How Do Structural Engineers Assess Post-Tornado Damage?

The first step in a post-tornado assessment is a careful walkthrough of the property. The engineer looks for obvious hazards like broken glass, exposed wiring, or unstable walls. They also note any immediate risks that could cause injury, such as a sagging ceiling or a leaning chimney. This initial scan helps set priorities for the detailed inspection.

During this phase, the engineer checks the overall alignment of the structure. They look for signs that the building shifted on its foundation, which is common after a tornado. They also examine the condition of the roof deck and how it connects to the walls. These observations guide the rest of the assessment.

• Check for cracked or leaning walls
• Look for gaps between the foundation and the sill plate
• Note any broken or missing roof sheathing
• Inspect for water stains or active leaks
• Identify any visible bowing of floor joists or rafters
• Record the condition of exterior doors and windows

The roof is usually the first part of a house to suffer tornado damage. The engineer walks the roof if it is safe, or uses binoculars and drones to inspect it from the ground. They look for missing shingles, lifted flashing, or tears in the underlayment. Any breach in the roof can let rain in, which leads to structural water damage.

• Look for missing or displaced roof tiles
• Check for open seams along the ridge and eaves
• Inspect for cracks that run diagonally across walls
• Test whether doors and windows still open and close
• Look for water stains on interior walls and ceilings
• Check the condition of the chimney and its flashing

After the inspection, the engineer provides a list of necessary repairs. Some issues are cosmetic, like a dented gutter, while others are structural, like a cracked foundation. The engineer prioritizes repairs based on safety and the risk of further damage. You can then decide what to fix first.

For water damage that follows a tornado, drying the structure is critical. If the roof leaked, the framing may be wet and prone to mold. Structural drying services can help remove moisture from wood and drywall. Once the structure is dry, you can move forward with repairs. If you live in Tulsa, keep your insurance paperwork in a safe place.

• Temporary shoring or bracing may be needed
• Roof repairs should happen before interior work
• Water-damaged insulation should be removed
• Dried-in place may be necessary before rebuilding
• Electrical and plumbing systems need inspection
• Mold remediation may be required if moisture sat in