Complete specifications for HVHZ-compliant bi-fold doors. Compare 2, 4, and 6+ panel configurations with wind load requirements for Miami-Dade hurricane zones.
Side-by-side specifications for HVHZ-compliant bi-fold door configurations.
Compact opening
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Maximum opening
Yes, bi-fold doors can meet HVHZ requirements when properly engineered. Design pressures typically range from +/-45 to +/-60 PSF depending on panel size and configuration. Several manufacturers offer NOA-approved bi-fold systems for hurricane zones.
Maximum openings depend on panel count and required design pressure. Two-panel systems typically reach 8 feet wide. Four-panel systems can span 16 feet. Six or more panels can achieve 24+ feet but may require lower design pressure ratings.
The track system is critical for HVHZ compliance. Heavy-duty top-hung tracks are preferred for wind resistance as they support the door weight while transferring wind loads to the header. The track must be properly anchored to structural members.
Impact bi-fold doors range from $800-1,500 per square foot installed. A typical 4-panel 12-foot wide system costs $15,000-25,000 depending on height and glass options. Costs increase with panel count and higher design pressure requirements.
PE-stamped wind load calculations specific to your bi-fold door configuration and building location.
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