Performance approach for newly constructed low-rise residences (A4.203)

Grounded in the retrieved California Residential Code — click a citation to read the verbatim passage:

• CRC § 201.1 High relevance — show source text

  SECTION A4.201—GENERAL

  A4.201.1 Scope. For the purposes of mandatory energy efficiency standards in the California Building Standards Code (Title 24), the California Energy Commission will continue to adopt mandatory standards in the California Energy Code (Title 24, Part 6). It is the intent of these voluntary provisions to encourage local jurisdictions through codification to achieve exemplary performance in the area of building energy efficiency. Local jurisdictions adopting these voluntary provisions as mandatory local energy efficiency standards shall submit the required application and receive the required approval of the California Energy Commission in compliance with Title 24, Part 1, Section 10-106 prior to enforcement. Once the required filing has been verified and finding has been made by the Energy Commission, local jurisdictions shall file an ordinance expressly marking the local modification along with findings and receive the required acceptance from the California Building Standards Commission in compliance with Section 101.7 of this code, prior to enforcement. (Title 24, Part 1, Section 10-106 is available at https://www.energy.ca.gov/programs-and-topics/programs/build- ing-energy-efficiency-standards/2025-building-energy-efficiency

  SECTION A4.202—DEFINITIONS

  A4.202.1 Definitions. The following terms are defined in Chapter 2.

  ENERGY BUDGET.

  LONG-TERM SYSTEM COST (LSC).

  RECOVERED ENERGY, ON-SITE.

  SOLAR POOL HEATING SYSTEM.

  SECTION A4.203—PERFORMANCE APPROACH FOR NEWLY CONSTRUCTED BUILDINGS

  A4.203.1 Energy efficiency. Newly constructed low-rise residential buildings shall comply with Sections A4.203.1.1 through A4.203.1.4.

  A4.203.1.1 Long-term system cost (LSC). LSC rating for the building’s Proposed Design shall be computed by Compliance Software certified by the Energy Commission as specified in Title 24, Part 6, Section 100.1 and 150.1(b), and shall reduce the LSC required in the Compliance Software for minimum performance-based compliance with the California Energy Code by the compliance margin specified in Table A4.203.1.1. The rating shall be included in the Certificate of Compliance documentation.

  TABLE A4.203.1.1—RECOMMENDED LSC MARGINS BY CLIMATE ZONES	Col2
  CALIFORNIA ENERGY CODE CLIMATE ZONE	TOTAL LSC COMPLIANCE MARGIN
  1	2.70
  2	1.62
  3	1.10
  4	1.11
  5	1.01
  6	0.24
  7	0.24
  8	0.21
  9	0.20
  10	0.18
  11	1.11
  12	1.05
  13	0.96
  14	1.21
  15	0.59
  16	1.68
  Note: Community shared options complying with Title 24, Part 1, Section 10-115 may be used to achieve LSC targets.	Note: Community shared options complying with Title 24, Part 1, Section 10-115 may be used to achieve LSC targets.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-9

• CRC § 108.1 High relevance — show source text

  108.1** Items in this section are necessary to address innovative
  concepts or local environmental conditions.||||||| |Item 1|
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  | |Item 3||||||| |ENERGY EFFICIENCY||||||| |General||||||| |4.201.1 Building meets or exceeds the requirements of the_California_
  _Building Energy Efficiency Standards_3.||2|2|||| |Performance Approach for Newly
  Constructed Buildings||||||| |**A4.203.1.1 Hourly Source Energy Rating (EDR1).**EDR1 ratings for
  building design shall be computed by Energy Compliant software and
  shall reduce the EDR1 required by the software by the compliance
  margins specified in Table A4.203.1.1.||2|2|||| |**A4.203.1.2 Prerequisite options.In addition, a minimum of two of
  the efficiency measures specified in Sections A4.203.1.2.1 through
  A4.203.1.2.8 will be required to be met.
  · Roof Deck Insulation or Ducts in Conditioned Space.
  · High-performance Walls.
  · Compact Hot Water Distribution System.
  · Drain Water Heat Recovery.
  · High Performance Vertical Fenestration.
  · Heat Pump Water Heater Demand Management.
  · Battery Storage System Controls.
  · **Heat Pump Space and Water Heating.||2|2|||| |**A4.203.1.3 Consultation with local electric service provider.**Local
  jurisdictions considering adoption of reduced EDR targets based on
  using solar photovoltaic (PV) systems larger than required by the
  California Energy Code shall consult with the local electric service
  provider to ensure that that PV system sizing required to comply with
  the EDR targets will be acceptable to the local electric service
  provider.||2|2||||

