Understanding Polymeric Cladding Performance in High Wind Regions
Polymeric claddings are manufactured to perform under pressure from the elements, making them an ideal choice for coastal siding. Certified products can even withstand winds of at least 110 mph.
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+ 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 cladding, 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.