Its impact windows are designed for Superior-Velocity Hurricane Zones and meet up with stringent Florida making needs. They are proof against extreme winds and compelled entry and received’t crack from particles in a very severe storm. In addition, the interior glass is laminated, rendering it shatterproof for further protection. From http://www.phoenixnewsdesk.com/news/story/535078/highperformance-impact-windows-built-to-meet-florida-building-code-standards.html