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-25

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  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  SECTION A4.602—RESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST—continued

• CRC § 3.1. High relevance — show source text

  3. From Division A4.3, Water Efficiency and Conservation. 3.1. Comply with at least two elective measures selected from Division A4.3.
  4. From Division A4.4, Material Conservation and Resource Efficiency. 4.1. Comply with the 20 percent cement reduction requirements in Section A4.403.2. 4.2. Comply with the 10 percent recycled content requirements in Section A4.405.3.1. 4.3. Comply with the 65 percent reduction in construction waste in Section A4.408.1. 4.4. Comply with at least two elective measures selected from Division A4.4.
  5. From Division A4.5, Environmental Quality. 5.1. Comply with the 90 percent resilient flooring systems requirements in Section A4.504.2. 5.2. Comply with the thermal insulation requirements for Tier 1 in Section A4.504.3. 5.3. Comply with at least one elective measure selected from Division A4.5.

  Note: The Residential Occupancies Application Checklist contained in Section A4.602 may be used to show which elective measures are selected.

  A4.601.5 Tier 2. To achieve Tier 2 status a project must comply with the following.

  Note: The measures necessary to achieve Tier 2 status are very stringent. Cities, counties, and cities and counties considering adoption of Tier 2 as mandatory should carefully consider the stringency of each measure and ensure that the measures are achievable in their location.

  A4.601.5.1 Mandatory measures for Tier 2. The project shall meet or exceed all of the mandatory measures in Chapter 4, Divisions 4.1 through 4.5 and Chapter 7 as applicable.

  A4.601.5.2 Prerequisite and elective measures for Tier 2. In addition to the mandatory measures, compliance with the following prerequisite and elective measures from Appendix A4 is also required to achieve Tier 2 status.

  1. From Division A4.1, Planning and Design.

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  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  1.1. Comply with the topsoil protection requirements for Tier 1 and Tier 2 in Section A4.106.2.3. 1.2. Comply with the 30 percent permeable paving requirements in Section A4.106.4. 1.3. Comply with the cool roof requirements in Section A4.106.5. 1.4. Comply with the Tier 2 electric vehicle (EV) charging requirements in Section A4.106.8. 1.5. Comply with at least four elective measures selected from Division A4.1. 2. From Division A4.2, Energy Efficiency. 2.1. For newly constructed low-rise residential buildings, comply with the energy efficiency requirements in Sections A4.203.1, A4.203.1.1, Table A4.203.1.1, A4.203.1.2 and A4.203.1.3.

  3. From Division A4.3, Water Efficiency and Conservation. 3.1. Comply with at least three elective measures selected from Division A4.3.
  4. From Division A4.4, Material Conservation and Resource Efficiency. 4.1.
• CRC § 601.5.2 High relevance — show source text

  A4.601.5.2 Prerequisite and elective measures for Tier 2. In addition to the mandatory measures, compliance with the following prerequisite and elective measures from Appendix A4 is also required to achieve Tier 2 status.

  1. From Division A4.1, Planning and Design.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-21

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  APPENDIX A4 — RESIDENTIAL VOLUNTARY MEASURES

  1.1. Comply with the topsoil protection requirements for Tier 1 and Tier 2 in Section A4.106.2.3. 1.2. Comply with the 30 percent permeable paving requirements in Section A4.106.4. 1.3. Comply with the cool roof requirements in Section A4.106.5. 1.4. Comply with the Tier 2 electric vehicle (EV) charging requirements in Section A4.106.8. 1.5. Comply with at least four elective measures selected from Division A4.1. 2. From Division A4.2, Energy Efficiency. 2.1. For newly constructed low-rise residential buildings, comply with the energy efficiency requirements in Sections A4.203.1, A4.203.1.1, Table A4.203.1.1, A4.203.1.2 and A4.203.1.3.

