AAMA Certified Strength: GBA Windows Withstand 14500Pa Wind Pressure

Strong winds can seriously damage a building’s exterior features. The risk increases when glass doors, windows, and curtain walls aren’t robust enough to resist the intense pressure caused by wind events such as hurricanes, cyclones, or typhoons.

To ensure safety and structural reliability, GBA conducts extreme pressure testing based on the AAMA/WDMA/CSA 101/I.S.2/A440-17 and ASTM E330 standards.

STM E330: Structural Integrity Under Uniform Load

The ASTM E330 standard is designed to evaluate how exterior components perform under uniform static air pressure, replicating real-world wind load conditions.

During the test, each unit is sealed into a pressure chamber. Air is pumped in or out to create positive and negative pressure scenarios. The peak pressure is held for 10 seconds, then released. After stabilizing, permanent deformation is measured.

Test Item

Requirement

Result

Positive Pressure Tested

8720 Pa

Simulates wind pushing against exterior

Negative Pressure Tested

Passed under extreme load conditions

Comment:

These ratings exceed typical standards for residential and commercial buildings, making GBA systems ideal for high-rise towers, coastal developments, and storm-prone regions.

GBA Performance Highlights

Simulates suction during strong wind events

Minimum Structural Pressure (STP)

14500 Pa

Ensures stability and durability under severe conditions

Maximum Deflection – Handle Side Stile

0.5 mm

Within acceptable limits for functionality

Maximum Deflection – Bottom Rail

0.2 mm

Minimal deflection, indicating strong structural integrity

When Failure Happens: Transparent & Controlled Testing

• If the cause is structural failure, the test is stopped and recorded.

• If no structural issue, the glass is replaced and testing resumes at the same load level.

• Testing follows strict protocol to ensure accurate, reproducible results.

In rare cases, a specimen may fail during the test. If glass breakage occurs, we analyze whether it results from structural frame failure or glass weakness.

On-Site Test Footage

With nearly 20 years of experience in high-performance aluminum systems and international façade engineering, GBA is your trusted partner in structural-grade windows, doors, and curtain wall solutions.

📩Contact us today for test reports and project-specific consultation.

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