When it comes to protecting your family, students, or community from the devastating effects of a tornado, settling for anything less than the highest level of safety just isn’t an option. Seves Glass Block’s LightWise® Architectural Systems Tornado Resistant Windows are designed to withstand wind speeds up to 250 mph—offering unmatched protection without sacrificing natural light or visibility, two factors frequently cited as top concerns in tornado shelters.

In a survey conducted about 15 years ago, people who had used tornado shelters overwhelmingly identified two major issues:

1. It felt claustrophobic when the power went out and we were in total darkness.
2. We didn’t know when it was safe to open the door because we couldn’t see outside.

Whether you're building or upgrading a Safe Room, Community Shelter, School, or Government Facility, these windows deliver both peace of mind and visibility during extreme weather events.

Safety Meets Clarity: Built for the Storm, Made for Real Life

Seves' tornado-resistant window system is factory assembled for precision and reliability. Constructed with laminated VISTABRIK® solid glass block and housed in a durable steel frame and grid, these windows are as tough as they are transparent. Even under the extreme pressures of tornado-force winds, they allow occupants to see outside—providing visibility and daylight in a space that otherwise relies on artificial lighting.

And it’s not just about brute strength. With minimal maintenance required and excellent resistance to UV damage, these windows are built to last—and built to protect.

Tested Tough: Certified for Real-World Impact

Seves LightWise® Tornado Resistant Windows meet or exceed the most stringent safety standards, including FEMA 361, FEMA 320, ICC 500, and ASTM testing protocols:

• ✅ Air Pressure Ratings: +309/-413 psf (equivalent to winds over 400 mph)
• ✅ Missile Impact: Withstands two impacts from a 15 lb. 2x4 traveling at 100 mph
• ✅ Tested Standards: ASTM E283 (air leakage), ASTM E330 (structural performance)
• ✅ Meets FEMA Guidance: For both community and residential safe rooms

For perspective, the highest recorded wind speed on Earth is 253 mph—making the performance of these windows even more extraordinary.

Why Choose LightWise® Tornado Resistant Windows?

• ✔️ Unmatched Strength – Steel frame + laminated VISTABRIK® for maximum durability
• ✔️ Factory Assembled – Ensures consistent quality and reduces on-site labor costs
• ✔️ Visibility & Light Transmission – Maintain vision and natural light in protected areas
• ✔️ Enhanced Security – Superior resistance to debris and forced entry
• ✔️ Custom Sizes Available – Flexible design integration for any project

Bright. Safe. Built for the Storm.

Tornadoes are unpredictable—but your building’s protection doesn’t have to be. Seves Glass Block has combined innovation, strength, and light transmittance into a window that meets the most rigorous safety standards while offering the visibility and peace of mind you deserve.

When designing your next safe room or shelter, choose a window that stands strong when it matters most—choose **Seves LightWise® Tornado Resistant Windows**.