R909 Roof Coatings — 2025 California Residential Code
California Residential Code (Title 24, Part 2.5) · 2025 edition · updated 2026-09-26 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Residential Code (Title 24, Part 2.5) § R909 · Effective January 1, 2026 · Official source: Building Standards Commission
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
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: †
10-2 2025 CALIFORNIA RESIDENTIAL CODE
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