Improving Windstorm and Tornado Resilience: Recommendations for One- and Two-Family Residential Structures

This fact sheet provides recommendations for improving the windstorm and tornado resilience of wood-framed, one- and two-family residential structures in tornado-prone regions of the United States. It focuses on building envelope and load path enhancements, including the use of higher wind-rated materials, opening protection, and improved connection details to reduce damage from tornadoes rated EF2 or less, as well as severe thunderstorms and derechos. The guidance supplements existing building codes and is intended for both new construction and retrofits, targeting residential designers, builders, and homeowners. It references relevant standards and best practices for high-wind performance but does not address hazards other than wind.