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Earlier editions: 20222019

Appendix A6

Section A6.407 — [OSHPD 1, 2 & 4]—WATER RESISTANCE AND MOISTURE MANAGEMENT

California Green Building Standards Code (Title 24, Part 11) · 2025 edition · updated 2026-09-12 · California

A6.407.3 Weather protection. Provide a weather-resistant exterior wall and foundation envelope as required by California Building Code Section 1403.2 and California Energy Code Section 150, manufacturer’s installation instructions or local ordinance, whichever is more stringent.

A6.407.4 Moisture control. Employ moisture control measures by the following methods.

A6.407.4.1 Sprinklers. Design and maintain landscape irrigation systems to prevent spray on structures.

A6.407.4.2 Entries and openings. Design exterior entries and/or openings subject to foot traffic or wind-driven rain to prevent water intrusion into buildings.

Notes:

  1. Use features such as overhangs and recesses and flashings integrated with a drainage plane.

APPENDIX A6.1-32 2025 CALIFORNIA GREEN BUILDING STANDARDS CODE

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

APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

  1. Use nonabsorbent floor and wall finishes within at least two feet around and perpendicular to such openings.

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▸Contents — California Green Building Standards Code (Title 24, Part 11)
California Green Building Standards Code (Title 24, Part 11)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GREEN BUILDING
  4. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  5. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  6. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  7. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  8. Chapter 4 — RESIDENTIAL MANDATORY MEASURES
  9. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  10. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  11. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  12. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  13. Chapter 5 — NONRESIDENTIAL MANDATORY MEASURES
  14. Chapter 6 — REFERENCED ORGANIZATIONS AND STANDARDS
  15. Chapter 7 — INSTALLER AND SPECIAL INSPECTOR QUALIFICATIONS
  16. Chapter 8 — COMPLIANCE FORMS, WORKSHEETS AND REFERENCE MATERIAL
  17. Appendix A4
  18. Appendix A5
  19. ▸Appendix A6
    Overview
    1. Section A6.106 — SITE DEVELOPMENT
    2. Section A6.202 — DEFINITIONS
    3. Section A6.203 — PERFORMANCE APPROACH
    4. Section A6.204 — PRESCRIPTIVE APPROACH
    5. Section A6.205 — [OSHPD 1 & 4]—BUILDING ENVELOPE
    6. Section A6.207 — [OSHPD 1, 2 & 4]—HVAC DESIGN, EQUIPMENT AND I…
    7. Section A6.210 — [OSHPD 1, 2 & 4]—APPLIANCES
    8. Section A6.401 — GENERAL
    9. Section A6.407 — [OSHPD 1, 2 & 4]—WATER RESISTANCE AND MOISTUR…
    10. Section A6.408 — CONSTRUCTION WASTE REDUCTION, DISPOSAL AND RE…
    11. Section A6.410 — BUILDING MAINTENANCE AND OPERATION
    12. Section A6.504 — POLLUTANT CONTROL
    13. Section A6.505 — [OSHPD 1, 2 & 4]—INDOOR MOISTURE CONTROL

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