Items with impact-resistant glass are rated for their potential to resist wind speeds in a variety of, predetermined wind debris zones termed Impact Zones, or IZ for short. If you need architectural guidance or wish to discuss a challenge, give us a contact or send us an email. Your neighborhood http://www.carnegiecoop.com/markets/stocks.php?article=getnews-2025-4-16-high-performance-impact-windows-built-to-meet-florida-building-code-standards