Metal Buildings
Wind loads, snow loads, and engineering certifications are not just technical jargon — they determine whether your building survives severe weather. Here is what you need to know.
Why Load Ratings Matter Every county and municipality in the United States has specific requirements for how much wind pressure and snow weight a building must be able to withstand. These requirements are based on local weather history, geographic factors, and building codes. A metal building that is not engineered for your area's load requirements may fail in severe weather — and may not be approved for a building permit. Wind Load Ratings Explained Wind load is measured in miles per hour (mph) and represents the maximum sustained wind speed a building is designed to withstand. The most common ratings are: 105 mph: Standard for most inland areas with moderate wind exposure 130 mph: Required in many coastal areas and hurricane-prone regions 150 mph: Required in high-risk hurricane zones (South Florida, Gulf Coast) 170+ mph: Required in the most extreme wind zones Your specific wind load requirement depends on your county, your building's size and height, and its exposure category (how open or sheltered the site is). Snow Load Ratings Explained Snow load is measured in pounds per square foot (psf) and represents the weight of accumulated snow a roof can safely support. Common…