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RE: Wind damaged residences in Kansas

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This is not quite correct. I think that there is more awareness on the west
coast, but thee is also more recognized damage by the Insurance industry due
to poor construction quality.
My point was that the strictest enforcement of codes seem to come from major
metropolitan areas and the quality of enforcement reduces the farther you
move away from a major city.
Seismic Zone also has a lot to do with it. Engineers design in Zones 3 and 4
more often than they are required to do in Zone 0,1,or 2. This is because
little historic damage had occurred in high wind areas until recently. This
may be due to the nature of the business and the need to increase profit
lines by reducing the cost of hardware and labor.

It will be interesting to see what the CUREE-CALTECH study shows and the
recommendations they make.

Dennis Wish PE

-----Original Message-----
From: RDAHLMANN(--nospam--at) [mailto:RDAHLMANN(--nospam--at)]
Sent: Saturday, November 14, 1998 12:32 AM
To: seaint(--nospam--at)
Subject: Re: Wind damaged residences in Kansas

I agree with the responces which say that the west coast seems to be
adequately designing residential construction and contractors seem to do a
decent job of following the plans. The problem seems to be that the further
East you go, the looser the code wording and the enforcement. I have seen
jobs from east coast engineers with 1/10 the detailing we do out here.

This concerns me especially since I have heard that the 2000 code uses BOCA
a guide. No offence to BOCA, but this is a step backwards, especially in
regards to seismic design.

Richard Dahlmann, P.E.