www.buildingenclosureonline.com/articles/86631-roofing-code-wind-resistance-of-non-ballasted-roofs

roofing codes — Figure 1609. Basic wind speed (3-second gust) based off of the Western Gulf of Mexico Hurricane Coastline. From the 2006 International Building Code.

Roofing Code: Wind-Resistance of Non-ballasted Roofs

Section 1504.3

March 7, 2017

Roof coverings installed on roofs in accordance with Section 1507 that are mechanically attached or adhered to the deck shall be designed to resist the design wind load pressures for components and cladding in accordance with Section 1609.

CODE INTERPRETATION

This section regarding wind-resistance of non-ballasted roofs has been refined in the 2009 Code, which includes the word ‘components’ and narrows requirements to be in accordance with Section 1609. Section 1609 is title “Wind Loads” and contains the wind design speed maps and other pertinent roof wind-uplift-resistance requirements.