Heat Island Mitigation: Fontana vs Rialto
How do heat island mitigation rules compare between Fontana, CA and Rialto, CA?
Fontana and Rialto have similar restriction levels.
Fontana, CA
San Bernardino County
California Title 24 Building Energy Efficiency Standards mandate cool-roof reflectance values for new and re-roofed buildings in San Bernardino County climate zones 10, 14, 15, and 16, covering desert and mountain communities prone to extreme heat.
View full Fontana rules →Rialto, CA
San Bernardino County
California Title 24 Building Energy Efficiency Standards mandate cool-roof reflectance values for new and re-roofed buildings in San Bernardino County climate zones 10, 14, 15, and 16, covering desert and mountain communities prone to extreme heat.
View full Rialto rules →Key Facts Comparison
| Fact | Fontana | Rialto |
|---|---|---|
| Standard | Title 24 Part 6 | Title 24 Part 6 |
| Climate zones | 10, 14, 15, 16 | 10, 14, 15, 16 |
| Re-roof trigger | Over 50 percent area | Over 50 percent area |
| Rating body | Cool Roof Rating Council | Cool Roof Rating Council |
Highlighted rows indicate differences between cities.
Fontana FAQ
Does Title 24 apply to existing homes?
Major re-roofing replacing more than half the roof area triggers cool-roof compliance. Minor repairs and patches are usually exempt under the existing-building provisions of Title 24.
Is white the only cool roof color?
No, cool-roof pigments allow earth tones with high reflectance. Many CRRC-rated products in tan, gray, and brown colors meet Title 24 reflectance and emittance values for desert climate zones.
Rialto FAQ
Does Title 24 apply to existing homes?
Major re-roofing replacing more than half the roof area triggers cool-roof compliance. Minor repairs and patches are usually exempt under the existing-building provisions of Title 24.
Is white the only cool roof color?
No, cool-roof pigments allow earth tones with high reflectance. Many CRRC-rated products in tan, gray, and brown colors meet Title 24 reflectance and emittance values for desert climate zones.
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