Areas in which winds speeds reach 100 to 150 miles per hour, including the hurricane-prone regions of the East and Gulf Coasts, coastal Alaska, and the special wind region of the Columbia River Gorge in Washington and Oregon.

ICC 600

Approved by the Washington, D.C.- based American National Standards Institute, ICC 600 uses the latest engineering and scientific knowledge to improve the structural integrity and performance of homes. The standard replace SSTD 10-99, the ICC Standard for Hurricane Resistant Construction, which addressed prescriptive designs for wind speeds for only wood framed and masonry construction. ICC 600 includes prescriptive designs for wind speeds up to 150 mph with three-second gusts and included provisions for cold-formed steel framing in addition to the masonry and wood framed construction covered in the previous edition. The new standard also addresses exterior wall coverings and roof assemblies.