Commercial buildings in Broward face higher wind loads due to their height and exposure. Design pressures increase dramatically at upper floors and corners. Here's what you need to specify.
Commercial building requirements vary significantly by height and use.
1-2 Stories | Ground Level
3-6 Stories | 30-75 ft
7+ Stories | 75+ ft
Reference values for Exposure C conditions in Broward County HVHZ.
Choosing the right glazing system for your commercial project.
Shop-fabricated frames
Field-assembled or unitized
Commercial window design pressures range from +/-60 PSF for low-rise storefronts to +/-100+ PSF for high-rise curtain walls. Pressures increase with building height and are approximately 25% higher at corners (Zone 5) than center walls (Zone 4).
Storefront systems are shop-fabricated, span between floors, and handle pressures up to +/-75 PSF. Curtain wall systems are field-assembled, hang from the building structure, and can handle +/-100+ PSF for taller buildings.
Yes. All commercial buildings in Broward County's HVHZ require either impact-rated glazing or hurricane shutters. Impact glazing must pass large missile testing (9-lb 2x4 at 34 mph) for openings within 30 feet of grade.
Corner zones (Zone 5) experience approximately 25-30% higher wind pressures than field areas due to wind acceleration around building edges. Windows within 10% of the building width from corners must be rated for these higher pressures.
Calculate exact design pressures for your commercial project. Zone-by-zone specifications for curtain wall and storefront systems.
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