A metal connector that secures roof trusses or rafters to wall plates, providing enhanced resistance to high winds and uplift forces.

A tornado strap is a metal connector that secures roof trusses or rafters to wall plates, providing enhanced resistance to high winds and uplift forces that can occur during severe weather events including tornadoes, hurricanes, and severe thunderstorms. This essential structural hardware consists of galvanized steel strapping or brackets that create positive connections between roof framing members and the supporting wall structure, preventing roof systems from lifting off or separating during extreme wind conditions. Tornado straps are critical components in high-wind construction where they provide continuous load paths, resist uplift forces, enhance structural integrity, and help buildings meet wind resistance requirements, making them indispensable safety features for protecting structures and occupants in areas prone to severe weather and high-wind events.

Tornado straps are utilized in various high-wind construction applications including residential construction in tornado-prone regions where they secure roof trusses and rafters to top plates, hurricane-resistant construction in coastal areas where they provide uplift resistance for roof systems, manufactured housing where they meet federal standards for wind resistance and structural integrity, agricultural buildings including barns and storage facilities where large roof areas create significant uplift forces, commercial construction where they secure roof framing in warehouses and industrial buildings, and retrofit applications where existing buildings are upgraded to improve wind resistance and meet current building codes. Each application requires appropriate strap types, installation methods, and connection details based on wind loads and structural requirements.

The types and construction of tornado straps include continuous strapping systems that run from foundation to roof peak providing uninterrupted load paths, individual strap connectors that secure specific framing connections at critical points, hurricane clips and ties that provide engineered connections for high-wind applications, retrofit straps designed for installation in existing construction, heavy-duty straps for extreme wind conditions and large structural members, and specialty connectors including adjustable straps and multi-directional ties for complex framing geometries. Material specifications typically include galvanized steel construction for corrosion resistance and specific gauge requirements based on load capacity needs.

Fun Fact: Tornado straps became widely adopted after the 1970s as building codes evolved to address increasing severe weather events, and modern engineered tornado straps can resist uplift forces exceeding 1,000 pounds per connection.

• Anchor Strap
• Seismic Strap