Flat Roof Solar Panels

Can You Put Solar Panels On A Flat Roof?

Solar Panel and Battery
Installation
For Flat Roofs

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Get a quote for solar flat roof systems. We can supply, fit and install on many different types of flat roof, whether it’s a slate, concrete, or other type of material.

High-quality Flat Roof Solar Systems

A flat roof solar system is a photovoltaic (PV) installation specifically designed for buildings with flat or nearly flat roof structures. This type of solar system or solar panel array is a popular choice for commercial and industrial buildings, as well as some residential properties.

  • Bespoke design

  • Expert installation

  • Planning advice

  • High-performance panels

  • Battery compatible

flat roof solar panels

Why Install A System At Your Home?

Flat roof panels come with several advantages. Firstly, their horizontal orientation allows for easy installation and maintenance. They can be mounted at the optimal angle for capturing sunlight, maximizing energy production. Additionally, flat roofs often have ample space, making them ideal for accommodating a solar PV system that can significantly reduce your energy bills and reliance on non-renewable power sources.

Installing solar on a flat roof is a straightforward process. They are typically mounted on frames designed to achieve the desired tilt for optimum sun exposure. Ballast or weights are used to secure the system in place, ensuring stability in various weather conditions. The setup is designed to be non-penetrative, preserving the integrity of your flat roof.

Can You Put Solar Panels on a Flat Roof?

Yes, you can put solar panels on a flat roof. Flat roof solar panel installation fixes panels to a structure using mounts or weighted ballasts.

Fixing the panels to the structure involves fitting ballast frames and heavy slabs to the roof. This ensures that winds do not affect it and it stays safely in place.

There are a few best practices to follow to ensure you’re getting the most out of your panels.

This includes: 

  • Installing them using mounts at an angle to ensure they receive the maximum amount of sunlight. (The ideal angle for flat roof solar is 30 degrees.)

  • Weighing them down with ballasts or fixing them to ensure they are wind-proof. This involves fitting ballast frames and heavy slabs to the roof.

  • Ensuring your flat roof is strong enough to support the weight of the solar panel mounting

Why install panels on a flat roof?

Flat rooftops, garages, or even flat conservatories are excellent platforms for solar panel installation or solar thermal systems. If you don't have enough space on your angled roof, or maybe you don't have an angled roof at all, opt for space on your flat roof. The roof structure remains unaffected.

  • Solar PV on flat roofs are easier to access for installation and maintenance

  • Putting your solar in your garage means you don’t have to have them on your main house if you aren’t a fan of the look

Can you put solar systems on a flat garage?

Yes you can put solar on a flat garage roof. Check the structure of the roof first to ensure it can safely hold the weight.

Get free quotes for your roofing system.

flat roof solar panels

How are panels attached to a flat roof?

When it comes to attaching solar to a flat roof, there are two main ways used in the UK:

1. Ballasted Racking Systems:

Ballasted racking systems are a popular choice for flat roofs. They involve placing heavy concrete blocks, sand bags, or metal weights to hold the system safely in place. The weight distribution prevents panels from shifting while also providing stability against high winds.

This method is non-intrusive. It does not require drilling into the roof, making it a popular way to install solar.

2. Mounting Systems:

Mounting systems designed for flat roofs. These systems typically use adjustable frames made of aluminium or stainless steel.

The frames attach to the roof using ballast, anchors, or screws. Adjustable frames allow for optimal panel angles, maximizing sunlight absorption and energy generation.

Planning Permission For Flat Roofs

Do you need planning permission to add solar PV to flat roofs?

Like slanted roofs, you won’t need planning permission as solar PV comes under the remit of ‘permitted development.’

One exception however may be that you might need planning permission if you own a listed building. Check with your local council if you have a heritage building or if you live in a conservation area.

Pros and Cons 

Pros of Installing Panels on a Flat Roof:

1. Easy Accessibility: Flat roofs offer easy access for installation, maintenance, and cleaning. Without the need to climb steep slopes or deal with pitched angles, it becomes safer and more convenient to perform routine tasks.

2. Optimal Sunlight Exposure: Flat roofs have the advantage of providing unobstructed sunlight exposure throughout the day. With proper panel orientation, they can capture sunlight from various angles, maximizing energy generation potential.

3. Space Efficiency: Flat roofs typically have more available space compared to pitched roofs. This allows for the installation of a larger number of panels.

Cons of Installing Solar Panels on a Flat Roof:

1. Structural Considerations: One important factor to consider is the load-bearing capacity of the roof. Solar PV mounting systems, and associated equipment can add significant weight to the roof.

