REQUIREMENTS
TABLE C403.5(2)EQUIPMENT EFFICIENCY PERFORMANCE EXCEPTION FOR ECONOMIZERS
TABLE C403.5.1 DX COOLING STAGE REQUIREMENTS FOR MODULATING AIRFLOW UNITS
TABLE C403.5.3.3HIGH-LIMIT SHUTOFF CONTROL SETTING FOR AIR ECONOMIZERSB
TABLE C403.7.4.2(1)ENERGY RECOVERY REQUIREMENT (VENTILATION SYSTEMS OPERATING LESS THAN 8,000 HOURS PER YEAR)
TABLE C403.7.4.2(2)ENERGY RECOVERY REQUIREMENT (VENTILATION SYSTEMS OPERATING NOT LESS THAN 8,000 HOURS PER YEAR)
TABLE C403.7.5 MAXIMUM NET EXHAUST FLOW RATE, CFM PER LINEAR FOOT OF HOOD LENGTH
TABLE C403.8.1(1)FAN POWER LIMITATION
TABLE C403.8.1(2)FAN POWER LIMITATION PRESSURE DROP ADJUSTMENT
TABLE C403.8.5 LOW-CAPACITY VENTILATION FAN EFFICACYA
TABLE C403.8.6.1 COOLING SYSTEMS
TABLE C403.11.2.1(1)WALK-IN COOLER AND FREEZER DISPLAY DOOR EFFICIENCY REQUIREMENTSA
TABLE C403.11.2.1(2)WALK-IN COOLER AND FREEZER NONDISPLAY DOOR EFFICIENCY REQUIREMENTSA
TABLE C403.11.1 MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL REFRIGERATORS AND FREEZERS AND REFRIGERATION
TABLE C403.11.1—CONTINUED MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL REFRIGERATORS AND FREEZERS AND REFRIGERATION
TABLE C403.11.2.1(3)WALK-IN COOLER AND FREEZER REFRIGERATION SYSTEM EFFICIENCY REQUIREMENTS
(EQUATION 4-8)
TABLE C403.12.3 MINIMUM PIPE INSULATION THICKNESS (IN INCHES)A, C
SECTION C404 SERVICE WATER HEATING [Go to Page]
TABLE C404.2 MINIMUM PERFORMANCE OF WATER-HEATING EQUIPMENT [Go to Page]
TABLE C404.2—CONTINUED MINIMUM PERFORMANCE OF WATER-HEATING EQUIPMENT
TABLE C404.5.1 PIPING VOLUME AND MAXIMUM PIPING LENGTHS
TABLE C404.5.2.1 INTERNAL VOLUME OF VARIOUS WATER DISTRIBUTION TUBING
SECTION C405 ELECTRICAL POWER AND LIGHTING SYSTEMS [Go to Page]
(EQUATION 4-9)
FIGURE C405.2.4.2(1)PRIMARY AND SECONDARY SIDELIT DAYLIGHT ZONES
FIGURE C405.2.4.2(2)DAYLIGHT ZONE UNDER A ROOFTOP MONITOR
FIGURE C405.2.4.2(3)DAYLIGHT ZONE UNDER A SLOPED ROOFTOP MONITOR
FIGURE C405.2.4.3 TOPLIT DAYLIGHT ZONE
FIGURE C405.2.4.4 DAYLIGHT ZONES AT A MULTISTORY ATRIUM
(EQUATION 4-10)
(EQUATION 4-11)
TABLE C405.3.2(1)INTERIOR LIGHTING POWER ALLOWANCES: BUILDING AREA METHOD
TABLE C405.3.2(2)INTERIOR LIGHTING POWER ALLOWANCES: SPACE-BY-SPACE METHOD [Go to Page]
TABLE C405.3.2(2)—CONTINUED INTERIOR LIGHTING POWER ALLOWANCES: SPACE-BY-SPACE METHOD
TABLE C405.3.2(2)—CONTINUED INTERIOR LIGHTING POWER ALLOWANCES: SPACE-BY-SPACE METHOD
TABLE C405.3.2(2)—CONTINUED INTERIOR LIGHTING POWER ALLOWANCES: SPACE-BY-SPACE METHOD
TABLE C405.5.2(1)EXTERIOR LIGHTING ZONES
TABLE C405.7 MINIMUM NOMINAL EFFICIENCY LEVELS FOR DOE 10 CFR 431 LOW-VOLTAGE DRY-TYPE DISTRIBUTION TRANSFORMERS
TABLE C405.5.2(2)LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS
TABLE C405.5.2(3)INDIVIDUAL LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS
TABLE C405.8(1) MINIMUM NOMINAL FULL-LOAD EFFICIENCY FOR NEMA DESIGN A, NEMA DESIGN B, AND IEC DESIGN N MOTORS (EXCLUDING FIRE PUMP) ELECTRIC MOTORS AT 60 HZA, B
TABLE C405.8(2)MINIMUM NOMINAL FULL-LOAD EFFICIENCY FOR NEMA DESIGN C AND IEC DESIGN H MOTORS AT 60 HZA
