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North Carolina Energy Conservation Code, 1st Printing, 2012
- 2012 NORTH CAROLINA STATE BUILDING CODE: ENERGY CONSERVATION CODE (2009 IECC® WITH NORTH CAROLINA AMENDMENTS)
- COPYRIGHT
- NORTH CAROLINA STATE BUILDING CODE COUNCIL JUNE 1, 2011
- NORTH CAROLINA DEPARTMENT OF INSURANCE [Go to Page]
- COMMITTEES OF THE COUNCIL
- PREFACE
- EFFECTIVE USE OF THE NORTH CAROLINA ENERGY CONSERVATION CODE
- ORDINANCE
- TABLE OF CONTENTS
- CHAPTER 1 ADMINISTRATION [Go to Page]
- PART 1—SCOPE AND APPLICATION [Go to Page]
- SECTION 101 SCOPE AND GENERAL REQUIREMENTS
- SECTION 102 ALTERNATE MATERIALS—METHOD OF CONSTRUCTION, DESIGN OR INSULATING SYSTEMS
- PART 2—ADMINISTRATION AND ENFORCEMENT [Go to Page]
- SECTION 103 CONSTRUCTION DOCUMENTS
- SECTION 104 INSPECTIONS
- SECTION 105 VALIDITY
- SECTION 106 REFERENCED STANDARDS
- SECTION 107 FEES
- SECTION 108 STOP WORK ORDER
- SECTION 109 BOARD OF APPEALS
- CHAPTER 2 DEFINITIONS [Go to Page]
- SECTION 201 GENERAL
- SECTION 202 GENERAL DEFINITIONS
- CHAPTER 3 GENERAL REQUIREMENTS [Go to Page]
- SECTION 301 CLIMATE ZONES [Go to Page]
- TABLE 301.1 NORTH CAROLINA CLIMATE ZONES, MOISTURE REGIMES, AND WARM-HUMID DESIGNATIONS BY COUNTY
- FIGURE 301.1 NORTH CAROLINA CLIMATE ZONES
- FIGURE 301.2 CLIMATE ZONES
- TABLE 301.3(1) INTERNATIONAL CLIMATE ZONE DEFINITIONS
- TABLE 301.3(2) INTERNATIONAL CLIMATE ZONE DEFINITIONS
- SECTION 302 DESIGN CONDITIONS
- SECTION 303 MATERIALS, SYSTEMS AND EQUIPMENT [Go to Page]
- TABLE 303.1.3(1) DEFAULT GLAZED FENESTRATION U-FACTOR
- TABLE 303.1.3(2) DEFAULT DOOR U-FACTORS
- TABLE 303.1.3(3) DEFAULT GLAZED FENESTRATION SHGC
- CHAPTER 4 RESIDENTIAL ENERGY EFFICIENCY [Go to Page]
- SECTION 401 GENERAL
- SECTION 402 BUILDING THERMAL ENVELOPE [Go to Page]
- TABLE 402.1.1 INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENTa
- TABLE 402.1.3 EQUIVALENT U-FACTORSa
- TABLE 402.2.5 STEEL-FRAME CEILING, WALL AND FLOOR INSULATION (R-VALUE)
- TABLE 402.2.9 WALL INSULATION ALLOWANCES FOR TERMITE TREATMENT AND INSULATION GAPS
- TABLE 402.4.2 AIR BARRIER AND INSULATION INSPECTION COMPONENT CRITERIA
- SECTION 403 SYSTEMS
- SECTION 404 ELECTRICAL POWER AND LIGHTING SYSTEMS
- SECTION 405 SIMULATED PERFORMANCE ALTERNATIVE (Performance) [Go to Page]
- TABLE 405.5.2(1) SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS [Go to Page]
- TABLE 405.5.2(1)—continued SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS [Go to Page]
- TABLE 405.5.2(1)—continued