  3. From Division A4.3, Water Efficiency and Conservation. 3.1. Comply with at least three elective measures selected from Division A4.3.
  4. From Division A4.4, Material Conservation and Resource Efficiency. 4.1. Comply with the 25 percent cement reduction requirements in Section A4.403.2. 4.2. Comply with the 15 percent recycled content requirements in Section A4.405.3.1. 4.3. Comply with the 75 percent reduction in construction waste in Section A4.408.1. 4.4. Comply with at least four elective measures selected from Division A4.4.
  5. From Division A4.5, Environmental Quality. 5.1. Comply with the 100 percent resilient flooring systems requirements in Section A4.504.2. 5.2. Comply with the thermal insulation requirements for Tier 1 and Tier 2 in Section A4.504.3. 5.3. Comply with at least one elective measure selected from Division A4.5.

  Note: The Residential Occupancies Application Checklist contained in Section A4.602 may be used to show which elective measures are selected.

  APPENDIX A4-22 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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  DIVISION A4.6 – TIER 1 AND TIER 2

  SECTION A4.602 — RESIDENTIAL OCCUPANCIES APPLICATION CHECKLIST

• CRC § 106.8 High relevance — show source text

  New multifamily dwellings and hotels and motels.**
  1. EV Ready Parking Spaces with Receptacles.
  a. Hotels and motels. Sixty (60) percent of the total number of
  parking spaces shall be equipped with low power Level 2 EV
  charging receptacles.
  **b. Raceway Capacity Requirements.**To allow for future
  upgrades to the electrical conductors serving low power Level 2
  EV charging receptacles, the listed raceway serving such recep-
  tacles shall be sized to allow the installation of a dedicated 208/
  240-volt 40-ampere branch circuit. Where no raceway is used,
  the conductors shall be sized to accommodate a 208/240-volt
  40-ampere receptacle.
  Exception:
  Hotels and motels may substitute Level 2 EV chargers for some or
  all of the required EV charging receptacles.
  2. EV Ready Parking Spaces with EV Chargers.
  **a. Hotels and motels.**Forty (40) percent of the total number of
  parking spaces shall be equipped with low power Level 2 EV
  charging receptacles.
  b. Multifamily Parking Facilities with Unassigned or Common
  **Use Parking.**In addition to the low power Level 2 EV charging
  receptacle requirements of Section A4.106.8 (Tier 1, subsection
  1), forty (40) percent of the total number of parking spaces shall
  be equipped with Level 2 EV chargers and shall be made avail-
  able for use by all residents or guests.|||2|||| |Innovative Concepts and Local
  Environmental Conditions||||||| |A4.108.1 Items in this section are necessary to address innovative
  concepts or local environmental conditions.||||||| |Item 1|
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  | |Item 3||||||| |ENERGY EFFICIENCY||||||| |General||||||| |4.201.1 Building meets or exceeds the requirements of the_California_
  _Building Energy Efficiency Standards_3.||2|2|||| |Performance Approach for Newly
  Constructed Buildings||||||| |**A4.203.1.1 Hourly Source Energy Rating (EDR1).**EDR1 ratings for
  building design shall be computed by Energy Compliant software and
  shall reduce the EDR1 required by the software by the compliance
  margins specified in Table A4.203.1.1.||2|2|||| |**A4.203.1.2 Prerequisite options.

