Discovering a leak under your solar panels can be alarming. Many homeowners find themselves facing this issue, unsure of where to turn or what steps to take next. One important thing to remember is that well-installed solar panels should not cause roof leaks; the trouble often lies in incorrect installation.

This blog will guide you through identifying common causes of these leaks, such as poor installation or an aging roof, and offer DIY solutions for repair and prevention. We’ll also discuss how proper installation plays a crucial role in avoiding future issues.

With our help, you’ll learn how to address this problem effectively and keep your home safe from water damage.

Read on to protect your investment!

Common Causes of Roof Leaks Under Solar Panels

A damaged roof under solar panels with water seeping through.

Roof leaks under solar panels often happen due to the wrong roof type or bad installation. Old and worn-out roofs also lead to water getting in.

Incompatible Roof Type

Some roofs just aren’t right for solar panels. Shingle roofs, for example, often struggle with the extra weight and are not durable enough for solar power systems. This mismatch can lead to leaks under your solar panels because the roofing materials can’t handle the stress.

During installation, roofers must pick compatible roofing materials like metal or specific tile roofs that work well with SolarCity systems and other solar setups. Using clay tiles or other sturdy options helps avoid damage that leads to leaks.

If you have an incompatible roof type, fixing leaks may involve changing how your rooftop is set up for better safety and energy generation efficiency without causing more harm.

Poor Installation

Poor installation is a key reason roofs leak under solar panels. Often, the company that puts up the solar panels doesn’t do it right. They might not attach the panels securely or seal areas well.

This can let water in and cause damage.

A good installation process includes inspections to stop leaks before they start. The team should check if your roof can hold the solar panels without risking damage. If they skip these steps, your roof might suffer.

Make sure you choose a reputable installer who knows how to work with your type of roof, whether it’s a metal roof or another kind.

Old Roof Condition

After addressing the issues of poor installation, it’s crucial to consider the condition of your roof before adding solar panels. An old roof might already be weak or damaged. Installing solar panels on such a surface can lead to more problems.

The weight and activity during installation may cause further damage or even create leaks.

Old roofs are often more prone to leaking after solar panel setup because they may not fully handle the new load. Panels and their mounts put pressure on roofing materials. If these materials are worn out or near their end, they’re likely to fail sooner.

This failure can let water in, leading to leaks that could harm your home and disrupt solar energy generation. Before installing panels, inspect your roof for signs of ageing or existing damage to prevent future issues caused by compromised integrity.

DIY Solutions for Fixing Roof Leaks Under Solar Panels

A rooftop solar panel installation in a bustling urban environment.

Fixing roof leaks under solar panels can be a challenge. It’s crucial to address these issues promptly to prevent further damage.

  1. Inspect the area for damage: Carefully check around the solar panels and roof for any visible signs of leakage or damage. Look for cracks, holes, or any spots that might allow water in.
  2. Clean the affected area: Before you repair, make sure the roof is clean and dry. Remove any debris or dirt around the leaky spot to ensure a secure fix.
  3. Apply sealant around mounts: Use a high-quality sealant to create a waterproof barrier around the mounting brackets of your solar panels. This helps stop water from seeping into small openings.
  4. Use tar paper or plastic sheeting for a temporary fix: If you find a leak, covering the area with tar paper or plastic sheeting can provide temporary relief until you can perform a more permanent repair.
  5. Check and replace corroded parts: Inspect all metal components for signs of corrosion. Replace any corroded parts immediately to prevent leaks from forming.
  6. Ensure proper installation of solar panels and inverters: Follow manufacturer guidelines closely when installing new panels or inverters to avoid creating potential leak points.
  7. Regularly inspect your roof: Make checking your roof an ongoing task, especially after severe weather conditions, to catch and address leaks early on.

Next, let’s explore how maintaining your solar equipment can further protect your home from leaks.


Fix roof leaks under solar panels quickly to avoid more damage. First, check if improper installation is the problem and call your solar company for help. Some companies, like Palmetto Protect, specialize in fixing these leaks fast and affordably.

Always choose a professional for solar panel installation to prevent leaks from happening in the first place. Taking action right away keeps your roof safe and secure with solar panels on top.

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