Excellence contractors is pleased to offer Solar Reflective shingles to Georgia, customer from GAF- ELK and Certainteed. The GAF-ELK cool Color Series now promising energy savings and even tax credits! When you installed GAF- ELK Timberline. Cold series Shingles, now offers modern reflective technology. You can now join the green revolution with Cold Series solar reflecting shingles. Our performance reflective shingles can help lower the temperature in your attic, this way your home can stay cold in those hot summer days, and save on your air conditioning costs.