• CRC § 120.0 High relevance — show source text

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  ALL OCCUPANCIES—GENERAL PROVISIONS

  ii. Compliance approaches. In order to comply with Part 6, newly constructed nonresidential buildings and hotels/motels that are mechanically heated or mechanically cooled must meet the requirements of: a. Mandatory measures: The applicable provisions of Sections 120.0 through 130.5; and

  b. Either:

  (i) Performance approach: Section 140.1; or (ii) Prescriptive approach: Sections 140.2 through 140.10. C. Unconditioned nonresidential buildings and process space. Sections 110.9, 110.10, 120.6, 130.0 through 130.5, 140.3(c), 140.6, 140.7 and 140.8 apply to all newly constructed unconditioned buildings and for process spaces within the scope of Section 100.0(a). D. Single-family buildings. i. Sections applicable. Sections 150.0 through 150.1 apply to newly constructed single-family buildings. ii. Compliance approaches. In order to comply with Part 6, newly constructed single-family buildings must meet the requirements of: a. Mandatory measures: The applicable provisions of Sections 110.0 through 110.10 and 150.0; and

  b. Either:

  (i) Performance approach: Sections 150.1(a) and (b); or (ii) Prescriptive approach: Sections 150.1(a) and (c). Exception to Section 100.0(e)2Diib: Seasonally occupied agricultural housing limited by state or federal agency contract to occupancy not more than 180 days in any calendar year. E. Multifamily Buildings . i. Sections applicable. Sections 160.0 through 170.2 apply to newly constructed multifamily buildings. ii. Compliance approaches. In order to comply with Part 6, newly constructed multifamily buildings must meet the requirements of: a. Mandatory measures: The applicable provisions of Sections 110.0 through 110.10, and 160.0; and

  b. Either:

  (i) Performance approach: Section 170.1; or (ii) Prescriptive approach: Section 170.2(a) through (f).

  F. Covered processes.

  i. Sections applicable. Sections 110.2, 120.3, 120.6, 140.9, and 141.1 apply to covered processes. ii. Compliance approaches. In order to comply with Part 6, covered processes must meet the requirements of: a. The applicable mandatory measures in Sections 110.2, 120.3 and 120.6; and

  b. Either:

  (i) The performance approach requirements of Section 140.1; or (ii) The prescriptive approach requirements of Section 140.9. 3. New construction in existing buildings (additions, alterations and repairs). A. Nonresidential and hotel/motel buildings. Section 141.0 applies to new construction in existing nonresidential, high-rise residential and hotel/motel buildings. New construction in existing buildings includes additions, alterations and repairs. Section 141.0 specifies requirements that uniquely apply to additions, alterations or repairs to existing buildings, and specify which requirements in other sections also apply. For alterations that change the occupancy classification of the building, the requirements specified in Section 141.0 apply to the occupancy after the alterations. B. **Single-family buildings.

• CRC § 201.1 High relevance — show source text

  APPENDIX A5-12 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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  A5 NONRESIDENTIAL VOLUNTARY MEASURES

  DIVISION A5.2 – ENERGY EFFICIENCY

  SECTION A5.201—GENERAL

  A5.201.1 Scope. For the purposes of mandatory energy efficiency standards in this code, the California Energy Commission will continue to adopt mandatory standards. It is the intent of these voluntary provisions to encourage local jurisdictions through codification to achieve exemplary performance in the area of building energy efficiency. Local jurisdictions adopting these voluntary provisions as mandatory local energy efficiency standards shall submit the required application and receive the required findings of the California Energy Commission in compliance with Title 24, Part 1, Section 10-106, prior to enforcement. Once the required filing has been verified and finding has been made by the Energy Commission, local jurisdictions shall file an ordinance expressly marking the local modifications along with findings and receive the required acceptance from the California Building Standards Commission in compliance with Section 101.7 of this code, prior to enforcement (Title 24, Part 1, Section 10-106 is available at https://www.energy.ca.gov/programs-and-topics/programs/building-energy-efficiency-standards/2025-building-energy-efficiency

  SECTION A5.202—DEFINITIONS

  A5.202.1 Definitions. The following terms are defined in Chapter 2.

  ENERGY BUDGET.

  GEOTHERMAL.

  LONG-TERM SYSTEM COST (LSC).

  PROCESS.

  RECOVERED ENERGY, ON-SITE.

  SOLAR ACCESS.

  SOLAR POOL HEATING SYSTEM.

  SECTION A5.203—PERFORMANCE APPROACH

  A5.203.1 Energy efficiency. Nonresidential, high-rise residential and hotel/motel buildings that include lighting and/or mechanical systems shall comply with Sections A5.203.1.1 and A5.203.1.2. Newly constructed buildings and additions are included in the scope of these sections. Buildings permitted without lighting or mechanical systems shall comply with Section A5.203.1.1 but are not required to comply with Section A5.203.1.2.

