One of the 4 houses below looks like yours. See what kind of retrofit you need.

Cripple Wall Retrofits

If your home has more than 3 steps into the front or back doors you probably have a cripple wall.  This is a short wall between the foundation and the floor you walk on.  Unbraced cripple walls can collapse in earthquakes.  Preventing collapse is the purpose of a cripple wall retrofit.

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No Cripple Wall Retrofits

If you have no more than 1 or 2 steps leading into the front and back doors you will be able to attach the floor directly to the foundation with steel.  After these houses are securely attached to their foundations they are probably the safest houses of all.

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Houses with Living Area Above the Garage

Homes with living areas above a garage are hazardous because the garage door openings can collapse with catastrophic consequences.  This condition is called a soft story and the soft story retrofits keep prevent this kind of damage.

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Earthquake Brace and Bolt Program: It Needs a Retrofit 

A co-author of Earthquake Bolt and Brace mandatory seismic retrofit guideline looks at its many faults and cannot find any strengths. The Earthquake Brace and Bolt  program does not want you to watch this video!

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Post to Beam Connections

Former damage inspector and injury documentarian for the Federal Emergency Management Agency explains why strengthening this connection is a waste of money.

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Houses on a Steep Hillside

Home built on steep lots are very prone to catastrophic damage where fatalities can and do occur.  Hillside home retrofits must follow a special building code practically unknown in the Bay Area.

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Finding a Contractor

A seismic retrofit contractor with over 25 years experience shows you how to identify a competent contractor.  Find out which codes they should know, the type of research the should have done, and how to get references from engineers and professionals.

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How to Build a Shear Wall

We have been building retrofit shear walls for 25 years.  Here you will learn the easy to follow tricks of the trade that make building shear walls simple.

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