Understanding Polymeric Exteriors’ Performance in High Wind Regions

Today’s product packaging makes it easy to identify the right products for high wind areas.

Defining the Design Pressure Rating

The Standard Wind Load Design Pressure Rating measures the wind load resistance of cladding, windows, doors and other wind load-bearing products. The rating indicates each product’s ability to withstand pounds per square feet (psf) of pressure from wind load in its designed use.

For example, in Florida, design pressure requirements can vary from 30 psf in the state’s center up to 60+psf on the coast, depending on the building’s height and other factors.

Wind speed is a standard measurement, but in reality, it’s an approximation of product performance based on an average home in an average location under average installation methods.

The specified design pressure rating for cladding is calculated based on many factors beyond wind speed, including building height, building orientation, local geography and more.

When choosing the right polymeric exteriors, refer to the Standard Wind Load Design Pressure Rating, a more accurate predictor of a product’s performance in varied conditions.

To ensure full-strength performance in extreme conditions, proper installation is vitally important. Find installation tips for coastal regions and more on page 21 of the Building Code Reference Guide.