TABLE C405.8(3)MINIMUM AVERAGE FULL-LOAD EFFICIENCY POLYPHASE SMALL ELECTRIC MOTORSA
TABLE C405.8(4)MINIMUM AVERAGE FULL-LOAD EFFICIENCY FOR CAPACITOR-START CAPACITOR-RUN AND CAPACITOR-START INDUCTION-RUN SMALL ELECTRIC MOTORSA
TABLE C405.12.2ENERGY USE CATEGORIES
SECTION C406 ADDITIONAL EFFICIENCY REQUIREMENTS [Go to Page]
TABLE C406.1(1)ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP B OCCUPANCIES
TABLE C406.1(2)ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP R AND I OCCUPANCIES
TABLE C406.1(3)ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP E OCCUPANCIES
TABLE C406.1(4)ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP M OCCUPANCIES
(EQUATION 4-12)
TABLE C406.1(5)ADDITIONAL ENERGY EFFICIENCY CREDITS FOR OTHERA OCCUPANCIES
(EQUATION 4-13)
(EQUATION 4-14)
TABLE C406.9
TABLE C406.10.2 ENERGY USE CATEGORIES
(EQUATION 4-15)
TABLE C406.12(1)MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL FRYERS
TABLE C406.12(2)MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL STEAM COOKERS
TABLE C406.12(3)MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL DISHWASHERS
TABLE C406.12(4)MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL OVENS
SECTION C407 TOTAL BUILDING PERFORMANCE [Go to Page]
TABLE C407.2 REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE
TABLE C407.4.1(1)SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS [Go to Page]
TABLE C407.4.1(1)—CONTINUED SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS
TABLE C407.4.1(1)—CONTINUED SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS
TABLE C407.4.1(2)HVAC SYSTEMS MAP
TABLE C407.4.1(3)SPECIFICATIONS FOR THE STANDARD REFERENCE DESIGN HVAC SYSTEM DESCRIPTIONS [Go to Page]
TABLE C407.4.1(3)—CONTINUED SPECIFICATIONS FOR THE STANDARD REFERENCE DESIGN HVAC SYSTEM DESCRIPTIONS
TABLE C407.4.1(4)NUMBER OF CHILLERS
TABLE C407.4.1(5)WATER CHILLER TYPES
SECTION C408 MAINTENANCE INFORMATION AND SYSTEM COMMISSIONING [Go to Page]
FIGURE C408.2.4 COMMISSIONING COMPLIANCE CHECKLIST
CHAPTER 5 [CE] EXISTING BUILDINGS [Go to Page]
SECTION C501 GENERAL
SECTION C502 ADDITIONS
SECTION C503 ALTERATIONS
SECTION C504 REPAIRS
SECTION C505 CHANGE OF OCCUPANCY OR USE
CHAPTER 6 [CE] REFERENCED STANDARDS [Go to Page]
AAMA
AHAM
AHRI
AMCA
ANSI
APSP
ASABE
ASHRAE
ASME
ASTM
CRRC
CSA
CTI
DASMA
DOE
ICC
IEEE
IES
ISO
NEMA
NFPA
NFRC
SMACNA
UL
US-FTC
WDMA
APPENDIX CA BOARD OF APPEALS—COMMERCIAL
APPENDIX CB SOLAR-READY ZONE—COMMERCIAL [Go to Page]
SECTION CB101 SCOPE
SECTION CB102 GENERAL DEFINITION
SECTION CB103 SOLAR-READY ZONE
APPENDIX CC ZERO ENERGY COMMERCIAL BUILDING PROVISIONS [Go to Page]
SECTION CC101 GENERAL
SECTION CC102 DEFINITIONS
SECTION CC103 MINIMUM RENEWABLE ENERGY [Go to Page]
(EQUATION CC-1)
TABLE CC103.1 ENERGY UTILIZATION INTENSITY FOR BUILDING TYPES AND CLIMATES (KBTU/FT² – YR)
(EQUATION CC-2)
TABLE CC103.3.3 DEFAULT OFF-SITE RENEWABLE ENERGY PROCUREMENT METHODS, CLASSES AND COEFFICIENTS
INDEX A
IECC—RESIDENTIAL PROVISIONS [Go to Page]
