The Spiral® HZ® (Hurricane Zone) door is the first high-speed, high-performance hurricane-rated door certified for compliance with Miami-Dade County and the Florida Building Code. Heavy-duty reinforced hinges and rigid aluminum slats provide the strength required to handle hurricane-force winds. Miami-Dade County, Florida NOA No. 23-0929.05 and Florida Product Approval FL# FL28502-R3. Able to withstand winds up to 175 miles per hour, it is the only certified wind load door currently on the market. The Spiral HZ door is ideal for government, parking, security, and automotive dealerships and can be built up to 16′ wide x 20′ 11″ high. When it comes to commercial hurricane-rated doors the Spiral HZ can help protect buildings in the worst conditions. Spiral HZ is backed by a 5-year limited warranty on motor/mechanical components and materials, plus a 2-year limited warranty on electrical components.