Vinyl hurricane window frames. Vinyl insulates better than aluminum and is a very low-servicing material. It generally has a lot less type and less coloration solutions, but there are actually mixture vinyl-and-Wooden frames out there that provide a better degree of insulation and are even less difficult to take care http://www.utahheadlines.com/news/story/490741/highperformance-impact-windows-built-to-meet-florida-building-code-standards.html