ICC IECC SignificantChanges 2021 1stptg
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Significant Changes to the International Energy Conservation Code
| Published By | Publication Date | Number of Pages |
| ICC | 2021 | 177 |
Gain full access to the most critical updates to the International Energy Conservation Code® 2021 Edition , the real-world application of those changes, and why they originated—all in a single, easy-to-use resource. Significant Changes to the International Energy Conservation Code® 2021 Edition provides a comprehensive analysis of the significant changes in the new edition of the International Energy Conservation Code®, offering key insights into the implications of these changes. Each change analysis features the affected code sections and identifies the change as newly added text, a modification or clarification of the existing language or deleted text. Accompanying each change is a photograph, detailed illustration or comprehensive example to assist and enhance reader understanding. The book’s attention to detail, its logical organization, and its thorough yet concise coverage all make it an ideal tool for transitioning from the 2018 to the 2021 edition of the International Energy Conservation Code®.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | 2021 SIGNIFICANT CHANGES TO THE INTERNATIONAL ENERGY CONSERVATION CODE® |
| 2 | 2021 SIGNIFICANT CHANGES TO THE INTERNATIONAL ENERGY CONSERVATION CODE® TITLE PAGE |
| 3 | COPYRIGHT |
| 4 | CONTENTS |
| 7 | PREFACE |
| 12 | PART 1: COMMERCIAL ENERGY PROVISIONS: ADMINISTRATION |
| 13 | C103.1 DIGITAL PLANS IMAGE: PLANS MAY BE SUBMITTED DIGITALLY |
| 14 | C103.2 INFORMATION ON CONSTRUCTION DOCUMENTS |
| 15 | FIGURE: ENERGY COMPLIANCE PATH |
| 16 | C202 DEFINITION OF BIOGAS AND BIOMASS IMAGE: BIOMASS IS A FORM OF RENEWABLE ENERGY |
| 18 | C202 DEFINITIONS OF FAN EFFICIENCIES IMAGE: THE FAN ENERGY INDEX REPLACES THE FAN EFFICIENCY GRADE |
| 19 | PART 2: COMMERCIAL ENERGY PROVISIONS: GENERAL REQUIREMENTS |
| 20 | C301.3 CLIMATE ZONE DEFINITIONS IMAGE: THE IECC PROVISIONS ARE CLIMATE-SPECIFIC |
| 21 | EQUATION 3-1 EQUATION 3-2 |
| 22 | EQUATION 3-3 |
| 23 | TABLE C301.1 CLIMATE ZONES, MOISTURE REGIMES, AND WARM HUMID DESIGNATIONS BY STATE COUNTY AND TERRITORY |
| 24 | TABLE C301.1 (continued ) |
| 25 | TABLE C301.1 (continued ) |
| 26 | TABLE C301.1 (continued ) |
| 27 | FIGURE C301.1 CLIMATE ZONES |
| 28 | TABLE C301.3 THERMAL CLIMATE ZONE DEFINITIONS |
| 30 | PART 3: COMMERCIAL ENERGY PROVISIONS: ENERGY EFFICIENCY REQUIREMENTS |
| 32 | C401.2 COMPLIANCE PATHS IMAGE: COMMERCIAL PROJECTS MAY COMPLY WITH THE IECC OR ASHRAE 90.1 |
| 34 | C401.3 ENVELOPE CERTIFICATE SAMPLE THERMAL ENVELOPE CERTIFICATE |
| 36 | C402 BUILDING ENVELOPE IMAGE: EFFICIENT BUILDING ENVELOPES CONTRIBUTE TO THE RESILIENCY OF THE BUILDING |
