Florida High Velocity Wind Zone Map

Different building requirements for high velocity hurricane zones.

Florida high velocity wind zone map. Those counties are calhoun dixie flagler nassau. In this area you must have hvhz approved products. A current wind map was not provided by the county please contact the local government building department for wind speed information. Other states contain similar codes sometimes with a different name check with your state building codes and or licensed contractor.

Wind borne debris region where design speeds are greater than 120 mph or greater than 110 mph if within 1 mile of the coast. High velocity hurricane zones the high velocity hurricane zones hvhz are specifically defined as miami dade and broward counties. Counties marked as map not available need to make changes to their wind maps. It is a special section of the florida building code 2017 fbc as of this writing which lays out special codes which apply to these counties many chapters of the florida code offer an hvhz and non hvhz section of the code.

Most but not all sections of the hvhz are more stringent than non. Wind maps by county. The high velocity hurricane zone or hvhz in florida encompasses only miami dade and broward counties. As in previous editions of the fbcb a single wind speed is used for the hvhz for each risk category map.

Except the florida panhandle where the region lies within 1 mile of the coast. The wind pressure required or design pressure dp is higher and the anchoring method. If you are in broward county miami dade county or the florida keys you are in the high velocity hurricane zone hvhz. As c e 7 98 wind zo h nes ur ica new ds winds 120 9 m p h winds 130 139 mph within 1 mile of coas tline wind zone 3 wind zone 1 wind zone 4 wi nd zo e 2 winds above 140 mph winds 110 119 mph source.

Astm e 1996 03 page 3 6 2 2 high velocity hurricane zone hvhz. If you live in florida in miami dade broward counties or coastal palm beach county you are in an hvhz. The design wind speeds in the hvhz are as follows. Protection from wind borne debris in.

You may have researched this prior to purchasing your home but the best way to know if you live in a high velocity hurricane zone is by seeing where your home sits in a wind map shown below. Hvhz stands for high velocity hurricane zones and is part of the florida building code. R4402 1 2 1 all roofing components roofing systems. High velocity hurricane zone of miami dade and broward counties.

All wind maps are in pdf format. For example the american society of civil engineers standard asce 7 minimum design loads for buildings and other structures is widely used to determine the wind loads on buildings. How to know if you live in a high velocity hurricane zone.