Vinyl hurricane window frames. Vinyl insulates much better than aluminum and is also a low-routine maintenance materials. It typically has considerably less style and much less shade selections, but you can find mix vinyl-and-Wooden frames readily available that provide the next degree of insulation and are even a lot easier http://news.usandcanadareport.com/story/489637/highperformance-impact-windows-built-to-meet-florida-building-code-standards.html