Section AR104
California Residential Code (Title 24, Part 2.5) · 2022 edition · updated 2026-09-12 · California
Italicized text is a California amendment to the model code, as printed in the official publication.
AR104.1 Thermal characteristics.¶
Walls with light strawclay infill of densities of greater than or equal to 20 pounds per cubic foot (480.6 kg/m 3 ) shall be classified as mass walls in accordance with Section N1102.2.5 (R402.2.5) and shall
meet the R -value requirements for mass walls in Table N1102.1.3 (R402.1.2). Walls with light straw-clay infill of densities less than 20 pounds per cubic foot (480.6 kg/m 3 ) shall meet the R -value requirements for wood frame walls in Table N1102.1.3 (R402.1.2).
AR104.2 Thermal resistance.¶
Light straw-clay shall be deemed to have a thermal resistance as specified in Table AR103.2.3.
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Ask AI about this code▸Contents — California Residential Code (Title 24, Part 2.5)
- Chapter 2 — DEFINITIONS AND ABBREVIATIONS
- Appendix AF — RADON CONTROL
- Appendix AI — PRIVATE SEWAGE
- Appendix AJ — EXISTING
- Appendix AK — SOUND
- Appendix AO — AUTOMATIC
- Appendix AR — LIGHT STRAW-CLAY
- Appendix AS — STRAWBALE
- Appendix AU — COB CONSTRUCTION
- Appendix AV — BOARD
- Appendix AW — 3D-PRINTED BUILDING
- Chapter 1 — SCOPE AND APPLICATION
- Chapter 3 — BUILDING PLANNING
- Chapter 4 — FOUNDATIONS
- Chapter 5 — FLOORS
- Chapter 6 — WALL CONSTRUCTION
- Chapter 7 — WALL COVERING
- Chapter 8 — ROOF-CEILING CONSTRUCTION
- Chapter 9 — ROOF ASSEMBLIES
- Chapter 10 — CHIMNEYS AND FIREPLACES
- Chapter 44 — REFERENCED STANDARDS
- Appendix AH — PATIO COVERS
- Appendix AL — PERMIT FEES
- Appendix AT — SOLAR-READY PROVISIONS—DETACHED ONE- AND
- Appendix AX — SWIMMING POOL SAFETY ACT
- Appendix AY — AREAS PROTECTED BY THE FACILITIES
- Appendix AZ — EMERGENCY HOUSING