Can you put solar panels on a flat roof?

One downside of putting solar panels on a flat roof is that they take up more space per kW. When considering what type of roof is ideal for solar panels, many often consider pitched roofs as the only option. Homeowners also often ask “Can you have solar panels on a flat roof?”.

How much does a solar panel weigh on a flat roof?

As mentioned earlier, solar panels on a flat roof need a heavy ballasted mounting system to stay secure in high winds. And that ballast can make a solar panel up to five times heavier than a typical non-ballasted panel. A ballasted solar panel can weigh around 100kg, whereas a non-ballasted solar panel is only about 20kg.

Can a flat roof solar system be installed on a domestic property?

Whilst flat roof solar systems are more commonly used on commercial buildings, they can certainly be fitted onto domestic properties too. Read on to find out more about flat roof solar, and how in many cases it is actually better than normal on-roof solar! How do Solar Panel Systems on a Flat Roof Work?

What angle should solar panels be installed on a flat roof?

With flat roofs, the installer has to set the pitch of the solar panels (typically between 30° to 50°, while the best orientation for solar panels in the UK is southward). This can be beneficial as it allows for optimal angling and positioning for your region.

Are flat roof solar panels better than tilted solar panels?

Dirt Accumulation: Researchers found that flat roof solar panels are more likely to have dirt build up. Dust and droppings from birds can build up and cause severe losses in energy output if not properly maintained and cleaned. Space Issues: Flat roof solar panels need more space than those on tilted roofs.

Can a flat roof damage a solar panel system?

Flat roofs can quickly accumulate standing water, damaging your solar panel system. You’ll need proper drainage to prevent water from pooling around the solar panels. You’ll also need a tilted mounting system to allow the rain to fall away from the surface of the solar panels instead of collecting on the flat surface.