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Appendix AT — SOLAR-READY PROVISIONS—DETACHED ONE- AND

Section AU108

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.

AU108.1 Fire-resistance rating.

Cob walls are not fireresistance rated.

AU108.2 Clearance to fireplaces and chimneys.

Cob walls or other cob surfaces shall not require clearance to fireplaces and chimneys, except where clearance to noncombustibles is required by the manufacturer’s instructions.

FIGURE AU106.11.3 CURVED BRACED WALL PANEL

Copyright © 2022 by, or licensed to, International Code Council, Inc. (ALL RIGHTS RESERVED); licensed to California Building Standards Commission pursuant to License Agreement. No further reproductions is authorized. Any unauthorized reproduction or distribution is a violation of the federal copyright act and the license agreement, and subject to civil and criminal penalties thereunder.

APPENDIX AU—COB CONSTRUCTION (MONOLITHIC ADOBE)

TABLE AU106.12 ANCHORAGE OF BOND BEAMS FOR WIND UPLIFT

ANCHORS:

• 5 /8″ ALL THREAD AT 12″ O.C. a, b

• 2″ × 2″ × 1 /4″ WASHERS AND NUT AT END IN COB

• 4″ EMBEDMENT IN CONCRETE BOND BEAMS

• FULL PENETRATION THROUGH WOOD BOND BEAMS WITH 2″ × 2″ × 1/ ANCHORAGE DEPTH /4″ WASHER AND NUT H IN INCHES, PER WALL WIDTH AND W WIND UPLIFT FORCE
WIND UPLIFT FORCE FROM
TABLE R802.11 (PLF)		 ANCHORAGE DEPT
≤ 12″ Wall Widthc		 ** IN INCHES, PER WALL WIDTH AND W**
≤ 16″ Wall Widthc		 ** IND UPLIFT FORCE**
≤ 24″ wall widthc
< 75 16 12 12
< 100 24 16 12
< 150 48 o.c. continuous from founda-
tion to bond beamd		 24 16
< 200 48 o.c. continuous from founda-
tion to bond beamd		 48 o.c. continuous from founda-
tion to bond beamd		 24

For SI: 1 inch = 25.4 mm. a. For wood bond beams a maximum of 6 inches from bond beam ends. b. For minimum 6-inch by 8-inch concrete bond beams, at 18″ o.c. for wind uplift forces less than 75 pounds per linear foot, and at 16″ o.c. for wind uplift forces

less than 100 pounds per linear foot. c. Excluding finishes. d. With 7-inch embedment in foundation, 4-inch embedment in concrete bond beam or full penetration through wood bond beam with 2-inch by 2-inch by 1 /4 inch washer and nut.

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▸Contents — California Residential Code (Title 24, Part 2.5)
California Residential Code (Title 24, Part 2.5)
  1. Chapter 2 — DEFINITIONS AND ABBREVIATIONS
  2. Appendix AF — RADON CONTROL
  3. Appendix AI — PRIVATE SEWAGE
  4. Appendix AJ — EXISTING
  5. Appendix AK — SOUND
  6. Appendix AO — AUTOMATIC
  7. Appendix AR — LIGHT STRAW-CLAY
  8. Appendix AS — STRAWBALE
  9. Appendix AU — COB CONSTRUCTION
  10. Appendix AV — BOARD
  11. Appendix AW — 3D-PRINTED BUILDING
  12. Chapter 1 — SCOPE AND APPLICATION
  13. Chapter 3 — BUILDING PLANNING
  14. Chapter 4 — FOUNDATIONS
  15. Chapter 5 — FLOORS
  16. Chapter 6 — WALL CONSTRUCTION
  17. Chapter 7 — WALL COVERING
  18. Chapter 8 — ROOF-CEILING CONSTRUCTION
  19. Chapter 9 — ROOF ASSEMBLIES
  20. Chapter 10 — CHIMNEYS AND FIREPLACES
  21. Chapter 44 — REFERENCED STANDARDS
  22. Appendix AH — PATIO COVERS
  23. Appendix AL — PERMIT FEES
  24. Appendix AQ — TINY HOUSES
  25. ▸Appendix AT — SOLAR-READY PROVISIONS—DETACHED ONE- AND
    Overview
    1. Section AT101 — (RB101)
    2. Section AT102 — (RB102)
    3. Section AT103 — (RB103)
    4. Section AU101
    5. Section AU102
    6. Section AU103
    7. Section AU104
    8. Section AU105
    9. Section AU106
    10. Section AU107
    11. Section AU108
    12. Section AU109
    13. Section AU110
    14. Section AV101
    15. Section AW101
    16. Section AW102
    17. Section AW103
    18. Section AW104
    19. Section AW105
    20. Section AW106
  26. Appendix AX — SWIMMING POOL SAFETY ACT
  27. Appendix AY — AREAS PROTECTED BY THE FACILITIES
  28. Appendix AZ — EMERGENCY HOUSING

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