| 37 | TABLE C402.1.3 MINIMUM R-VALUES IMAGE: R-VALUE IS USED TO MEASURE THERMAL RESISTANCE OF INSULATION |
| 38 | TABLE C402.1.3 OPAQUE THERMAL ENVELOPE INSULATION COMPONENT MINIMUM REQUIRMENTS |
| 39 | TABLE C402.1.4 INSULATION AND FENESTRATION U-FACTOR CRITERIA IMAGE: U-FACTOR IS USED TO MEASURE THERMAL TRANSMITTANCE OF FENESTRATION AND ENVELOPE ASSEMBLIES |
| 40 | TABLE C402.1.4 OPAQUE THERMAL ENVELOPE ASSEMBLY MAXIMUM REQUIREMENTS |
| 41 | TABLE C402.1.4 (Continued) |
| 42 | C402.1.4.1 AND C402.2.1 ROOF ASSEMBLY AND INSULATION IMAGE: ROOF INSULATION MAY COMPLY WITH THE R-VALUE OR U-FACTOR METHOD |
| 44 | TABLE C402.4 U-FACTOR AND SHGC REQUIREMENTS IMAGE: U-FACTOR AND SHGC REQUIREMENTS INDICATE HEAT TRANSMITTANCE OF FENESTRATION |
| 45 | TABLE C402.4 BUILDING ENVELOPE FENESTRATION MAXIMUM U-FACTOR AND SHGC REQUIREMENTS |
| 46 | C402.5 AIR LEAKAGE IMAGE: EXPANDED AIR LEAKAGE PROVISIONS INCLUDE TESTING REQUIREMENTS |
| 51 | C402.5.11 OPERABLE OPENINGS INTERLOCKING IMAGE: OPERABLE OPENINGS GREATER THAN 40 SQUARE FEET REQUIRE INTERLOCKING |
| 53 | C403 BUILDING MECHANICAL SYSTEMS |
| 54 | IMAGE: BUILDING MECHANICAL SYSTEMS ARE ADDRESSED IN SECTION C403 |
| 55 | C403.4.2.3 AUTOMATIC START AND STOP FIGURE: AUTOMATIC START AND STOP ARE BOTH REQUIRED |
| 56 | C403.8.3 FAN EFFICIENCY |
| 58 | C403.8.5 LOW-CAPACITY VENTILATION FANS TABLE C403.8.5 LOW-CAPACITY VENTILATION FAN EFFICACY IMAGE: LOW-CAPACITY VENTILATION FANS MUST MEET EFFICIENCY REQUIREMENTS |
| 60 | C405 ELECTRICAL POWER AND LIGHTING SYSTEMS |
| 61 | C405.2.1.2 OCCUPANT SENSOR CONTROLS IN WAREHOUSE STORAGE AREAS IMAGE: OCCUPANT SENSOR CONTROLS ARE REQUIRED IN WAREHOUSE STORAGE AREAS |
| 63 | C405.2.8 PARKING GARAGE LIGHTING CONTROL IMAGE: PARKING GARAGES MUST HAVE LIGHTING CONTROLS |
| 65 | C405.4 LIGHTING FOR PLANT GROWTH IMAGE: LIGHTING FOR PLANT GROWTH IS REGULATED BY THE IECC |
| 66 | C405.11 AUTOMATIC RECEPTACLE CONTROL IMAGE: CONTROLLED RECEPTACLES ARE NOW REQUIRED |
| 68 | C405.12 ENERGY MONITORING IMAGE: ENERGY MONITORING SUPPORTS EFFICIENT BUILDING OPERATIONS |
| 69 | TABLE C405.12.2 ENERGY USE CATEGORIES |
| 71 | C406 ADDITIONAL EFFICIENCY REQUIREMENTS |
| 72 | C406 ADDITIONAL EFFICIENCY REQUIREMENTS IMAGE: ADDITIONAL ENERGY EFFICIENCY REQUIREMENTS NOW CONSIDER CLIMATE AND OCCUPANCY TYPE |
| 73 | TABLE C406.1(1) ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP B OCCUPANCIES |
| 74 | 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 |
| 75 | TABLE C406.1(3) (Continued ) TABLE C406.1(4) ADDITIONAL ENERGY EFFICIENCY CREDITS FOR GROUP M OCCUPANCIES |
| 76 | TABLE C406.1(5) ADDITIONAL ENERGY EFFICIENCY CREDITS FOR OTHER OCCUPANCIES |
| 77 | EQUATION 4-12 |
| 78 | EQUATION 4-13 EQUATION 4-14 |
| 80 | TABLE 406.10.2 ENERGY USE CATEGORIES |
| 81 | EQUATION 4-15 TABLE C406.12(1) MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL FRYERS |
