Flat roof solar panels can cost between £2,800 - £12,100 for the average 2 to 3 bedroom house. Flat roof solar panels cost less in terms of labour costs since installation is easier (however this depends on your roof). One downside of putting solar panels on a flat roof is that they take up more space per kW.
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?”.
In reality, flat roofs are just as viable and can bring many unique advantages, being easier to maintain and offering a simpler installation process. Let’s discuss the costs, benefits, and drawbacks of flat roof mounted 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.
In some cases,solar panels can become the actual roof. This is known as BIPV, building integrated solar panels. They improve sale-ability by reducing the building’s electricity costs. The financial benefits of solar installations in new builds are significant.
Not all roof types are suitable for solar panels. Solar panels work best when they can get as much direct sunlight as possible. In the UK, we are in the northern hemisphere. This means that the sun is above the equator and therefore your solar panels will be most effective if they are south facing.