February 22, 2021
- Company News
Insulgard’s TTH350 Door System Chosen as Top 75 New Product by Building Design+Construction

Highlighted as an editors’ pick in the windows and doors category, Insulgard’s TTH350 is the first glazed aluminum door system certified by UL to meet critical standards for use in tornado and hurricane storm shelters, as mandated by the 2015 International Building Code.
What is the TTH350 Door System?
The TTH350 door system provides maximum protection for safe rooms designed to withstand extreme weather events, such as tornadoes and hurricanes. Certified by UL to meet FEMA P-361-21 and ICC 500-20 standards, these doors are tested to endure wind speeds up to 250 mph. Constructed from extruded aluminum and featuring a bullet-resistant glazing system, the TTH350 offers proven impact resistance, providing peace of mind in extreme conditions.
System Features
COVID-19 has impacted basically every industry during the past year. Though the pandemic is still affecting markets around the country, vaccines have started to become available, providing hope for millions.
However, this also means that these vaccines are incredibly sought after, both by people seeking protection and those looking to acquire these products for their own financial gain. So pharmacies and storage facilities have had to increase security measures to keep this medicine safe. And bullet resistant glass has become a major part of the solution. Of course, other measures are in place as well. But since the vaccines will have to be distributed widely throughout the country, it’s likely that bullet resistant glazing systems will continue to increase in popularity at pharmacies and other distribution centers.
Emerging Industries Make Use of Bullet Resistant Glass
The TTH350 door system offers key features, including:
- Various configurations (single or paired doors)
- Bullet resistance (UL752 Level 3)
- Easy installation with pre-assembled components
This system is an ideal solution for ensuring safety and security in critical environments, such as:
- Schools and Universities
- Law Enforcement Facilities
- Fire and Rescue Facilities
- Emergency Operations Centers
- Community Shelters
- Corporate Headquarters
- Storm Shelters
- Safe Rooms
For added convenience, optional electrified hardware is available, making the TTH350 a versatile choice for both security and operational needs.
Learn More
For nearly 50 years, Insulgard Security Products has been a trusted partner for architects and construction professionals focused on designing and building safer facilities. Our STORMDEFEND impact-resistant windows and doors strengthen infrastructure in some of the most hurricane- and tornado-prone areas in the U.S.