TABLE OF CONTENTS
CHAPTER 1 [RE] SCOPE AND ADMINISTRATION [Go to Page]
PART 1—SCOPE AND APPLICATION [Go to Page]
SECTION R101 SCOPE AND GENERAL REQUIREMENTS
SECTION R102 ALTERNATIVE MATERIALS, DESIGN AND METHODS OF CONSTRUCTION AND EQUIPMENT
PART 2—ADMINISTRATION AND ENFORCEMENT [Go to Page]
SECTION R103 CONSTRUCTION DOCUMENTS
SECTION R104 REFERENCED STANDARDS
CHAPTER 2 [RE] DEFINITIONS [Go to Page]
SECTION R201 GENERAL
SECTION R202 GENERAL DEFINITIONS
CHAPTER 3 [RE] GENERAL REQUIREMENTS [Go to Page]
SECTION R301 CLIMATE ZONES [Go to Page]
FIGURE R301.1 CLIMATE ZONES
TABLE R301.1 NORTH CAROLINA CLIMATE ZONES, MOISTURE REGIMES, AND WARM HUMID DESIGNATIONS BY COUNTY [Go to Page]
TABLE R301.1—CONTINUED NORTH CAROLINA CLIMATE ZONES, MOISTURE REGIMES, AND WARM HUMID DESIGNATIONS BY COUNTY
(EQUATION 3-1)
(EQUATION 3-2)
(EQUATION 3-3)
TABLE R301.3THERMAL CLIMATE ZONE DEFINITIONS
SECTION R302 DESIGN CONDITIONS
SECTION R303 MATERIALS, SYSTEMS AND EQUIPMENT [Go to Page]
TABLE R303.1.3(1)DEFAULT GLAZED WINDOW, GLASS DOOR AND SKYLIGHT U-FACTORS
TABLE R303.1.3(2)DEFAULT OPAQUE DOOR U-FACTORS
TABLE R303.1.3(3)DEFAULT GLAZED FENESTRATION SHGC AND VT
CHAPTER 4 [RE] RESIDENTIAL ENERGY EFFICIENCY [Go to Page]
SECTION R401 GENERAL
SECTION R402 BUILDING THERMAL ENVELOPE [Go to Page]
TABLE R402.1.2 MAXIMUM ASSEMBLY U-FACTORSA AND FENESTRATION REQUIREMENTS
TABLE R402.1.3 INSULATION MINIMUM R-VALUES AND FENESTRATION REQUIREMENTS BY COMPONENTA
TABLE R402.2.6 STEEL-FRAME CEILING, WALL AND FLOOR INSULATION R-VALUES
TABLE R402.2.10 WALL INSULATION ALLOWANCES FOR TERMITE TREATMENT AND INSULATION GAPS
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING AND INSULATION INSTALLATIONA [Go to Page]
TABLE R402.4.1.1—CONTINUED AIR BARRIER, AIR SEALING AND INSULATION INSTALLATIONA
SECTION R403 SYSTEMS [Go to Page]
TABLE R403.6.2 WHOLE-HOUSE MECHANICAL VENTILATION SYSTEM FAN EFFICACYA
SECTION R404 ELECTRICAL POWER AND LIGHTING SYSTEMS
SECTION R405 TOTAL BUILDING PERFORMANCE [Go to Page]
TABLE R405.2 REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE
TABLE R405.4.2(1)SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS [Go to Page]
TABLE R405.4.2(1)—CONTINUED SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS
TABLE R405.4.2(1)—CONTINUED SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS
TABLE R405.4.2(1)—CONTINUED SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS
TABLE R405.4.2(2) DEFAULT DISTRIBUTION SYSTEM EFFICIENCIES FOR PROPOSED DESIGNSA
SECTION R406 ENERGY RATING INDEX COMPLIANCE ALTERNATIVE [Go to Page]
TABLE R406.2 REQUIREMENTS FOR ENERGY RATING INDEX
(EQUATION 4-1)
(EQUATION 4-2)
TABLE R406.5 MAXIMUM ENERGY RATING INDEX
SECTION R407 TROPICAL CLIMATE REGION COMPLIANCE PATH
SECTION R408 ADDITIONAL EFFICIENCY PACKAGE OPTIONS
CHAPTER 5 [RE] EXISTING BUILDINGS [Go to Page]
SECTION R501 GENERAL
SECTION R502 ADDITIONS
SECTION R503 ALTERATIONS
SECTION R504 REPAIRS
SECTION R505 CHANGE OF OCCUPANCY OR USE
CHAPTER 6 [RE] REFERENCED STANDARDS [Go to Page]
