Jed - that is the site that I have always used ever since it was recommended to us by Simpson Strong-Tie at a seminar 2 years ago. Here are the results that I have been referencing...
azcats - I am in the coastal area of Delaware, the maps for this area are pretty clear. I have also double checked with wind speed by zip code websites and get the same results: Vult = 123 mph and Vasd - 112 mph (I never interpolate between lines).
I just checked for the areas west and north...
Robert - I agree with the fact that the values in the 7-05 may be conservative. I could talk myself into a 10% difference but 30% seems pretty drastic. If I am doing a house on the ocean, I feel much better about the preivous MWFR of 25 psf instead of the new value of 17.5 psf (which is just...
The jurisdiction that I do most of my work in is preparing to make the switch to IBC 2012 as the governing code. I am in a coastal hurricane prone region with a Vasd = 120 mph. Using the IBC 2012 charts for Risk Category II the Vult = 130 mph. I understand the differences in the codes and...