Are Pre-engineered Steel Buildings Suitable for Solar Panels?
The advent of clamp-style mounting systems have helped make the use of solar panels on pre-engineered steel buildings more prevalent.
As the cost of solar panels continues to drop, and the technology behind these energy-capturing devices advances, people are wondering whether placing them on pre-engineered steel buildings is a good idea. The answer to this question isn’t a straightforward one, but it’s worth exploring.
Your reasons for wanting to install rooftop solar panels could vary greatly:
- Save money on your electricity bill
- Take advantage of an underutilized energy resource (i.e. the sun)
- Protect the environment by lessening your dependence on fossil fuels
- Establish your company as a technology leader
They’re all valid motives, but the thing businesses want to know is whether it’s worth it? Again, the answer hinges on several factors.
Metal Roof Type
One of the first questions you’ll likely ask is: “Do I have to drill holes in my metal roof to mount solar panels?” It’s a valid point. The thought of intentionally putting holes in a perfectly good roof is enough to send shivers down your spine. The risk of leaks isn’t something to be taken lightly.
Fortunately, in many situations, the answer is “No.”
Many metal buildings—including pre-engineered steel buildings and structural steel buildings—feature standing-seam roof systems. Installation companies are using special clamp-style mounting systems that match this roof type. As a result, you can attach the panels without roof penetrations.
Roof Age
One of the key selling points of pre-engineered buildings is their longevity. With proper care, they can last for half a century, or longer. This includes the roof.
Solar panels, meanwhile, are typically warrantied for up to 25 years. Therefore, if your metal roof is in good condition, it should accommodate a solar panel system throughout its useful life expectancy.
However, if your metal roof is nearing the end of its life, you might want to consider holding off on a solar panel installation.
To learn how you can help extend the life of pre-engineered steel buildings, read: 5 Pre-engineered Steel Building Maintenance Tips.
Location
It might seem obvious, but in order for solar panels to operate at optimal efficiency, they need maximum sun exposure. That means:
- Placing them in a south-facing position
- Orienting them so they face the sun at the best possible angle
- Making sure they’re clear of obstructions (i.e. foliage, other buildings)
Of course, the other location consideration is geography. The further north you go, the more oblique (i.e. less intense) the angle of the sun becomes. This hinders the light-capturing efficiency of solar panels.
Roof Coatings
Many modern metal buildings feature roofing systems that have special coatings that reflect light to keep the building cooler. While this certainly isn’t a prerequisite for solar panels, this cooling effect helps increase performance of the photovoltaic solar cells.
To learn about the latest trends and innovations in pre-engineered steel buildings, call Metal Structure Concepts. Our expert design team will help you incorporate the features you need so you can operate at maximum efficiency.