Florida heat makes roof energy performance a real cost item rather than a marketing angle.
Reflective metal, light-colored tile and cool-rated shingles reduce absorbed solar energy and lower attic temperature.
Tile roofs create an air gap between the covering and the deck, which reduces heat transfer independent of color.
The cheapest efficiency gains usually come from correcting ventilation and insulation rather than from the covering itself.
If solar is in your plans, address it at the time of re-roof. Mounting into a new roof is straightforward; retrofitting onto an aging one is not.
O'Brien Contracting — Florida roofing contractor, license CCC1335947. Call (239) 919-4485.