Hurricane Impact Glass & Coastal Wind Glazing Systems
Houston's proximity to the Gulf Coast means that buildings face high wind and storm risks. During a major hurricane, the greatest danger to a building structure is a breach of the exterior envelope. If a window shatters, high-velocity winds enter the building, causing a massive increase in internal pressure that can lift the roof. Hurricane-resistant glass is designed to prevent this catastrophe, keeping the building envelope secure.
Understanding hurricane resistant glass Science
Hurricane glass consists of two heavy panes bonded to a thick structural interlayer (typically SentryGlas or heavy PVB). Under testing, the glass must withstand impact from a 9-pound 2x4 lumber projectile flying at 34 mph, followed by 9,000 cycles of positive and negative wind pressure.
Key Engineering Properties & Benefits:
- Structural Integrity: Designed to withstand significant wind load pressures and surface impact stresses.
- Safety Compliance: Meets strict local municipal building codes and safety regulations.
- Aesthetic Control: Available in low-iron, frosted, tinted, or back-painted configurations.
- Thermal Efficiency: Helps regulate internal temperatures, minimizing HVAC stress.
Texas Local Building Requirements
We install fully certified hurricane impact glazing systems that meet the Texas Department of Insurance (TDI) windstorm building codes and ASTM standards, ensuring storm protection for coastal structures.
Frequently Asked Questions
Do I need hurricane glass if I have storm shutters?
If you have certified, code-compliant storm shutters, standard windows are permitted. However, hurricane-resistant glass provides permanent, 24/7 protection without the need to deploy shutters before a storm.
What is the windborne debris region in Houston?
It is the geographic zone where design wind speeds exceed 130 mph. This includes coastal parts of Harris, Galveston, and Brazoria counties, where impact-rated glazing is mandated for new construction.