From Case Study: Alys Beach, Fla., Custom Home Flat concrete roof tiles from Entegra are finished bright white per the neighborhood design guidelines and to effectively reflect heat from the attic and living spaces. Roof temperatures are 30 degrees F cooler than asphalt, which helps reduce cooling energy loads. The 13-inch tiles present a uniform, tailored roofline for an upscale look. They are available in smooth (specified), tapered shake, and slate-look styles. 800.586.7663. www.entegra.com.