Installing solar panels on a concrete roof is not only possible in the UK, it’s increasingly common. As the demand for renewable energy solutions continues to rise, concrete roofs are proving to be a durable and versatile base for solar PV systems.
Whether you’re a homeowner, landlord, or commercial property owner, understanding the feasibility, benefits, and considerations involved in installing solar panels on a concrete roof can help you make a smart, future-proof investment.
Can Solar Panels Be Installed Directly Onto A Concrete Roof?
Yes, solar panels can be installed on a concrete roof and they often make for an ideal surface.
The strength and stability of concrete mean it can support the weight of a solar array without requiring significant structural reinforcements, unlike lightweight materials such as polycarbonate or bitumen felt.
Depending on the type of concrete roof (flat or pitched), solar installers will use either:
- Ballasted mounting systems – common for flat roofs where panels are not drilled but weighed down with concrete blocks. Read our guide to learn more on how solar panels are installed on flat roofs.
- Penetrative mounting systems – used when the roof structure permits anchoring into the concrete itself.
Modern solar systems use aluminium racking and tilted mounts to achieve the optimal angle for maximum sun exposure in the UK, usually between 30°–40°.
Depending on roof shape and layout, panels can also be installed in horizontal or vertical orientations, with each configuration offering unique benefits based on space and shading.
Compared to other roofing materials like rubber or fibreglass, concrete offers superior load-bearing capacity and greater mounting flexibility. While it’s possible to install solar panels on rubber roofs or on fibreglass roofs, those surfaces often require more specialised mounting considerations and may not support heavier systems without reinforcement.
Important: It’s essential to conduct a structural survey before installation to assess roof load capacity and identify any necessary waterproofing work.
Additionally, knowing how many solar panels you can fit on your roof can help with planning the system size and projected returns.
What Are The Benefits Of Installing Solar Panels On A Concrete Roof?
Concrete roofs offer several unique advantages for solar panel installation:
Exceptional Structural Integrity
Concrete can support heavier systems and battery storage units, making it ideal for large residential or commercial installations.
Optimal Panel Orientation
Flat concrete roofs allow for flexible array positioning, helping you maximise sun exposure throughout the day. This also allows for better winter performance when systems are angled appropriately. Even in colder UK months, solar panels still generate electricity.
Minimal Maintenance
Solar PV systems installed on concrete are easy to clean and service due to stable, accessible flat roofing.
Long-Term Energy Savings
With rising UK energy costs, solar panels can significantly lower outgoings, especially when paired with solar battery storage, and when you consider the average monthly electricity bill savings with solar panels across the country.
Stat: According to the Energy Saving Trust, UK households with solar panels can save up to £600 annually on electricity bills.
If you’re considering adding a battery to your system, here’s what to know about whether solar batteries are worth it.
Additionally, knowing what size solar battery you need is critical to ensuring your energy needs are met.
Expert Tip: Many homeowners find that the best time to install solar panels in the UK is during spring or summer months when weather conditions allow for faster installation and immediate energy generation benefits.
Are Government Grants Available For Solar Panel Installation On Concrete Roofs?
Yes, several UK government incentives can help offset the cost of solar panel installation, even on concrete roofs:
1. 0% VAT on Solar Panels
As of 2022, homeowners pay 0% VAT on energy-saving materials, including solar PV systems. This measure is in effect until at least 2027.
2. Smart Export Guarantee (SEG)
Earn money for the unused electricity your solar panels send back to the grid through the Smart Export Guarantee (SEG). Licensed suppliers pay rates between 1p and 15p per kWh (Ofgem).
3. ECO4 Scheme
Low-income households may qualify for full or partial funding through the Energy Company Obligation (ECO4) scheme. Grants can be used for insulation, solar panels, and heating upgrades.
Curious how fast you’ll see a return? Read our article on how long solar panels take to pay for themselves.
What Installation Challenges Should You Be Aware Of?
While concrete roofs are ideal in many ways, certain challenges need consideration:
Weight and Load Distribution
Concrete is strong, but installers must calculate load points to avoid stress fractures over time. This is particularly important for ballasted systems.
Waterproofing
Drilling into concrete may compromise waterproof membranes. Installers must ensure full resealing to prevent leaks.
Wind Resistance
Flat roofs are more exposed to high winds. Installers often use aerodynamic mounts or wind deflectors to stabilise the array.
These challenges highlight the importance of hiring a trusted and experienced professional. Knowing how to choose the right solar panel installer can make all the difference in ensuring your system is safe, efficient, and long-lasting.
How Do Commercial Solar Installations Differ On Concrete Roofs?
Commercial buildings with large concrete roofs are perfectly suited for high-capacity solar PV systems. These systems:
- Use modular arrays to scale energy generation.
- Integrate with battery storage and EV charging systems.
- Can generate thousands of pounds in annual energy savings and SEG payments.
Stat: A 50 kWp commercial solar PV system can save over £10,000 per year in electricity costs.
Are commercial solar panels worth it in the UK? Yes, they are!
What Type of Solar Panels Work Best on Concrete Roofs?
There are three main types suitable for concrete installations:
- Monocrystalline panels – most efficient and space-saving.
- Polycrystalline panels – slightly less efficient but more affordable.
- Thin-film panels – lightweight, flexible, and best for low-load bearing areas.
Flat concrete roofs especially benefit from monocrystalline panels on tilted racking for better energy capture and lower payback periods.
Tip: Depending on your system size and daily generation, you can power a wide range of everyday household items. Here’s a breakdown of what appliances solar panels can power to help visualise the impact.
Frequently Asked Questions (FAQs)
In most cases, planning permission is not required if the panels meet permitted development rights. Exceptions include listed buildings and conservation areas. Check your local council’s policy here.
Most solar panels come with a 25-year performance warranty, and concrete roofs can easily outlast this with proper maintenance.
Absolutely. The structural strength of concrete allows for easy integration of solar battery systems like the Tesla Powerwall or GivEnergy storage.
Expect to pay £5,000–£7,000 for a typical 3.5kW system. Costs can vary depending on your roof type, system size, and battery storage options.
Not necessarily. Installers use adjustable mounting brackets to tilt panels toward the sun, improving performance on flat roofs. In some cases, the flexibility of orientation actually increases efficiency.
Our Verdict
Concrete roofs provide a structurally sound and adaptable platform for solar panel installations, whether you’re retrofitting a home in Newcastle or equipping a commercial property elsewhere in the North East.
With the right system design, professional installation, and access to UK government incentives, solar on concrete is a financially and environmentally smart choice.
Not sure if your property qualifies? Read our guide to find out if your roof is suitable for solar panels.
If you’re considering solar panels for your property and want expert advice tailored to your roof type, energy goals, and location—now is the time to act.
Myles Robinson is a seasoned expert in the boiler and home improvement industry, with over a decade of experience. He is deeply committed to environmental sustainability, actively promoting energy-efficient heating solutions to help households reduce their carbon footprint. By combining industry expertise with a dedication to environmental responsibility, Myles continues to lead efforts in transforming home heating practices towards a more sustainable future.
