A ballast structure for solar panels is a mounting thing that uses weight to hold the system down instead of drilling into the roof. It's a popular choice for flat roofs where you don't want to make holes. Instead of using screws, it uses heavy blocks, often made of concrete, to keep the solar panels from blowing away or getting damaged. Companies like SIC Solar make these types of systems for businesses and homes.

These systems are made to spread the weight evenly across the roof. This keeps the roof from leaking and makes sure the building stays structurally sound. Because the system just sits on the roof, it's usually quicker to install and you don't need as many special tools. Plus, you don't have to worry about leaks since you're not drilling any holes.

One of the best things about this mounting is that it's easy to work with. Installers can move the blocks around to make sure it's stable enough for the wind in that area. You can also change the angle of the panels to get the most sunlight without changing the roof. A lot of new systems use light aluminum frames with concrete weights in certain spots. This makes it easy to install but still strong enough to withstand wind.

But, you should check if your roof can handle the extra weight before you install one of these systems. Some roofs, especially older ones, might not be strong enough. You also need to think about how windy it is, how high the roof is, and the weather in your area. These things will determine how much weight you need to keep the system stable.

These structures are often used on business rooftops, warehouses, and factories where there's a lot of flat space. Because they're made of separate parts, it's easier to fix them or move them later compared to systems that are bolted down. Companies like SIC Solar make these kinds of systems to meet safety standards and be easy to install.

Since more people want mounting that doesn't require drilling, ballast structures are still a good option for solar panels on flat roofs.