Roof Leakage Experienced After Solar Panel Installation | What To Do

Roof Leakage Experienced After Solar Panel Installation | What To Do

Roof Leakage Experienced After Solar Panel Installation | What To Do

The solar modules used in solar panel installations are designed to tolerate a wide range of weather conditions, but they can be damaged by rough treatment or extreme weather. If your roof shows signs of leakage after you have had solar panels installed, it may be because the contractor did not take proper care when installing them. Some potential causes include:


Problem 1: Improperly Secured and Sealed Panels:

Solar panels must be securely attached to the roof’s surface. If they are not, strong winds can cause them to move or pull away from the roof, creating gaps where rainwater can seep in. Additionally, any water-resistant sealant used around the panel perimeter should be checked to make sure it’s still in good condition.


Solution 1: Re-install Your Solar Panel

Don’t let a faulty installation ruin your roof – if you detect any leaks, get in touch with your solar company right away. Fortunately, most companies provide generous warranties to protect their products from defects or other complications caused by poor modules. The length of these warranties can vary between 5 and 25 years depending on the provider – so take advantage of this peace-of-mind!


Problem 2: Improperly Installed Fasteners:

Fasteners used to secure the panels must also be properly installed and sealed. If they are not seated correctly, water can enter through the holes, leading to leaks. Furthermore, any caulking or sealants used must stay put and not degrade over time. If you notice any water intrusion, make sure to have your system inspected by a professional immediately.


Solution 2: Re-install Your Fastener

Ensure your fasteners are properly installed and sealed using companies’ recommended sealants. Warranty coverage from the manufacturer or installer may also provide protection against any damages caused by inadequately installed fasteners. As with module warranties, the length of this warranty will vary depending on the provider, so make sure to take full advantage of it.


Problem 3: Poorly Installed Flashings:

Flashings are important components of any solar installation as they’re designed to protect against water intrusion. Unfortunately, if they’re not properly installed and sealed, they can cause major problems due to water damage. It’s important to inspect your flashings regularly, as any gaps or misalignment can lead to long-term issues that require costly repairs.


Solution 3: Ensure All Flashings Are Installed Correctly

A quality contractor will take the time to ensure that all flashings are correctly installed so they’re sealed against water intrusion. Additionally, many solar companies offer a warranty on their workmanship which can cover any issues that arise from improperly installed flashings. The length of the warranty and the coverage should be discussed with your contractor before beginning any work.


Problem 4: Incompatible Roof Type

When considering solar installation, not all roof types are created equal. Asphalt shingles provide the best compatibility for a successful implementation of your system, compared to clay tiles or flat, lightweight tiles, which come with more risks and complexities.


Additionally, it is important to consider the age of your roof—older roofs may require re-roofing prior to any solar panel instalment in order to ensure maximum efficiency and safety.


Solution 4: Re-roof Before Installation or Perform Partial Roofing

If you have an incompatible roof type, or your roof is older than 10 years, it is important to consider re-roofing before installation. This will help ensure maximum efficiency and safety of your system. If a full re-roofing isn’t necessary, get a reliable roofing contractor to perform partial roofing, only on the parts where the solar models are applied.


If your solar modules are not going to cover your entire roof, partial reroofing is an acceptable option.



Ultimately, defective solar cells causing roof leaks is an incredibly rare occurrence. Far more frequently, the issue arises from poor installation and outdated roofs that are incompatible with the panels.


To ensure your safety from such dilemmas and hassle-free panel installation experience, it is pivotal to choose a trustworthy solar company who will provide pre-calculated estimates of risks involved along with proficient setup services including warranties for their workmanship.

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