  A5.203.1.1 Tier 1 and Tier 2 prerequisites. To comply with Tier 1, ONE of the following efficiency measures is required for all applicable components of the building project. To comply with Tier 2, TWO of the following efficiency measures are required.

  A5.203.1.1.1 Outdoor lighting. Outdoor lighting requirements are described below.

  A5.203.1.1.1.1 Newly installed outdoor lighting power shall be no greater than 90 percent of the Allowed Outdoor Lighting Power, and general hardscape lighting within the scope of Title 24, Part 6, Section 140.7(b)1 shall have a color temperature no higher than 3000K. The Allowed Outdoor Lighting Power calculation is specified in Title 24, Part 6, Section 140.7, Requirements for Outdoor Lighting.

  Exception to Section A5.203.1.1.1.1:

• CRC § 25218.5 High relevance — show source text

  Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5,
  25402.8 and 25943,Public Resources Code.|N.A. = Not Applicable
  1.
  Nonresidential and hotel/motel buildings that contain covered processes may conform to the applicable requirements of both occupancy types listed in this table.
  Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1,Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5,
  25402.8 and 25943,Public Resources Code.|N.A. = Not Applicable
  1.
  Nonresidential and hotel/motel buildings that contain covered processes may conform to the applicable requirements of both occupancy types listed in this table.
  Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1,Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5,
  25402.8 and 25943,Public Resources Code.|

  2. Newly constructed buildings. A. All newly constructed buildings. Sections 110.0 through 110.12 apply to all newly constructed buildings within the scope of Section 100.0(a). In addition, newly constructed buildings shall meet the requirements of Subsections B, C, D or E, as applicable. B. Nonresidential and hotel/motel buildings that are mechanically heated or mechanically cooled. i. Sections applicable. Sections 120.0 through 140.8 apply to newly constructed nonresidential buildings and hotels/motels that are mechanically heated or mechanically cooled.

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  ALL OCCUPANCIES—GENERAL PROVISIONS

  ii. Compliance approaches. In order to comply with Part 6, newly constructed nonresidential buildings and hotels/motels that are mechanically heated or mechanically cooled must meet the requirements of: a. Mandatory measures: The applicable provisions of Sections 120.0 through 130.5; and

  b. Either:

  (i) Performance approach: Section 140.1; or (ii) Prescriptive approach: Sections 140.2 through 140.10. C. Unconditioned nonresidential buildings and process space. Sections 110.9, 110.10, 120.6, 130.0 through 130.5, 140.3(c), 140.6, 140.7 and 140.8 apply to all newly constructed unconditioned buildings and for process spaces within the scope of Section 100.0(a). D. Single-family buildings. i. Sections applicable. Sections 150.0 through 150.1 apply to newly constructed single-family buildings. ii. Compliance approaches. In order to comply with Part 6, newly constructed single-family buildings must meet the requirements of: a. Mandatory measures: The applicable provisions of Sections 110.0 through 110.10 and 150.0; and

  b. Either:

• CRC § 140.0 Medium relevance — show source text

  Note to Section 140.0(c): The Commission periodically updates, publishes and makes available to interested persons and local enforcement agencies precise descriptions of the climate zones, which is available by zip code boundaries depicted in the Reference Joint Appendices along with a list of the communities in each zone.

  Note to Section 140.0: The requirements of Sections 140.1 through 140.10 apply to newly constructed buildings. Section 141.0 specifies which requirements of Sections 140.1 through 140.10 also apply to additions or alterations to existing buildings.

  Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code.

  SECTION 140.1—PERFORMANCE APPROACH: ENERGY BUDGETS

  A building complies with the performance standards if the energy consumption calculated for the proposed design building is no greater than the energy budget calculated for the standard design building using Commission-certified compliance software as specified by Sections 10-109(c) and 10-116.

  (a) Energy budget. The energy budget is expressed in terms of long-term system cost (LSC) and source energy.

