With the growing popularity of renewable energy, solar panel installation for homes has become quite common. But can you install solar panels on metal roof? How much will it cost? Let’s find out!
Can You Install Solar Panels on Metal Roof?
Yes, you can install. A typical metal roof comprises a seam which is ideal for the installation of solar panels without drilling. Panels can be mounted with the help of clamps, resulting in the longevity of the roof.
Can Solar Panels Be Installed on A Corrugated Metal Roof?
Yes, they can be installed. For installing solar panels on corrugated metal roof, a traditional drilling method with penetrative mounts is used.
Ways to Install PV Panels on Metal Roof
Different types of metal roofs require different solar mounting systems which are in accordance with their structure and capacity.
1. Standing Seam Metal Roof: They use clamp-mounted solar panel systems for easy, labor-saving, and non-penetrating installation, preventing water seepage.
2. Corrugated Metal Roof: It requires special brackets which are attached to the top crest of the corrugation so that the lower-lying drainage areas are free from holes. Some of them come with rubber gasket seals on the base so that you don’t need to apply messy sealant on your roof.
3. Trapezoidal Metal Roof: These roofs have more flat areas between the peaks and the height of each ridge may vary. This is why the brackets to these roofs vary in shape. Every bracket should fit tightly over each trapezoidal ridge, ensuring that the drill hole is positioned above the roof’s base level.
Also See: How to Install Flexible Solar Panels on Tesla
Solar Metal Roofing Pros and Cons?
Now let us explore the benefits and drawbacks of this installation method.
Advantages of Solar Panels on a Metal Roof
| Durability | Metal roofs are long-lasting, highly durable, and have a long lifespan. |
| Strength | Offers strong and stable base |
| Maintenance | Metal roofs require less maintenance, withstand harsh weather, are resistant to fire, and pest. |
| Sunlight Reflection | Highly reflecting surface leads to reduced house temperature, further lowering energy consumption. |
| Installation | Easy to install with ease to drill and less possibility of cracks and breakages. |
Cross-Reference: Why metal roofing installation is perfect for solar panels?
Disadvantages of Solar Panels on a Metal Roof
| Compatibility | Not all metal roofs are compatible, and others may not support solar panels’ weight. |
| Price | Expensive as they are long-lasting and highly durable. |
| Clamps | They are designed to contract and expand with weather, which reduces clamp’s longevity. |
| Noisy | During rain or hailstorms metal roofs are very noisy. |
| Erosion | Without regular and proper care, metal roofs begin to erode, resulting in maintenance expenses. |
You can also take a look at the 13 Common Problems With Solar Panels On Roofs.
What is the Cost of Installing Panels on Metal Roof?
As of 2023, the average cost of a 6-kilowatt home solar system falls within the range of $16,000 to $21,000. This equates to an estimated cost of $2,667 to $3,500 per kilowatt of capacity.
Installing solar panels is easier with a standing seam metal roof. It might slightly lower labor costs, but the overall impact on project costs is minimal. According to data from the National Renewable Energy Laboratory, labor makes up less than 10% of the cost of a standard home solar system.
Cross-Reference: Cost of Installing Solar Panels on a Metal Roof
Does the Installation of Solar Panels Affect Metal Roof Warranties?
Yes, traditional solar installations using penetrating mounts can potentially void the roof warranty. With non-penetrating clamps or adhesive thin-film panels, you can usually maintain the warranty.
Note: Before installing PV modules, it is advisable to talk to your roofing provider and inquire about any exceptions that may apply in such situations.
Metal roofs provide one of the best options for installing solar panels. However, different types require attention to specific techniques to minimize roof damage. Hence, you must go through the pros and cons of installing solar panels on metal roofs and consider their cost factors before making a purchase decision.
Additionally, check out how to Install Solar Panels on Car Roof