- TABLE 405.5.2(2) DEFAULT DISTRIBUTION SYSTEM EFFICIENCIES FOR PROPOSED DESIGNSa
- CHAPTER 5 COMMERCIAL ENERGY EFFICIENCY [Go to Page]
- SECTION 501 GENERAL
- SECTION 502 BUILDING ENVELOPE REQUIREMENTS [Go to Page]
- TABLE 502.1.2 BUILDING ENVELOPE REQUIREMENTS OPAQUE ELEMENT, MAXIMUM U-FACTORS
- TABLE 502.2(1) BUILDING ENVELOPE REQUIREMENTS - OPAQUE ASSEMBLIES
- TABLE 502.2(2) BUILDING ENVELOPE REQUIREMENTS–OPAQUE ASSEMBLIES
- EQUATION 5-1
- TABLE 502.3 BUILDING ENVELOPE REQUIREMENTS: FENESTRATION
- SECTION 503 BUILDING MECHANICAL SYSTEMS [Go to Page]
- TABLE 503.2.3(1) UNITARY AIR CONDITIONERS AND CONDENSING UNITS, ELECTRICALLY OPERATED, MINIMUM EFFICIENCY REQUIREMENTS
- TABLE 503.2.3(2) UNITARY AIR CONDITIONERS AND CONDENSING UNITS, ELECTRICALLY OPERATED, MINIMUM EFFICIENCY REQUIREMENTS
- TABLE 503.2.3(3) PACKAGED TERMINAL AIR CONDITIONERS AND PACKAGED TERMINAL HEAT PUMPS
- TABLE 503.2.3(4) WARM AIR FURNACES AND COMBINATION WARM AIR FURNACES/AIR-CONDITIONING UNITS, WARM AIR DUCT FURNACES AND UNIT HEATERS, MINIMUM EFFICIENCY REQUIREMENTS
- TABLE 503.2.3(5) BOILERS, GAS- AND OIL-FIRED, MINIMUM EFFICIENCY REQUIREMENTS
- TABLE 503.2.3(6) CONDENSING UNITS, ELECTRICALLY OPERATED, MINIMUM EFFICIENCY REQUIREMENTS
- TABLE 503.2.3(7) WATER CHILLING PACKAGES, EFFICIENCY REQUIREMENTSa
- EQUATION 5-2
- TABLE 503.2.8 MINIMUM PIPE INSULATION (thickness in inches)
- TABLE 503.2.10.1(1) FAN POWER LIMITATION
- TABLE 503.2.10.1(2) FAN POWER LIMITATION PRESSURE DROP ADJUSTMENT
- TABLE 503.3.1(1) ECONOMIZER REQUIREMENTS
- TABLE 503.3.1(2) EQUIPMENT EFFICIENCY PERFORMANCE EXCEPTION FOR ECONOMIZERS
- TABLE 503.4.7 MAXIMUM HOT GAS BYPASS CAPACITY
- SECTION 504 SERVICE WATER HEATING (Mandatory Requirements) [Go to Page]
- TABLE 504.2 MINIMUM PERFORMANCE OF WATER-HEATING EQUIPMENT
- SECTION 505 ELECTRICAL POWER AND LIGHTING SYSTEMS [Go to Page]
- TABLE 505.5.2 INTERIOR LIGHTING POWER ALLOWANCES [Go to Page]
- TABLE 505.5.2—continued INTERIOR LIGHTING POWER ALLOWANCES [Go to Page]
- TABLE 505.5.2—continued INTERIOR LIGHTING POWER ALLOWANCES
- TABLE 505.6.2(1) EXTERIOR LIGHTING ZONES
- TABLE 505.6.2(2) INDIVIDUAL LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS
- TABLE 506.2.1(1) UNITARY AIR CONDITIONERS AND CONDENSING UNITS, ELECTRICALLY OPERATED, EFFICIENCY REQUIREMENTS
- TABLE 506.2.1(2) UNITARY AND APPLIED HEAT PUMPS, ELECTRICALLY OPERATED, EFFICIENCY REQUIREMENTS
- TABLE 506.2.1(3) PACKAGED TERMINAL AIR CONDITIONERS AND PACKAGED TERMINALHEAT PUMPS