2. Maintenance Challenges: While flat roofs offer accessibility advantages, they can also present maintenance challenges. Debris, such as leaves or dirt, may accumulate more easily on a flat surface, potentially affecting the panel's performance. Regular cleaning and maintenance are essential to ensure optimal energy generation.

3. Potential for Shading: Depending on the surroundings, flat roofs may be more prone to shading from neighbouring buildings, trees, or other obstructions. Shading can significantly impact solar panel efficiency and reduce overall energy production. Careful site assessment and panel placement are crucial to minimize shading effects.

It is important to note that the pros and cons mentioned above are general considerations.

Each installation is unique, and it is recommended to consult with a professional solar installer.

Is your roof suitable for solar energy?

Before installing solar energy systems on a flat roof, it's important to check your roof is suitable. Here are some of our top elements to check:

1. Roof Load Capacity:

Ensure that your flat roof has the load capacity. It needs support the additional weight of solar systems, especially if using ballasted racking systems. Consulting a structural engineer or a professional solar installer can help determine the roof's load-bearing capacity.

2. Orientation and Shading:

Flat roofs provide the flexibility to orient panels in the most optimal direction for maximum sunlight exposure. Minimise shading from nearby buildings, trees, or obstructions ensure optimal energy generation.

3. Maintenance and Accessibility:

Consider the ease of access for maintenance and cleaning purposes. Flat roofs generally offer better accessibility, allowing for easier panel inspection, cleaning, and potential repairs.

Solar systems on flat roofs are a viable option for harnessing solar energy in the UK.

The methods mentioned above help attach a system to the roof securely without damaging it.

Take into account considerations such as roof load capacity, orientation, and accessibility. Then can make an informed decision about installing panels on your flat roof.

Can you put solar panels on a garage roof?

Garage solar panels are an option for those who can't use their roof.

flat roof solar panels

The Ultimate Guide ☀️


Flat roof panels have become an increasingly popular choice for harnessing renewable energy from the sun.

They offer a versatile and efficient way to install a solar panel system, whether it's for your home or business.

In this guide, we'll explore the benefits, how to mount panels on flat roofs, and whether you need planning permission for flat roof installations.

Easily Reduce Your Electricity Bills

One of the most attractive aspects of flat or garage roof PV is that, in many cases, they do not require planning permission. As long as your installation adheres to certain guidelines, such as staying within height restrictions and not extending beyond the perimeter of your roof, you can often proceed with your renewable energy project without the need for additional approvals.

Choosing flat roof solar panels for your property is a forward-thinking investment in renewable energy. Not only will you reduce your carbon footprint, but you'll also enjoy long-term savings on your energy bills. The energy generated by your solar panel system will power your home or business while contributing to a cleaner and more sustainable future.

Enhancing Energy Efficiency with Flat Roof Solar Panels

When it comes to renewable energy, flat roof solar panels are an exceptional choice, offering versatility and efficiency that extends beyond traditional sloping roofs.

These systems are specifically designed to make the most of the available space on flat roofs, providing an excellent opportunity to embrace solar power and reduce your reliance on conventional energy sources.

Whether for residential or commercial use, a well-planned flat roof solar system can significantly contribute to a greener and more sustainable future.

Flat roof solar panel installer near me

CRG Direct Solar installs flat roof solar panels across the South Coast of England. We cover Brighton, Southampton, Portsmouth, Guildford, Fareham, and more.

In conclusion, flat roof solar panels are an excellent choice for those looking to embrace renewable energy.

Contact us today to learn more about the possibilities of solar energy and reducing your energy bills.

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Dave Wood

We had a great experience with CRG…

“We had a great experience with CRG installing our solar and battery. Pre-install I had quite a few questions and they were always answered quickly and in an easy to understand way. During the installation the team discovered that it wasn’t going to be as straightforward as they initially thought due to the strange layout of our house and the location of the electrical fuse box etc but they did a great job of working out a route for the cabling that caused the least disruption. Since the install I’ve had another couple of questions about configuring the system and again, I got a quick and helpful response.”

Joyce Scott

A pleasure to deal with.

“From the initial survey till completion of the installation I have been most impressed. There was no hard sell, everything was explained clearly. Once I had accepted the lead date was just a matter of weeks. The actual installation was completed very efficiently. The backup support is second to none. l can't recommend Frank, Melissa and the team more highly for the whole experience.”

Paul Wickenden

Very impressed

“Frank came out to measure and quote. He was professionally and quick with his quote. We did not feel rushed or pressured into purchasing at all.
Timescales were accurate and their communication was speedy and sincere.
Installation was brilliant. You could tell the installers knew exactly what they were doing.
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