Definition
These structural modifications strengthen homes to withstand earthquakes—bolting foundations, bracing cripple walls, and installing seismic damping systems.
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Retrofits include foundation bolting, cripple wall bracing, and seismic damping. Older homes are particularly vulnerable. Retrofits cost $3,000-15,000+ depending on scope. Reduce injury risk and property damage. Insurance discounts may apply. Building codes in seismic zones often require retrofits. Professionals assess needs and recommend improvements. Structural engineers design retrofits. Critical for homes built before modern seismic codes.
Pro Tip
Research seismic risk and retrofit programs in earthquake zones before purchasing.
Example
An earthquake retrofit bolted an older foundation and braced cripple walls preventing collapse.