Tuesday, January 03, 2006

Retrofitting Explained

This site was recommended by a guy who does earthquake safety consulting and was offering free consults to Berkeley Parents Network members.

It provides a stunningly clear, visual explanation of how retrofitting works to keep a house from falling off the foundation when 10,000 pounds of shear force hits it during an earthquake. I learned a lot, including that the despite fact that our house is bolted down, it still would probably slide off the foundation in an earthquake. It also explains very clearly what we could do to minimize that possibility.

Spend five minutes looking at this site, then check out your foundation.

1 comment:

Deirdre said...

Yeah, this is one under-regulated market. In Berkeley, the retrofitting market evolved after the last 'big one' struck, so there is no reliable way to demonstrate that one technique works better than another. There are a lot of well-meaning people in the business but you will still hear some people say that Retrofit Business X is the greatest company, while other people say the same business is a ripoff. What most limits your ability to retrofit seems to be whether or not contractors will return your calls. They are looking for big-money projects.