| 82 | TABLE C406.12(2) MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL STEAM COOKERS TABLE C406.12(3) MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL DISHWASHERS |
| 83 | TABLE C406.12(4) MINIMUM EFFICIENCY REQUIREMENTS: COMMERCIAL OVENS |
| 86 | C407 TOTAL BUILDING PERFORMANCE |
| 87 | C407.2 PERFORMANCE-BASED COMPLIANCE IMAGE: REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE COMPLIANCE ARE CLARIFIED |
| 88 | TABLE C407.2 REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE |
| 89 | PART 4: COMMERCIAL ENERGY PROVISIONS: COMMERCIAL APPENDICES |
| 90 | APPENDIX CA: BOARD OF APPEALS-COMMERCIAL IMAGE: A BOARD OF APPEALS REVIEWS EVIDENCE FROM APPELLANTS AND CODE OFFICIALS |
| 93 | CB103.7 ELECTRICAL ENERGY STORAGE SYSTEM-READY AREA IMAGE: BUILDINGS IN JURISDICTIONS ADOPTING THIS APPENDIX MUST BE ENERGY STORAGE READY |
| 95 | APPENDIX CC: ZERO ENERGY COMMERCIAL BUILDING PROVISIONS IMAGE: ON-SITE RENEWABLES |
| 96 | EQUATION CC-1 |
| 97 | TABLE CC103.1 ENERGY UTILIZATION INTENSITY FOR BUILDING TYPES AND CLIMATES |
| 98 | EQUATION CC-2 |
| 99 | TABLE CC103.3.3 DEFAULT OFF-SITE RENEWABLE ENERGY PROCUREMENT METHODS, CLASSES AND COEFFICIENTS |
| 100 | PART 5: RESIDENTIAL ENERGY PROVISIONS: ADMINISTRATION |
| 101 | R103.1 DIGITAL PLANS IMAGE: DIGITAL PLAN REVIEW |
| 102 | R103.2 INFORMATION ON CONSTRUCTION DOCUMENTS IMAGE: ENERGY COMPLIANCE PATH MUST BE NOTED ON CONSTRUCTION DOCUMENTS |
| 104 | R202 DEFINITION OF HIGH-EFFICACY LIGHT SOURCES IMAGE: HIGH-EFFICACY LIGHT SOURCES ARE REQUIRED IN ALL PERMANENTLY INSTALLED LIGHTING FIXTURES |
| 105 | R202 DEFINITION OF RENEWABLE ENERGY CERTIFICATION IMAGE: ON-SITE RENEWABLE ENERGY |
| 106 | PART 6: RESIDENTIAL ENERGY PROVISIONS: GENERAL REQUIREMENTS |
| 107 | R301.3 CLIMATE ZONE DEFINITIONS IMAGE: THE IECC PROVISIONS ARE CLIMATE SPECIFIC |
| 108 | EQUATION 3-1 EQUATION 3-2 |
| 109 | EQUATION 3-3 |
| 110 | TABLE R301.1 CLIMATE ZONES, MOISTURE REGIMES, AND WARM HUMID DESIGNATIONS BY STATE, COUNTY AND TERRITORY |
| 111 | TABLE R301.1 (continued ) |
| 112 | TABLE R301.1 (continued ) |
| 113 | TABLE R301.1 (continued ) |
| 114 | FIGURE R301.1 CLIMATE ZONES |
| 115 | TABLE R301.3 THERMAL CLIMATE ZONE DEFINITIONS |
| 117 | PART 7: RESIDENTIAL ENERGY PROVISIONS: ENERGY EFFICIENCY REQUIREMENTS |
| 119 | R401.2 COMPLIANCE PATHS IMAGE: RESIDENTIAL PROJECTS MUST COMPLY WITH ONE OF FOUR COMPLIANCE OPTIONS |
| 122 | R401.3 CERTIFICATE IMAGE: THE CERTIFICATE MUST NOW INCLUDE COMPLIANCE PATH, AMONG OTHER NEW ITEMS |
| 124 | R402 BUILDING ENVELOPE IMAGE: EFFICIENT BUILDING ENVELOPES REDUCE HEAT GAINS AND LOSSES |
| 125 | R402.1.2 INSULATION AND FENESTRATION CRITERIA IMAGE: U-FACTOR IS USED TO MEASURE THERMAL TRANSMITTANCE OF FENESTRATION AND ENVELOPE ASSEMBLIES |
| 126 | TABLE R402.1.2 INSULATION AND FENESTRATION U-FACTORS IMAGE: U-FACTORS HAVE BEEN DECREASED FOR GREATER EFFICIENCY |
