Will the installation of tilt mounts impact the warranty of my solar panels?

The installation of tilt mounts for solar panels generally does not affect the warranty of the panels themselves. However, the method of attaching these mounts to your roof can impact the roof's warranty. In the UK, solar panels are often installed using roof penetrations or non-penetrating methods like ballasted systems. Tilt mounts usually require some form of attachment to the roof.

Understanding the Types of Mounting Systems

Penetrating vs. Non-Penetrating Mounts

• Penetrating Mounts: These systems involve drilling into the roof to secure the mounts. While effective, they can void roof warranties if not properly installed or if the roof is not designed for penetrations.

• Non-Penetrating Mounts: Ballasted systems are common for flat roofs, as they use weights to secure the panels without drilling into the roof. This method typically preserves the roof's warranty.

Impact on Solar Panel Warranties

The warranty on your solar panels primarily covers defects in materials and craftsmanship, performance guarantees, and sometimes the power output over time. Tilt mounts themselves do not generally affect these warranties unless they cause physical damage to the panels, which would typically be covered under a separate installation or workmanship warranty.

Practical Advice for UK Homeowners and Small Businesses

Key Considerations

• Check Roof Conditions: Ensure your roof is suitable for solar installations, especially if using penetrating mounts.
• Warranty Review: Review both your solar panel and roof warranties to understand how installations might affect them.
• Professional Installation: Use a reputable installer to minimize risks and ensure compliance with UK building standards.
• Maintenance: Regular maintenance can help prevent issues that might not be covered under warranties.

Pros and Cons of Tilt Mounts

Pros:

• Efficiency: Tilt mounts can improve solar panel efficiency by optimizing the angle for sunlight absorption.
• Aesthetics: They can reduce visual impact by allowing panels to be mounted at angles that are less noticeable.

Cons:

• Cost: Tilt mounts may add to the overall installation cost compared to fixed mounts.
• Complexity: They may require more complex installations, potentially increasing labor costs.

Common Mistakes to Avoid

• Inadequate Roof Assessment: Failing to check the roof's condition before installation can lead to structural issues or warranty voidance.
• Incorrect Mounting: Incorrectly securing the mounts can cause damage to the roof or affect performance.
• Insufficient Warranty Review: Not fully understanding the impact on warranties can lead to unexpected costs or disputes.