Impact Resistant Glazing Materials

OVERVIEW

Build your storm shelter to protect against the force of tornadoes and hurricanes with Insulgard’s cutting-edge, impact-resistant glazing systems. 

As a part of our STORMDEFEND tested assemblies, Insulgard offers innovative wind and impact-resistant glazing materials that can withstand the wind pressures and debris impacts associated with an EF-5 tornado. 

Insulgard’s TORGARD30 and TORGARD30-IG glazing makeups, which are seamlessly integrated into the TTH350 door system and TTH600 window system, have been tested and certified by UL to meet ICC500-20 and FEMA361-21 requirements for use in tornado and hurricane-safe rooms. 

As part of the testing, the glass must withstand 360psi, debris impacts from a wood 2×4 at 100mph, and cyclic pressure testing. The glass must provide complete protection, allowing no penetration of the projectile and no glass spall to the safe side.  

TORGARD30 and TORGARD30-IG have also achieved UL752 level 3 bullet resistance certification. 

TORGARD30 and TORGARD30-IG have only been tested and certified as part of the STORMDEFEND TTH350 and TTH600 systems and may not meet Wind and Impact ratings as a part of any other systems. 

For more information about Insulgard wind and impact-resistant glazing materials, browse the product datasheets below, or contact us.

PRODUCTS

Factors Influencing Vulnerability to Weather Hazards 

Impact-resistant windows are crafted with layers of tempered or laminated glass. Advanced bonding and glazing techniques create a robust barrier that can withstand high winds, flying debris, and water ingress.  

For occupants in zones prone to hurricanes, tornados, and extreme weather conditions, the strength and resilience of layered construction offers enhanced safety and peace of mind. 

Wind Speeds and Pressure 

• High wind speeds during hurricanes, tornadoes, and strong storms exert immense pressure on buildings, particularly on windows and glass surfaces, making them vulnerable to shattering and structural failure.  
• A traditional window may have a design pressure rating of 50 pounds per square foot, which translates to roughly 140 mph, before experiencing structural failure.  
• Insulgard’s impact-resistant glazing meets FEMA and ICC certification standards to withstand hurricane and tornado wind speeds up to 250 mph.  

Projectile Debris 

• During storms or other natural disasters, buildings are often exposed to projectile debris propelled by high winds. These flying objects pose a significant threat to windows and glass facades, increasing the risk of structural damage and injury to occupants.  
• A traditional window or door may be rated to 40 to 100 pounds psf in a hurricane zone, which offers modest protection, but may not hold up against hurled objects. 
• Insulgard’s impact-resistant glazing is engineered to FEMA and ICC standards to withstand 188 to 300 psf, providing security against propelled debris and even bullets. 

Water Ingress 

• During heavy rains, storm surges, or floods, water can make its way through doors and windows, causing compromise to the structural integrity of your interior spaces.  
• Traditional glass windows are particularly susceptible to leakage and water infiltration during extreme weather events, leading to costly repairs and potential hazards.  
• Insulgard’s impact-resistant glazing not only offers protection against physical impacts but also helps prevent water ingress through a robust construction with tight, certified seals. 
   

Applications of Impact-Resistant Glazing Materials 

STORMDEFEND windows, doors, and glazing materials are designed for new-construction tornado and hurricane safe rooms that are required to meet ICC 500 certification standards. 

Cities and states in 250mph wind zones that have adopted the International Building Code® from 2015 or later require all new K-12 schools and critical emergency facilities (such as 911 call stations, emergency operations centers, and police, fire, rescue, and ambulance stations) to build storm shelters that meet ICC500 requirements and that can withstand an EF5 tornado. Insulgard’s wind and impact resistant glazing, doors, and windows are engineered for these applications. 

Benefits of Implementing STORMDEFEND Impact-Resistant Glazing Systems 

For builders or contractors, incorporating STORMDEFEND impact-resistant glazing systems into new construction projects offers numerous advantages, particularly for facilities required to meet ICC 500 standards. 

• Enhanced Reputation: Installing impact-resistant glazing systems demonstrates a commitment to quality craftsmanship and proactive risk management, essential for projects in regions prone to severe storms. This can attract clients who need safe, secure, and durable building solutions.
• Competitive Advantage: Offering STORMDEFEND impact-resistant glazing systems provides a competitive edge, especially in regions where local codes mandate storm shelters or safe rooms in facilities like K-12 schools and critical emergency operations centers.  
• Client Satisfaction: By installing impact-resistant glazing materials, you ensure clients are compliant with building code standards and best practices to protect against extreme weather.
• Reduced Liability: STORMDEFEND systems help mitigate risks associated with property damage, personal injury, and insurance claims, thereby reducing the potential for legal disputes and financial liabilities. 
• Streamlined Construction Process: Designed for ease of installation, Insulgard systems allow you to streamline the construction process, minimize delays, and efficiently meet project deadlines. Additionally, Insulgard offers installation services to further support your project needs.  

Ready to differentiate your business with advanced glazing products? Request a quote. 

Frequently Asked Questions 

How effective is impact-resistant glazing against natural disasters like hurricanes and earthquakes? 

Impact-resistant glazing is highly effective against natural disasters. It’s engineered to withstand high (250 mph) winds, flying debris, and other forces typical of hurricanes and tornadoes. While it’s not specifically designed for earthquakes, glazed panes can still provide some level of protection against shattered glass. 

Can impact-resistant glazing be retrofitted into existing buildings? 

Our impact-resistant glazing is designed exclusively for new construction projects, ensuring optimal performance and compliance with the highest safety standards. By integrating these advanced systems from the early design stages of your building project, we provide unparalleled protection and durability for your new facilities.  

Is impact-resistant glazing more expensive compared to traditional glass solutions? 

Yes, impact-resistant glazing does cost more upfront than traditional glass solutions. However, the life safety benefits it provides in the tornado and hurricane shelters it’s installed in are relied upon in the case of a storm event.  

Are there any specific regulations or standards governing the installation of impact-resistant glazing systems?  

Yes, there are building codes, industry standards, and product certifications to ensure proper installation and performance of impact-resistant glazing materials. These regulations vary by location. The pros at Insulgard can advise you as to which state, federal, and local regulations apply to your shelter construction project.  

How do impact-resistant glazing materials withstand high winds and flying debris during storms? 

Impact-resistant glazing systems are designed with multiple layers, including laminated glass, tempered glass, or polymer interlayers. These layers absorb and distribute impact energy, preventing glass from shattering. Additionally, reinforced framing systems and proper installation techniques further enhance the glazing’s ability to withstand high winds and flying debris during storms.