What are the best roof colors for the South Bay heat? The best shingle colors for homes in San Jose, Sunnyvale, and Santa Clara are “Cool Roof” rated shades of silver, light grey, and sand. These high-reflectivity shingles can lower your roof’s surface temperature by up to 50°F, significantly reducing your indoor cooling costs during a California heatwave. At Bay 101 Roofing, we don’t just care about how your home looks; we care about how it performs. In the Santa...