  1. Long-term system cost (LSC). The LSC energy budget is determined by applying the mandatory and prescriptive requirements of the standard design to the proposed design building and has two components, the Efficiency LSC and the Total LSC.

  A. The Efficiency LSC energy is the sum of the LSC energy for space-conditioning, water heating, mechanical ventilation, and lighting. B. The Total LSC energy is the sum of the Efficiency LSC energy and LSC energy from the photovoltaic system, battery energy storage systems (BESS) and demand flexibility. 2. Source energy . The source energy budget is determined by applying the mandatory and prescriptive requirements of the standard design to the proposed design building.

  Exception to Section 140.1(a). A community shared solar electric generation system, or other renewable electric generation system, and/or community shared BESS, that provides dedicated power, utility energy reduction credits or payments for energy bill reductions to the permitted building and is approved by the Energy Commission as specified in Title 24, Part 1, Section 10-115, may offset part or all of the solar electric generation system or BESS LSC energy required to comply with the standards, as calculated according to methods established by the Commission in the Nonresidential ACM Reference Manual.

  Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code.

  SECTION 140.2—PRESCRIPTIVE APPROACH

  To comply using the prescriptive approach a building shall be designed with and shall have constructed and installed systems and components meeting the applicable requirements of Sections 140.3 through 140.10.

• CRC § 0.46 Medium relevance — show source text

  26|NR| |Curtain Wall/ Storefront7 -
  Minimum VT, Common-Use
  Area|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46|0.46| |NAFS 2017 Performance Class
  AW5 - Maximum U-Factor|0.38|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.40|0.38| |NAFS 2017 Performance Class
  AW5 - Maximum RSHGC|NR|0.24|NR|0.24|NR|0.24|0.24|0.24|0.24|0.24|0.24|0.24|0.24|0.24|0.24|NR| |NAFS 2017 Performance Class
  AW5 - Minimum VT, Common-
  Use Areas|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37|0.37| |All Other Fenestration -
  Maximum U-Factor|0.28|0.30|0.28|0.28|0.28|0.34|0.34|0.30|0.30|0.30|0.28|0.30|0.28|0.28|0.28|0.28| |All Other Fenestration -
  Maximum RSHGC|NR|0.23|NR|0.23|NR|0.23|0.23|0.23|0.23|0.23|0.23|0.23|0.23|0.23|0.23|NR| |Maximum Window to Floor
  Ratio|20%|20%|20%|20%|20%|20%|20%|20%|20%|20%|20%|20%|20%|20%|20%|20%| |Maximum Window to Wall
  Ratio|40%|40%|40%|40%|40%|40%|40%|40%|40%|40%|40%|40%|40%|40%|40%|40%| |Maximum Skylight Roof Ratio|5%|5%|5%|5%|5%|5%|5%|5%|5%|5%|5%|5%|5%|5%|5%|5%| |1. Install the specified_R_-value with an airspace present between the roofing and the roof deck. Such as standard installation of concrete or clay tile.
  2._ R_-values shown for below roof deck insulation are for wood-frame construction with insulation installed between the framing members. Alternatives including insulation
  above rafters or above roof deck shall comply with the performance standards.
  3. Assembly_U_-factors for exterior framed walls can be met with cavity insulation alone or with continuous insulation alone, or with both cavity and continuous insulation that
  results in an assembly_U_-factor equal to or less than the_U_-factor shown.

• CRC § 106.5.1 Medium relevance — show source text

  SRI values used to comply with this section shall be calculated using the Solar Reflectance Index (SRI) Calculation Worksheet (SRI-WS) developed by the California Energy Commission or in compliance with ASTM E1980-01 as specified in the 2022 California Energy Code. Solar reflectance values used in the SRI-WS shall be based on the aged reflectance value of the roofing product or the equation in Section A4.106.5.1 if the CRRC certified aged solar reflectance are not available. Certified thermal emittance used in the SRI-WS may be either the initial value or the aged value listed by the CRRC.

  Solar reflectance and thermal emittance may also be certified by other supervisory entities approved by the Commission pursuant to Title 24, Part 1, California Administrative Code.