- TABLE 506.2.1(4) WARM AIR FURNACES AND COMBINATION WARM AIR FURNACES/AIR-CONDITIONING UNITS, WARM AIR DUCT FURNACES AND UNIT HEATERS, EFFICIENCY REQUIREMENTS
- TABLE 506.2.1(5) BOILER, EFFICIENCY REQUIREMENTS
- TABLE 506.2.1(5) CHILLERS - EFFICIENCY REQUIREMENTS
- TABLE 506.2.1(6) ABSORPTION CHILLERS - EFFICIENCY REQUIREMENTS
- SECTION 506 ADDITIONAL PRESCRIPTIVE COMPLIANCE REQUIREMENTS
- SECTION 507 TOTAL BUILDING PERFORMANCE [Go to Page]
- TABLE 507.5.1(1) SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS [Go to Page]
- TABLE 507.5.1(1)—continued SPECIFICATIONS FOR THE STANDARD REFERENCE AND PROPOSED DESIGNS
- TABLE 507.5.1(2) HVAC SYSTEMS MAP
- TABLE 507.5.1(3) SPECIFICATIONS FOR THE STANDARD REFERENCE DESIGN HVAC SYSTEM DESCRIPTIONS
- TABLE 507.5.1(4) NUMBER OF CHILLERS
- TABLE 507.5.1(5) WATER CHILLER TYPES
- CHAPTER 6 REFERENCED STANDARDS [Go to Page]
- AAMA
- AHRI
- AMCA
- ANSI
- ASHRAE
- ASME
- ASTM
- CSA
- DOE
- ICC
- IESNA
- NFRC
- SMACNA
- UL
- US—FTC
- WDMA
- APPENDIX 1 RESIDENTIAL REQUIREMENTS [Go to Page]
- APPENDIX 1.1 ENERGY EFFICIENCY CERTIFICATE [Go to Page]
- TABLE 401.9 ENERGY EFFICIENCY CERTIFICATE
- APPENDIX 1.2 INSULATION AND AIR SEALING DETAILS [Go to Page]
- FIGURE SECTION VIEW OF CEILING WITH ATTIC SPACE
- APPENDIX 1.2.2 [Go to Page]
- INSULATION ILLUSTRATIONS
- APPENDIX 1.2.3 [Go to Page]
- FIGURE SECTION VIEW OF BATH TUB ON EXTERIOR WALL
- FIGURE SECTION VIEW OF SHOWER ON EXTERIOR WALL
- FIGURE SECTION VIEW OF INTERIOR STAIRCASE ON EXTERIOR WALL (OPTION 1)
- FIGURE SECTION VIEW OF INTERIOR STAIRCASE ON EXTERIOR WALL (OPTION 2)
- FIGURE SECTION VIEW OF DIRECT VENT GAS FIREPLACE
- FIGURE SECTION VIEW OF WALL ADJOINING ATTIC SPACE
- FIGURE SECTION VIEW OF WALL ADJOINING ATTIC SPACE
- APPENDIX 1.2.4 [Go to Page]
- FIGURE ISOMETRIC VIEW OF DIMENSIONAL LUMBER FLOOR/CEILING SYSTEM ABOVE COMMON WALL BETWEEN UNCONDITIONED AND CONDITIONED SPACE
- FIGURE ISOMETRIC VIEW OF WOOD TRUSS FLOOR/CEILING SYSTEM ABOVE COMMON WALL BETWEEN UNCONDITIONED AND CONDITIONED SPACE
- FIGURE ISOMETRIC VIEW OF I-JOIST FLOOR/CEILING SYSTEM ABOVE COMMON WALL BETWEEN UNCONDITIONED AND CONDITIONED SPACE
- FIGURE SECTION VIEWS OF DUCT PENETRATING INTO ATTIC
- FIGURE SECTION VIEW OF SOFFIT OVER CABINET
- FIGURE SECTION VIEW OF FLOOR HVAC BOOT PENETRATION
- FIGURE SECTION VIEW OF CEILING HVAC BOOT PENETRATION
- APPENDIX 2 COMMERCIAL BUILDING REQUIREMENTS [Go to Page]
- APPENDIX 2.1: AIR SEALING DETAILS [Go to Page]
- FIGURE PLAN VIEW OF WINDOW IN WOOD FRAME WALL
