A cool roof reflects more sunlight and absorbs less heat than a standard roof. Using high-SRI, CRRC-rated materials like reflective shingles and white TPO, we lower roof surface temperatures by up to 50°F and cut cooling costs 10–30% — while handling every part of California's Title 24 energy code for you.
A cool roof is a roofing system engineered to reflect more sunlight and absorb less heat than a standard roof. By using high Solar Reflectance Index (SRI), CRRC-rated materials, a cool roof can lower roof-surface temperatures by up to 50°F and reduce cooling energy use by 10–30%.
Reflects UV & solar rays — bounces solar radiation back into the atmosphere instead of into your attic.
Reduces heat transfer — keeps your attic and living space naturally cooler during San Jose's long, dry summers.
Title 24 compliant — meets California Energy Code reflectance and thermal-emittance standards.
Lowers AC costs — cuts cooling demand on your HVAC system when it matters most.
Yes — in most cases. San Jose sits in California Energy Commission Climate Zone 4, where Title 24, Part 6 applies cool-roof reflectance standards to re-roofing projects when more than 50% of the roof is replaced, as well as to new construction. Only CRRC-rated products qualify, and the City of San Jose has adopted local amendments that can be stricter than the state minimum. We handle the SRI documentation and San Jose roofing permits so your roof passes inspection.
For steep-slope roofs, Title 24 sets a minimum aged solar reflectance of ~0.20 and thermal emittance of ~0.75 — or a minimum SRI of 16. A qualifying cool roof reflects 25%+ of sunlight. Every material we install is CRRC-rated and documented for compliance.
Our team pulls the City of San Jose building permit, verifies your material's CRRC rating, and provides the Title 24 documentation inspectors ask for — so there are no surprises at final inspection and no compliance headaches for you.
We install premium, CRRC-rated materials from the industry's most trusted manufacturers — matched to your home, budget, and roofline.
Owens Corning & CertainTeed shingles with "cool" granules that mimic a traditional look while exceeding Title 24 standards.
Naturally thermal-resistant, high-mass concrete tile that adds an extra insulating air layer — plus a Class A fire rating.
A white, single-ply thermoplastic membrane — the industry standard for maximum reflectivity on modern and commercial low-slope roofs.
Premium metal roofing systems with cool-paint technology that deliver a 50+ year lifespan and some of the highest SRI ratings available.
In the South Bay's rising-cost, high-heat microclimate, a cool roof isn't just maintenance — it's a high-ROI upgrade that pays back through lower bills.
Save up to 20% annually on cooling. Reflective materials cut the thermal load on your HVAC during California's peak summer months, when a dark roof can hit 170°F.
Staying cooler means less thermal expansion and contraction — reducing the "thermal shock" that causes premature cracking and shingle degradation.
Cool roofs help mitigate the urban heat-island effect in dense areas like San Jose and Cupertino, and CRRC-rated installs can qualify for California energy incentives — we provide the documentation you need.
A high-performance, start-to-finish experience built to maximize energy efficiency — we handle the Title 24 details so you enjoy a cooler home and lower bills.
We inspect your existing roof structure and attic ventilation, then send a detailed digital report that identifies heat-trapping issues and recommends the best high-reflectivity materials for your roofline.
We take the stress out of California's energy codes — managing all City permits and ensuring your project meets or exceeds Title 24 (Part 6) cool-roof requirements, with full SRI verification and documentation.
Our factory-certified crews install your high-performance system with meticulous detail, optimize attic ventilation, and finish with a full magnetic sweep and a final inspection that guarantees long-term thermal performance.
Owens Corning Platinum Preferred Contractors — a status held by fewer than 1% of roofers nationwide. With 16+ years of local expertise, we know the exact code requirements of the San Jose Community Development Department and the City of Cupertino.
A real Title 24 cool-roof replacement at 528 Mountain Home Dr, San Jose, CA 95136 — a single-family home in the 95136 area.
In most cases, yes. San Jose is in California Energy Commission Climate Zone 4, where Title 24 applies cool-roof reflectance standards to re-roofs that replace more than 50% of the roof, plus new construction. Only CRRC-rated materials qualify, and San Jose's local amendments can be stricter than the state minimum.
Cool roofs typically cut cooling energy use by 10–30%, and homeowners often see up to about 20% off annual cooling costs. Savings come from a roof surface that can run up to 50°F cooler on peak days, easing the load on your HVAC system.
CRRC-rated cool-roof installations can qualify for California energy incentives — statewide programs like Energy Upgrade California and certain PG&E offerings have provided rebates for qualifying upgrades. Amounts and availability change over time, so we help you document the CRRC rating and Title 24 compliance needed to apply.
Yes. Any "heat-loss" penalty in winter is negligible compared with the large savings during the 8+ months of warm California weather. For San Jose's climate, the summer cooling benefit far outweighs any minor winter trade-off.
For most materials the cost is comparable to a standard roof of the same type — color and reflective granules add only a small premium. Given the energy savings and potential rebates, a cool roof is typically a high-ROI upgrade over its lifespan.
For pitched residential roofs, CRRC-rated reflective shingles (Owens Corning / CertainTeed) give a traditional look with cool performance. For flat or commercial roofs, white TPO membrane offers the highest reflectivity. We match the system to your roofline, budget, and Title 24 requirements.
Get a free, no-obligation cool-roof estimate from San Jose's Owens Corning Platinum Preferred team. We handle the Title 24 compliance — you enjoy a cooler home.
Aerial footage of a completed Title 24-compliant reflective cool roof installed by Lifetime Roofing & Renovation in San Jose, California.