| 127 | TABLE R402.1.2 MAXIMUM ASSEMBLY U-FACTORS AND FENESTRATION REQUIREMENTS |
| 128 | TABLE R402.1.3 INSULATION MINIMUM R-VALUES AND FENESTRATION REQUIREMENTS BY COMPONENT IMAGE: R-VALUES HAVE BEEN INCREASED FOR GREATER EFFICIENCY |
| 129 | TABLE R402.1.3 INSULATION MINIMUM R-VALUES AND FENESTRATION REQUIREMENTS BY COMPONENT |
| 131 | R402.2.8 BASEMENT WALLS IMAGE: UNCONDITIONED BASEMENTS ARE EXEMPT FROM BASEMENT WALL PROVISIONS |
| 133 | R402.4.1.2 AIR LEAKAGE TESTING FIGURE: AIR LEAKAGE TESTING IS REQUIRED FOR RESIDENTIAL PROJECTS |
| 136 | R402.5 MAXIMUM FENESTRATION U-FACTOR AND SHGC IMAGE: U-FACTOR AND SHGC REQUIREMENTS INDICATE HEAT TRANSMITTANCE OF FENESTRATION |
| 137 | R403 SYSTEMS |
| 138 | R403.3.1-R403.3.3.1 DUCT LOCATION AND INSULATION IMAGE: DUCT LOCATION DETERMINES INSULATION REQUIREMENTS |
| 141 | R403.3.5 DUCT TESTING FIGURE: DUCTS INSIDE CONDITIONED SPACE MUST NOW BE TESTED |
| 143 | R403.6.3 MECHANICAL VENTILATION SYSTEM TESTING FIGURE: MECHANICAL VENTILATION SYSTEM TESTING IS REQUIRED |
| 145 | R404 ELECTRICAL POWER AND LIGHTING SYSTEMS IMAGE: THE 2021 IECC NOW REGULATES BOTH INTERIOR AND EXTERIOR LIGHTING |
| 146 | R404.1.1 EXTERIOR LIGHTING IMAGE: EXTERIOR RESIDENTIAL LIGHTING MUST MEET COMMERCIAL REQUIREMENTS WHERE APPLICABLE |
| 147 | R404.2 INTERIOR LIGHTING CONTROLS IMAGE: INTERIOR LIGHTING IS CONTROLLED |
| 148 | R404.3 EXTERIOR LIGHTING CONTROLS IMAGE: EXTERIOR LIGHTING CONTROLS ARE REQUIRED |
| 149 | R405 TOTAL BUILDING PERFORMANCE |
| 150 | R405.2 PERFORMANCE-BASED COMPLIANCE |
| 151 | TABLE R405.2 REQUIREMENTS FOR TOTAL BUILDING PERFORMANCE |
| 153 | R405.3.2 COMPLIANCE REPORT IMAGE: PERFORMANCE PATH CERTIFICATE REQUIREMENTS ARE EXPANDED |
| 156 | R406 ENERGY RATING INDEX COMPLIANCE ALTERNATIVE |
| 157 | R406.2 ERI COMPLIANCE TABLE R406.2 REQUIREMENTS FOR ENERGY RATING INDEX |
| 159 | R406.3 BUILDING THERMAL ENVELOPE EQUATION 4-1 TABLE R406.5 MAXIMUM ENERGY RATING INDEX |
| 160 | R406.7.3 RENEWABLE ENERGY CERTIFICATE DOCUMENTATION IMAGE: RECS REPRESENT THE ENVIRONMENTAL ATTRIBUTES OF RENEWABLE ENERGY SYSTEMS |
| 161 | R407 TROPICAL CLIMATE REGION IMAGE: DWELLINGS IN THE TROPICAL ZONE MAY COMPLY WITH THE TROPICAL CLIMATE REGION OPTION |
| 163 | R408 ADDITIONAL EFFICIENCY PACKAGE OPTIONS IMAGE: MORE EFFICIENT HVACX EQUIPMENT IS ONE ADDITIONAL EFFICIENCY PACKAGE OPTION |
| 166 | PART 8: RESIDENTIAL ENERGY PROVISIONS: RESIDENTIAL APPENDICES |
| 167 | APPENDIX RA BOARD OF APPEALS-RESIDENTIAL IMAGE: ANY PERSON MAY APPEAL A DECISION OF THE CODE OFFICIAL |
| 171 | RB103.5 SHADING IMAGE: ROOF WITH INSTALLED SOLAR PANELS MEETING THE NEW SHADING REQUIREMENTS |
| 173 | APPENDIX RC ZERO ENERGY RESIDENTIAL BUILDING PROVISIONS IMAGE: ON-SITE SOLAR FOR NET ZERO ENERGY CONSUMPTION |
| 174 | TABLE RC102.2 MAXIMUM ENERGY RATING INDEX |
| 176 | TELEWORK WITH ICC DIGITAL CODES PREMIUM |
| 177 | PROCTORED REMOTE ONLINE TESTING OPTION (PRONTO™) |
