Cool Roof Requirements: Mountain View vs Palo Alto
How do cool roof requirements rules compare between Mountain View, CA and Palo Alto, CA?
Mountain View and Palo Alto have similar restriction levels.
Mountain View, CA
Santa Clara County
Santa Clara County Title B Building Code adopts CALGreen Title 24 Part 11 baseline plus reach-code amendments requiring cool roofing on new construction and major reroofs in unincorporated areas. Reflective materials must meet minimum solar reflectance and thermal emittance ratings under Title 24 Part 6.
View full Mountain View rules →Palo Alto, CA
Santa Clara County
Santa Clara County Title B Building Code adopts CALGreen Title 24 Part 11 baseline plus reach-code amendments requiring cool roofing on new construction and major reroofs in unincorporated areas. Reflective materials must meet minimum solar reflectance and thermal emittance ratings under Title 24 Part 6.
View full Palo Alto rules →Key Facts Comparison
| Fact | Mountain View | Palo Alto |
|---|---|---|
| County citation | SCC Code Title B Building Code | SCC Code Title B Building Code |
| State baseline | CALGreen Title 24 Part 11 | CALGreen Title 24 Part 11 |
| Low-slope reflectance | 0.55 aged minimum | 0.55 aged minimum |
| Steep-slope reflectance | 0.20 aged in CZ 3-4 | 0.20 aged in CZ 3-4 |
| Enforcement | SCC Planning and Development | SCC Planning and Development |
Highlighted rows indicate differences between cities.
Mountain View FAQ
Do I need a cool roof when I patch my existing roof?
Repairs of less than 50 percent of total roof area are exempt. Reroof projects exceeding that threshold trigger Title 24 cool-roof requirements with specific aged reflectance and emittance values matched to slope and CEC Climate Zone.
Can I get a rebate for a cool roof?
Yes. PG&E, BayREN, and Silicon Valley Clean Energy rebates plus CRRC-rated material rebates from manufacturers can offset costs. Check Energy Upgrade California listings for current cool-roof and heat-pump combined incentives.
Palo Alto FAQ
Do I need a cool roof when I patch my existing roof?
Repairs of less than 50 percent of total roof area are exempt. Reroof projects exceeding that threshold trigger Title 24 cool-roof requirements with specific aged reflectance and emittance values matched to slope and CEC Climate Zone.
Can I get a rebate for a cool roof?
Yes. PG&E, BayREN, and Silicon Valley Clean Energy rebates plus CRRC-rated material rebates from manufacturers can offset costs. Check Energy Upgrade California listings for current cool-roof and heat-pump combined incentives.
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