Strong Roofs Help Stand Up To Tornadoes

Strong Roofs Help Stand Up To Tornadoes

Researchers show much of the damage from tornadoes comes from homes not being secured together adequately. If you focus on windows and doors, and tie your truss into roof rafters and anchor the roof to the walls with metal clips and straps and then securely anchor your walls to the foundation; your home should be able to withstand winds at 110 to 120 mph.

The institute of Business and Home Safety in Tampa Florida says that 77% of tornadoes have wind speeds of less than 110 mph. It may cost 2-3% more to connect your house together, but the savings will be evident when your home is still standing after high winds rip through your neighborhood.

There are no tornado building codes; most cities require codes for earthquakes, hurricanes and floods. FEMA estimates to build an 8 X 8 foot safe room inside your home, it would cost $6,500 to $8,500

According to the Florida Institute, 110 to 120 MPH winds can destroy a typical house in 4 seconds. The problems begin when the wind carrying debris shatters doors and windows, then air rushes in your home and the structure is pressurized. The internal pressure builds and pushes against the ceiling and roof. The roof is also getting pressure from the outside wind. Once the roof blows off, the walls can collapse.

While your home may not stand up to a direct hit from a severe tornado, connecting your roof to walls, and walls to foundation will help your home survive.

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