BannerFlex Banner Bracket Hardware and Banners are Tested in Full Size Wind Tunnel

In order to ensure absolute quality, BannerFlex, in 1984, decided to contract with the GM Aeronautical Laboratory in Detroit. At this high tech laboratory facility data is collected and used to guarantee that BannerFlex’s banners and banner bracket hardware and other equipment is where it needs to be in strength and durability. Since we did our first test in 1984, we have done three more tests as technology has improved and new ideas have developed. We combine the data obtained from these tests with computer modeling and the data we acquire from strength testing that is done on our manufacturing site. This compiled data has made it possible for us to create our completely unique Wind Force Calculator Program that is available on our website.

Effective projected area (EPA) is one of the major data points obtained through these tests. The EPA is a value that is assigned to outdoor banners and equipment. The value is based on the pole and attached hardware or banner’s shape and surface area. A good thing to remember is that banners that are mounted using flexible arm brackets have an EPA value that gets smaller as wind velocity increases.

One thing we are asked about often if why we don’t have slits in our banners to help reduce win load. We have found through research that these slits are actually harmful to the banners because vibration is increased which puts an excess amount of stress on the fabric. These slits ripple and catch more wind which also puts added stress on the fiberglass arms and other equipment.

At BannerFlex, we know how important quality is when it comes to outdoor banners and hardware. To ensure our banners and equipment are the absolute best, we put them through rigorous testing. If you have any questions, do not hesitate to contact us today.