- FIGURE SECTION VIEW OF CURTAIN WALL
- FIGURE PLAN VIEW OF HOLLOW METAL DOOR FRAME
- FIGURE SECTION VIEW OF WOOD FRAME WALL, FLOOR, AND FOUNDATION
- FIGURE SECTION VIEW OF METAL STUD WALL, FLOOR, AND FOUNDATION
- FIGURE SECTION VIEW (A) OF WALL AND ROOF
- FIGURE PLAN VIEW (B) OF WALL AND ROOF
- FIGURE SEAL EXTERIOR PENETRATIONS
- FIGURE PLAN VIEW OF WALL HVAC DUCT PENETRATING EXTERIOR WALL
- FIGURE SECTION VIEW OF WALL AND SEALING POINTS OF UTILITY PENETRATIONS
- FIGURE ELEVATION VIEW OF A 3 STORY COMMERCIAL BUILDING
- FIGURE SECTION VIEW OF SUSPENDED CEILING TILES AND EXTERIOR WALL
- APPENDIX 2.2: COMMERCIAL BUILDING OPAQUE ASSEMBLIES [Go to Page]
- FIGURE SECTION VIEW OF METAL FRAME ROOF: FILLED CAVITY FIBERGLASS INSULATION
- FIGURE SECTION OF METAL FRAME ROOF: LINER SYSTEM WITH MINIMUM R-3.5 THERMAL SPACER BLOCK
- FIGURE SECTION VIEW OF METAL FRAME WITH INSULATION BETWEEN FRAME AND EXTERIOR PANEL
- APPENDIX 3 SAMPLE WORKSHEETS FOR RESIDENTIAL AIR AND DUCT LEAKAGE TESTING [Go to Page]
- APPENDIX 3A AIR SEALING: VISUAL INSPECTION OPTION (SECTION 402.4.2.1) SAMPLE WORKSHEET [Go to Page]
- TABLE 402.4.2 AIR BARRIER INSPECTION
- APPENDIX 3B AIR SEALING: TESTING OPTION (SECTION 402.4.2.2) SAMPLE WORKSHEET
- APPENDIX 3C DUCT SEALING: DUCT AIR LEAKAGE TEST (SECTION 403.2.2) SAMPLE WORKSHEET
- APPENDIX 4 ADDITIONAL VOLUNTARY CRITERIA FOR INCREASING ENERGY EFFICIENCY (High Efficiency Residential Option) [Go to Page]
- TABLE 4A INSULATION AND FENESTRATION REQUIREMENTS BY COMPONENTa
- TABLE 4B EQUIVALENT U-FACTORSa
- TABLE 4C SAMPLE CONFIRMATION FORM FOR ADDITIONAL VOLUNTARY CRITERIA FOR INCREASING ENERGY EFFICIENCY (High Efficiency Residential Option)
- 4D: SAMPLE WORKSHEETS FOR RESIDENTIAL AIR AND DUCT LEAKAGE TESTING [Go to Page]
- 4D.1 AIR SEALING: VISUAL INSPECTION OPTION (SECTION 402.4.2.1) SAMPLE WORKSHEET FOR ALTERNATIVE RESIDENTIAL ENERGY CODE FOR HIGHER EFFICIENCY [Go to Page]
- TABLE 402.4.2 AIR BARRIER INSPECTION
- 4D.2 AIR SEALING: TESTING OPTION (SECTION 402.4.2.2) SAMPLE WORKSHEET FOR ALTERNATIVE RESIDENTIAL ENERGY CODE FOR HIGHER EFFICIENCY
- 4D.3 DUCT SEALING: DUCT AIR LEAKAGE TEST (SECTION 403.2.2) SAMPLE WORKSHEET FOR ALTERNATIVE RESIDENTIAL ENERGY CODE FOR HIGHER EFFICIENCY
- APPENDIX 5 STATEMENT OF COMPLIANCE - HVAC SYSTEM INSTALLATION
- INDEX
- IECC TOOLS
- HELPFUL LINKS [Go to Page]
- ICC WEBSITE
- ICC PRODUCT STORE
- IMMEDIATE DOWNLOADS 24/7 AT THE ECODES STORE
- ICC EVALUATION SERVICE - EVALUATION REPORTS OF PRODUCTS [Go to Page]