  Note: The Solar Reflectance Index Calculation Worksheet (SRI-WS) is available by contacting the Energy Standards Hotline at 1-800-772-3300, website at www.energy.ca.gov or by email at Title24@energy.ca.gov.

  TABLE A4.106.5.1(1)—TIER 1 – LOW-RISE RESIDENTIAL	Col2	Col3	Col4	Col5
  ROOF SLOPE	CLIMATE ZONE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	SRI
  ≤ 2:12	13 & 15	0.63	0.75	75
  > 2:12	10 – 15	0.20	0.75	16

  TABLE A4.106.5.1(2)—TIER 2 – LOW-RISE RESIDENTIAL	Col2	Col3	Col4	Col5
  ROOF SLOPE	CLIMATE ZONE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	SRI
  ≤ 2:12	2, 4, 6 – 15	0.65	0.85	78
  > 2:12	2, 4, 6 – 15	0.23	0.85	20

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A4-5

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  TABLE A4.106.5.1(3)—TIER 1 – HIGH-RISE RESIDENTIAL BUILDINGS, HOTELS AND MOTELS	Col2	Col3	Col4	Col5
  ROOF SLOPE	CLIMATE ZONE	MINIMUM 3-YEAR AGED SOLAR REFLECTANCE	THERMAL EMITTANCE	SRI
  ≤ 2:12	9, 10, 11, 13, 14, 15	0.55	0.75	64
  > 2:12	2 – 15	0.20	0.75	16

• CRC § 3103F.4.2.5 Medium relevance — show source text

  0_|1.8|1.6|1.5| |E|3.5|3.2|2.8|2.4|2.4| |F|*|*|*|*|*| |Note:Linear interpolation can he used to estimate values of Fv for intermediate values of S1.
  * Site-specific dynamic site response analysis shall be performed.|Note:Linear interpolation can he used to estimate values of Fv for intermediate values of S1.
  * Site-specific dynamic site response analysis shall be performed.|Note:Linear interpolation can he used to estimate values of Fv for intermediate values of S1.
  * Site-specific dynamic site response analysis shall be performed.|Note:Linear interpolation can he used to estimate values of Fv for intermediate values of S1.
  * Site-specific dynamic site response analysis shall be performed.|Note:Linear interpolation can he used to estimate values of Fv for intermediate values of S1.
  * Site-specific dynamic site response analysis shall be performed.|Note:Linear interpolation can he used to estimate values of Fv for intermediate values of S1.
  * Site-specific dynamic site response analysis shall be performed.|

  3103F.4.2.5 Site-specific evaluation of amplification effects. As an alternative to the procedure presented in Section 3103F.4.2.4, a site-specific response analysis may be performed. For Site Class F a site-specific response analysis is required. The analysis shall be either an equivalent linear or nonlinear analysis. Appropriate acceleration time histories as discussed in Section 3103F.4.2.10 shall be used.

  In general, an equivalent linear analysis using, for example, SHAKE91 [3.3] is acceptable when the strength and stiffness of soils are unlikely to change significantly during the seismic shaking and the level of shaking is not large. A nonlinear analysis should be used when the strength and/or stiffness of soils could significantly change during the seismic shaking or significant nonlinearity of soils is expected because of high seismic shaking levels.

  2025 CALIFORNIA BUILDING CODE 31F-21

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  MARINE OIL TERMINALS

  The choice of the method used in site response analysis shall be justified considering the expected stress-strain behavior of soils under the shaking level considered in the analysis.

  Site-specific site response analysis may be performed using one-dimensional analysis. However, to the extent that MOTs often involve slopes or earth retaining structures, the one-dimensional analysis should be used judiciously. When one-dimensional analysis cannot be justified or is not adequate, two-dimensional equivalent linear or nonlinear response analysis shall be performed. Site- specific response analysis results shall be compared to those based on the simplified method of Section 3103F.4.2.4 for reasonableness.

  The peak ground accelerations obtained from this site-specific evaluation are DPGAs and the spectral accelerations are DSAs as long as the near-fault directivity effects addressed in Section 3103F.4.2.6 are appropriately incorporated into the time histories (Section 3103F.4.2.10).