Florida Roof Wind Zones

The 5th edition 2014 version separates building types by risk categories into three wind speed maps.

Florida roof wind zones.

Manufactured housing institute basic wind zone map. If you re thinking about buying a prefab home keep in mind that a home built to wind zone 1 cannot be placed by the manufacturer in zones 2 or 3 but a home built to wind zone 3 standards can be placed in lower wind zones. Hurricane roof bracing and strapping for wind mitigation in florida. Staples are prohibited in florida and texas.

Wind borne debris region where design speeds are greater than 120 mph or greater than 110 mph if within 1 mile of the coast. Wind speed maps are provided for each risk. The 3 tab 60 mph to 70 mph wind uplift rated roof covering shingles will be ripped off and leaks will be inevitable. Except the florida panhandle where the region lies within 1 mile of the coast.

Architectural grade shingles rated to withstand wind gusts up 130 mph are your best bet for high wind areas. The strength of three second wind gusts basic wind speed expected to recur on average every 700 years. With all that said if we were to rank the roofing materials from best to worst for coastal living it would go like this. Under the 5th edition 2014 florida building code the 5th edition 2014 florida building code goes into effect june 30 2015.

Section 1514 prescribes clear roof construction requirements for areas like south florida that are classified as high velocity hurricane zones. The primary changes are as follows. Previous versions of the florida building code represented all building types on a single wind speed map. Nails and straps are required by the florida building code.

Strength design level ultimate wind speeds replace the asd level wind speeds in the 2007 florida building code. Wind speed maps 2010 fbcb the wind speed maps in the 2010 fbcb have been revised significantly from the 2007 florida building code. Experts recommend a frieze board notched for the rafters. The provisions include specifications for materials slope requirements and even roofing.

Building for a wind zone. The florida building code uses these values in setting code for most. 6 2 2 1 wind zone 1 130 mph ultimate design wind speed v ult 140 mph. A frieze board is a board that bridges the gap between roof and wall and is attached to both.

High velocity hurricane zone of miami dade and broward counties.