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Chapter 9 — ROOF ASSEMBLIES

Section R909 — ROOF COATINGS

2025 California Residential Code (Title 24, Part 2.5) · 2025 edition · updated 2026-07-29 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

R909.1 General.

The installation of a roof coating on a roof covering shall comply with the requirements of Section R902, Section R904 and this section. Roof coatings shall be installed in accordance with the manufacturer’s installation instructions.

R909.2 Material standards.

Roof coating materials shall comply with one of the standards in Table R909.2.

TABLE R909.2—ROOF COATING MATERIAL STANDARDS

COATING MATERIAL STANDARD
Acrylic coating ASTM D6083
Asphaltic emulsion coating ASTM D1227
Asphalt coating ASTM D2823
Asphalt roof coating ASTM D4479
Aluminum-pigmented asphalt coating ASTM D2824
Silicone coating ASTM D6694
Moisture-cured polyurethane coating ASTM D6947

9-20 2025 CALIFORNIA RESIDENTIAL CODE

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

CALIFORNIA RESIDENTIAL CODE – MATRIX ADOPTION TABLE

CHAPTER 10 – CHIMNEYS AND FIREPLACES

(Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

Adopting agency BSC BSC-
CG		 SFM HCD DSA OSHPD BSCC DPH AGR DWR CEC CA SL SLC
Adopting agency BSC BSC-
CG		 SFM 1 2 1/AC AC SS SS/CC 1 1R 2 3 4 5 5 5 5 5 5 5 5 5
Adopt entire chapter
Adopt entire chapter as
amended (amended
sections listed below)		 X
Adopt only those sections
that are listed below		 X
Chapter / Section
R1001.3 X
R1001.4 X
Table R1001.1, Footnote (b) X
R1001.11 X
Figure 1001.11 X
R1001.12 X
R1003.3 X
R1003.4 X
R1003.9.1 X
R1003.9.2 X
R1003.11.3 X
R1003.14 X
R1003.18 X
Figure R1003.18 X
R1003.19 X
R1004.1.1 X
R1004.4 †

The state agency does not adopt sections identified with the following symbol: †

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

10-2 2025 CALIFORNIA RESIDENTIAL CODE

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

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▸ Contents — 2025 California Residential Code (Title 24, Part 2.5)
2025 California Residential Code (Title 24, Part 2.5)
  1. Chapter 1 — ADMINISTRATION
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — BUILDING PLANNING
  4. Chapter 4 — FOUNDATIONS
  5. Chapter 5 — FLOORS
  6. Chapter 6 — WALL CONSTRUCTION
  7. Chapter 7 — WALL COVERING
  8. Chapter 8 — ROOF-CEILING CONSTRUCTION
  9. ▸ Chapter 9 — ROOF ASSEMBLIES
    Overview
    1. Section R901 — GENERAL
    2. Section R902 — FIRE CLASSIFICATION
    3. Section R903 — WEATHER PROTECTION
    4. Section R904 — MATERIALS
    5. Section R905 — REQUIREMENTS FOR ROOF COVERINGS
    6. Section R906 — ROOF INSULATION
    7. Section R907 — ROOFTOP-MOUNTED PHOTOVOLTAIC PANEL SYSTEMS
    8. Section R908 — REROOFING
    9. Section R909 — ROOF COATINGS
  10. Chapter 10 — CHIMNEYS AND FIREPLACES
  11. Chapter 44 — REFERENCED STANDARDS
  12. Appendix AA — BOARD OF APPEALS
  13. Appendix AB — PERMIT FEES
  14. Appendix AC — RESERVED
  15. Appendix BA — RESERVED
  16. Appendix BB — TINY HOUSES
  17. Appendix BC — RESERVED
  18. Appendix BD — RESERVED
  19. Appendix BE — RADON CONTROL METHODS
  20. Appendix BF — PATIO COVERS
  21. Appendix BG — SOUND TRANSMISSION
  22. Appendix BH — AUTOMATIC VEHICULAR GATES
  23. Appendix BI — LIGHT STRAW-CLAY CONSTRUCTION
  24. Appendix BJ — STRAWBALE CONSTRUCTION
  25. Appendix BK — COB CONSTRUCTION (MONOLITHIC ADOBE)
  26. Appendix BL — HEMP-LIME (HEMPCRETE) CONSTRUCTION
  27. Appendix BM — 3D-PRINTED BUILDING CONSTRUCTION
  28. Appendix BN — EXTENDED PLATE WALL CONSTRUCTION
  29. Appendix BO — EXISTING BUILDINGS AND STRUCTURES
  30. Appendix CA — RESERVED
  31. Appendix CB — RESERVED
  32. Appendix CC — RESERVED
  33. Appendix CD — RESERVED
  34. Appendix CE — RESERVED
  35. Appendix CF — RESERVED
  36. Appendix CG — NONSEWERED SANITATION SYSTEMS
  37. Appendix CH — PRIVATE SEWAGE DISPOSAL
  38. Appendix CI — SWIMMING POOL SAFETY ACT
  39. Appendix CJ — EMERGENCY HOUSING
  40. Appendix CK — AREAS PROTECTED BY THE FACILITIES OF THE CENTRAL…

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