Made in the USA NOMMA
36 West Pennsylvania Avenue Walkersville, MD 21793

Custom Fabricated Louvers by Hercules Custom Iron, LLC.

What Goes into the Designs of Custom Louvers?

What Goes into the Designs of Custom Louvers?

Many do not understand what goes into the creation of custom louvers.

Without even noticing it, you have probably seen some kind of louver before, without knowing what they are. Custom louvers are defined by many different features, such as their flat strips, angled slats, and excellent protection, that are usually wrapped around commercial buildings. They are a type of fencing structure that still allows for airflow but prevents any moisture, dirt, or debris from getting inside. Whether utilized for aesthetic, security, privacy, or utility reasons, louvers have their benefits. However, many do not understand what goes into the creation of louvers. Read on to learn precisely how they work.

Preventing and Allowing Airflow with Custom Louvers

One aspect of your louvers that is often prioritized is airflow, and how it reacts to different factors and obstructions. This could include ductwork, filters, coils, or any other area of a building that could prevent airflow. Air is pushed through your louver at different velocities to determine what the overall resistance is. This is mostly dependent on the angle, and the shape of its blades, although it is essential to know in case you’re using louvers for a particular purpose, like surrounding an HVAC unit or a generator.

Water Resistance Custom Louvers

Tests can be done on your louvers to measure exactly how much water can go through a louver, depending on its use. Some louvers must be able to withstand the harsh weather conditions if their purpose is to protect a particular piece of equipment on a commercial property. This is compared with airflow and function to get a better picture of just how the custom louvers will function once they are installed.

Free Areas

As easy as a louver construction might seem, there is a lot of math backing up its design. For example, the free area uses the total open zones and divides it by the wall open zones. You also have to subtract any obstructions, like the frame or the blades. Usually, the free area uses about 35 to 60 percent of the wall opening, although the higher the percentage, the more air can pass through.

For any questions regarding louvers or other fencing and security structures, give Hercules a call today!


When you are ready for quality louvers, the professionals at Hercules Custom Louvers are ready to help. For more information and to learn how we can meet your custom louver needs, contact Hercules Custom Louvers online or giving us a call at 1-800-331-2590. We will ensure your investment serves your property for years to come! For updates and to see projects we’re working on, visit us on FacebookTwitterTwitterYouTube, and Pinterest.

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Hercules Louvers
36 West Pennsylvania Avenue Walkersville, MD 21793
Phone: 1.800.331.2590