There are four basic ways to make equipment screens for commercial roofs. Each method has its strengths and weaknesses. Some methods have serious flaws that can haunt you for many years. Please choose the roof screening systems based on its strengths. However, due diligence is required from your side. We have listed some of the most common methods, along with objective information and comments about each.

#1 Structural Steel

This method is the most popular for large commercial buildings. This equipment screen is usually included in the scope of a structural steel contractor and is erected during original construction. These systems are often integrated into the structure and will extend below the roofline to connect to structural features such as columns or wide flange beams. In retrofit situations, a structural steel screen is not often used.

Structural steel equipment screens have the greatest advantage: they are extremely strong. The strength of structural steel equipment screens is that they can be welded to the structure beneath the roofline, allowing it to grow very high without needing to brace back from the roof. The screen’s strength and rigidity ensure that it doesn’t warp, sag or shift over time.

#2 Steel Studs

Steel studs can be used to build anything. Steel studs are used to construct entire buildings. But, this method of building equipment screens can be challenging. Retrofit projects often include steel stud-framed roof screens. They are usually installed by a variety of subcontractors, including roofers, carpenters, and sheet metal contractors. Problem is, the system isn’t “owned” by anyone. If it isn’t designed and documented exceptionally well by an architect, it will not get done right.

Galvanized steel studs can withstand the elements. Because they can be field-cut and screwed together, they are easy to install. Field-welded systems can cause fires and burn holes in roof membranes. This eliminates any risk. They are made of steel and won’t sag or warp over time, provided that the members are properly designed and engineered and not overstressed.

#3 Unit Mounted Screens

Screens for unit-mounted equipment attach directly to roof equipment such as shrouds. These screens are made of light gauge sheet metal and aluminium strut members. They attach directly to the equipment’s side and cantilever out to support the face panel.

These systems are simple to install and easy to use. They are a good choice when you have a single unit or several units spread out far apart. They attach directly to rooftop units and do not require roof penetrations. This saves roofing costs and allows for analysis of roof structural members’ point loads. These systems will be accepted by most municipalities as being compatible with requirements for rooftop unit screening.

#4 Wooden Roof Screens

A screen for equipment should never be made with wood. It won’t withstand the weather elements like rain, wind and sun. However, wood is easily available and contractors are well-versed in it so many roof screens have been constructed this way over time, especially in dry and mild climates such as the Southwest and West.

Wood is easy to find and work with. However, it should not be used for this purpose. In certain situations, however, wood might be an option for a roof screen’s face. The screen must conform to the surrounding architecture in some areas. The same material might be required for the equipment screen if it is stained wood siding. It can create a beautiful architectural look if it is done right and maintained well.