AAMA
ACCA
APSP
ASHRAE
ASTM
CSA
DASMA
HVI
ICC
IEEE
NEMA
NFPA
NFRC
RESNET
UL
US-FTC
WDMA
APPENDIX R1 RESIDENTIAL REQUIREMENTS [Go to Page]
TABLE R401.3ENERGY EFFICIENCY CERTIFICATE
APPENDIX R1.2 INSULATION AND AIR SEALING DETAILS [Go to Page]
APPENDIX R1.2.1 (SECTION R402.2.1)[2024]
APPENDIX R1.2.2 (SECTION R402.2.10)
APPENDIX R1.2.3 (SECTION R402.4.1.1, TABLE R402.4.1.1) [Go to Page]
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING AND INSULATION INSTALLATION
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING AND INSULATION INSTALLATION
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – GENERAL REQUIREMENTS
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – GENERAL REQUIREMENTS
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – SHAFTS, PENETRATIONS. FLUE SHAFT.
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – WALLS, KNEE WALLS, STICK FRAMED ROOF
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – WALLS, KNEE WALLS, TRUSSES.
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – CANTILEVERED FLOOR – DIMENSIONAL LUMBER.
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – CANTILEVERED FLOOR – FLOOR TRUSSES
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – CANTILEVERED FLOOR – I-JOISTS
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – SHAFTS, PENETRATIONS
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – CEILING/ATTIC – DROPPED SOFFIT.
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – HVAC REGISTER BOOTS - FLOOR.
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – HVAC REGISTER BOOTS - CEILING
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – GENERAL REQUIREMENTS – HOUSEWRAP OPTION.
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – GENERAL REQUIREMENTS – SEALED SHEATHING OPTION
TABLE R402.4.1.1 AIR BARRIER, AIR SEALING, AND INSULATION INSTALLATION – PLUMBING, WIRING, OR OTHER OBSTRUCTIONS –EXHAUST FAN.
R402.4.6 ELECTRICAL AND COMMUNICATION OUTLET BOXES – FIELD-SEALED
R402.4.6 ELECTRICAL AND COMMUNICATION OUTLET BOXES – NEMA OS 4.
APPENDIX R2 FOAM PLASTIC DIAGRAMS [Go to Page]
R402.2.9 BASEMENT WALLS
R402.2.9.1 SLAB-ON-GRADE FLOORS
R402.2.9.1 SLAB-ON-GRADE FLOORS
APPENDIX R3 SAMPLE WORKSHEETS FOR RESIDENTIAL AIRAND DUCT LEAKAGE TESTING [Go to Page]
APPENDIX R3A NOT USED
APPENDIX R3B AIR SEALING: TESTING (SECTION R402.4.1.2)SAMPLE WORKSHEET – 4.0 ACH REQUIREMENT [Go to Page]
TABLE APPENDIX R3B R402.4.1.2ADJUSTMENT FOR DIFFERENT TEST PRESSURES
APPENDIX R3—SAMPLE WORKSHEETS FOR RESIDENTIAL AIR AND DUCT LEAKAGE TESTING
APPENDIX R3B1 AIR SEALING: TESTING (SECTION R402.4.1.2)SAMPLE WORKSHEET – 3.0 ACH REQUIREMENT
APPENDIX R3CDUCT SEALING. DUCT AIR LEAKAGE TEST (SECTIONS R403.3.2, SECTION R403.3.3)SAMPLE WORKSHEET
APPENDIX R3—SAMPLE WORKSHEETS FOR RESIDENTIAL AIR AND DUCT LEAKAGE TESTING
APPENDIX RA BOARD OF APPEALS—RESIDENTIAL DELETED
APPENDIX RB RESERVED
INDEX A
ICC EVALUATION SERVICE
ICC DIGITAL CODES PREMIUM [Go to Page]

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