Can Solar Panels Be Installed On A Garage Roof?

Yes. Solar panels can be installed on a garage roof.

Installing solar panels on a garage roof is a practical and often cost-effective option for home and business owners looking to harness renewable energy. Whether your garage has a flat roof, a pitched roof, or is constructed with metal, there are specialised installation techniques to ensure a secure and efficient setup.

This guide will provide detailed information on how to proceed with installing solar panels on your garage roof.

How Are Solar Panels Installed On a Garage Roof?

Successfully installing solar panels on your garage roof requires several key considerations. The process can be quite laborious, so let’s break down how a certified solar panel installer would go about the installation.

Assessing the roof’s structural integrity

Whether the solar system will be on a detached garage roof or a flat roof, the process always starts by calling a professional to have the garage roof’s structure assessed.

Installers will check the roof’s condition, orientation, and shading to determine its suitability for solar panels, as well as how many solar panels the roof can support. This means that they will also evaluate the roof’s structural strength (i.e. load-bearing capacity) to ensure it can support the weight of the panels, which are typically per panel from 18 kg to 20 kg.

Designing the mounting system

Once the roof assessment is complete, the next step is designing a mounting system tailored to the specific roof type. For flat roofs, installers might use angled mounts to optimise the panels’ exposure to sunlight. For pitched roofs, they will use racks and rails that align with the roof’s slope. This design phase is crucial to ensure maximum efficiency and safety of the solar array during installation.

Installation of the roof panels and mounts

Certified solar panel installation companies can then proceed with installing the mounts, which will be attached to the roof rafters to provide a sturdy base for the solar panels.

The spacing between mounts is important and it’s typically maintained at around 1.2 m apart to distribute the weight evenly and avoid any structural stress. That way, the garage roof can support the solar panel system without any issues.

Once the mounts are securely in place, the solar panels can be installed onto these mounts. Since the panels are positioned to capture the maximum amount of sunlight, this often means facing them southwards in the UK, especially if you don’t have a south-facing roof.

Electrical connections

The garage solar panels are connected to an inverter, which converts the solar energy from direct current (DC) to alternating current (AC) that can be used in the property.

If the garage has an existing electrical connection to the main property, the process is straightforward. If not, additional wiring may be required. By connecting the garage roof solar panels with your property’s power supply, installers ensure that the power generated is usable.

Final inspection and testing

The installers will then inspect the solar panels to ensure everything is correctly connected and functioning. This includes checking the electrical connections and the integrity of the mounts and panels.

They will also check if the solar panels generate electricity to effectively reduce your electricity bills and carbon footprint.

How Long Does It Take to Install Solar Panels On A Garage Roof?

The time required to install solar panels on garage roofs can vary based on several factors, including the complexity of the roof structure, the size of the solar panel system, and any preparatory work needed.

Typically, installing solar panels on a detached garage roof is relatively straightforward compared to more complex roof types. For most garage roofs, the process can be completed within one to three days.

Of course, some circumstances might cause delays, such as having to do detailed structural assessments or getting permits and approvals. 

How Much Does It Cost to Install Solar Panels On Garage Roof?

Typical garage roof solar panels cost around £2,100 for a three-panel solar system. For a six-panel system, the cost can go up to £4,200, but the prices include the panels, mounting hardware, and solar installation labour.

Factors that impact the garage roof cost include the size of the solar panel system, the type of roof, and any additional installation requirements. However, installing solar panels on garage roofs is generally a cost-effective option compared to more complex roof types.

It’s important to note that these are average costs, and actual expenses may vary based on the specific circumstances of your installation. We recommend getting in touch with trusted installers, like Eco Happy, to get a comprehensive quote beforehand.

Get A Solar Panel Installation Quote Today

Are you ready to leverage the benefits of solar power on your garage roof? Find out how much it will cost you by getting a quote from Eco Happy.

We offer customised solar panel solutions tailored to your specific needs. Our professional team also promises a smooth installation process, maintaining the integrity and look of your garage roof.

Start saving on your energy bills and make a positive impact on the environment. Contact us now to receive a free, no-obligation quote and join the growing number of property owners who have trusted us with their solar energy installations.

FAQs

What are the pros and cons of having garage roof solar panels?

Putting solar panels on your garage roof has many pros and a few cons.

Pros:

• Makes efficient use of the often unused garage roof space.
• Solar panels can significantly reduce your electricity bills by generating power from natural sunlight.
• Solar power is a renewable energy source that helps reduce your carbon footprint.
• Garage solar panels can increase the resale value of your property.

Cons:

• The upfront investment for solar panels can be high, though long-term savings often outweigh the initial expenses.
• Not all garage roofs are ideal for solar installations. Flat roofs with poor drainage or a lot of shading from nearby trees can reduce panel efficiency.
• Garage solar panels need to be regularly cleaned and maintained so they can continue to operate at their highest efficiency.

Is it worth placing solar panels on a garage roof that often pools with water?

Placing solar panels on a flat garage roof with water pooling issues can be problematic, but it still can be worth it. For instance, installing a drainage system can prevent the water from affecting the efficiency and lifespan of the solar panels.

But, if you frequently have standing water on your roof, it’s best to address this issue before installation.

Do you need planning permission for solar panels on a flat garage roof?

In most cases, you do not require planning permission for the installation of solar panels on a flat garage roof in the UK, provided that the installation meets certain conditions:

• The panels should not protrude more than 20 cm from the roof’s edge.
• The solar array should not exceed the highest point of the roof, excluding the chimney.
• The building is not a listed building or situated within a conservation area​.

To be on the safe side, check with your local planning authority to ensure compliance with any specific regulations in your area.

Our Verdict

So, can you put solar panels on a garage roof? Absolutely.

Installing solar panels on a garage roof is a practical and efficient way to harness solar power, provided it’s done by professionals who understand the unique requirements of garage structures.

Putting solar panels on your garage roof is a sustainable and cost-effective energy solution. Still, it requires careful planning and potentially additional costs if structural reinforcements or new wiring are needed. Once installed, the benefits of solar panels—such as energy savings and a reduced carbon footprint—make it a worthwhile investment.

Deciding to install solar panels on your garage roof is a smart move towards sustainable living.