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RECEI`'7.D PEAR 21 2017
Michael G Tomko,P.E.
T.R.Arnold and Associates,Inc
Phone: 574-264-0745
Fax: 574-264-0740
! Dec 7, 2016
Craig Young
Jacobsen Homes
Mr. Young,
Page SU-01-008 in the Jacobsen Homes' HUD set-up manual was based on the 2004
Florida Residential Code. Since Florida has adopted the 2014 Florida residential code,
the wind speed map has been changed to represent ultimate wind speed in ASCE7-10
instead of the design wind speed called out in the ASCE7-05 maps -
The wind pressures calculated from the wind speed map in ASCE7-10 are allowed to be
reduced by a factor of 1 2/3 if the structure is designed using Allowable Stress Design.
When using a wind design from ASCE7-05,the conversion to an ultimate wind speed is
as follows:
ASCE7-05 (2004 FBC)VASD: 120 mph exp B=ASCE7-10(2014 FBC)VuLT: 140 mph exp C
ASCE7-05(2004 FBC)VASD: 140 mph exp B=ASCE7-10(2014 FBC)VOLT: 164 mph exp C
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Sincerely,
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Michael G. Tomko