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IDEAL Door has developed a unique WindCode® ID program to help you select the right door. It includes factors like local building code, MPH requirements and mean roof height.
The International Building Code includes
a wind speed map based on data compiled by the National Weather
Service (NWS). Wind speed is converted to design pressure and
measured in pounds per square foot (PSF) to develop a product
rating. On the table below exposure B is used in most situations
(urban, suburban, and wooded areas) and Exposure C is generally
used in open land with few obstructions or within 1500 feet
of the coastline.
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IDEAL Door windloaded garage doors are identified by “W” designations. IDEAL Door WindCode doors are currently available in loads from W to W9. The higher the “W” rating, the stronger the door. Still have questions? Check with your IDEAL Door Pro-Series dealer or retailer. They’ll be very familiar with codes in your area and will help make the selection of your IDEAL Door door simpler.
Notes:
1. Values are nomimal design 3-second
gust wind speeds in miles per hour (m/s) at 33 ft (10 m) above ground for
Exposure C category.
2. Linear interpolation between wind contours is permitted.
3. Islands and coastal areas outside the last contour shall use the last wind
speed contour of the coastal area.
4. Mountainous terrain, gorges, ocean promontories, and special wind regions
shall be examined for unusual wind conditions.
|
Location
|
V mph
|
(m/s)
|
| Hawaii |
105 |
(47) |
| Puerto Rico |
145 |
(65) |
| Guam |
170 |
(76) |
| Virgin Islands |
145 |
(65) |
| American Samoa |
125 |
(56) |
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Garage Door Selection
Guide
|
| FLORIDA BUILDING CODE (ASCE7) - (EXPOSURE B**) |
|
Mean Roof Height
|
90 MPH |
100 MPH |
110 MPH |
120 MPH |
130 MPH |
140 MPH |
150 MPH |
|
15' One-Story
|
W1 |
W2/W3 |
W3 |
W4 |
W5 |
W6 |
W7 |
|
25' Two Story
|
W1 |
W2/W3 |
W3 |
W4 |
W5 |
W6 |
W7 |
| FLORIDA
BUILDING CODE (ASCE7) - (EXPOSURE C***) |
|
Mean Roof Height
|
90 MPH |
100 MPH |
110 MPH |
120 MPH |
130 MPH |
140 MPH* |
146 MPH* |
150 MPH |
|
15' One-Story
|
W3/W4 |
W3/W4 |
W4 |
W5 |
W6 |
W7 |
W7 |
W8 |
|
25' Two Story
|
W4 |
W4 |
W5 |
W6 |
W7 |
W7 |
W8/W9 |
W8/W9 |
* Broward County, Florida is 140 MPH and Miami-Dade County, Florida is 146 MPH, Exposure C only.
** Exposure B is defined as urban and suburban areas, wooded areas, or other
terrain with numerous closely spaced obstructions. Exposure B is assumed unless
building site meets the definition of another exposure.
*** Exposure C is defined as open terrain with scattered obstructions including flat open ground, grasslands and shorelines in hurricane prone regions, and all of Miami-Dade and Broward County is Exposure C.
This grid is to be used as a guideline only. Contact your local building
official for code details and building permit information. The final authority
on building code interpretation is the “authority having jurisdiction” (AHJ).
The AHJ could be the state building official, county building official or city
building official in which a building resides. Building code changes are not
automatic but must be approved by the AHJ through an approved resolution or bill. |
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