What Causes Leaks in Solar Power Systems? Effective Countermeasures Introduced!

“After installing solar power generation, there are leaks…”

This kind of trouble is certainly not someone else’s problem.

Many people may be hesitant to install solar power generation due to concerns about the risk of leaks.

Therefore, this time we will explain in detail about the causes of leaks in solar power generation and effective countermeasures!

To operate solar power generation with peace of mind and to maintain your comfort in life, please be sure to check it out!

Causes of Leaks in Solar Power Generation

The main causes of leaks in solar power generation can be attributed to the following four factors.

・Lack of knowledge and experience of the installation contractor
・Shoddy construction
・Aging deterioration
・Natural disasters

Let’s take a closer look at each of these.

Lack of Knowledge and Experience of the Installation Contractor

Leaks caused by solar power generation may be due to the lack of knowledge and experience of the installation contractor.

This is because solar power generation requires not only knowledge about equipment and electricity but also specialized knowledge about roof structures, the characteristics of roofing materials, and waterproofing processes.

For example, the types of fittings and construction methods differ between slate roofs and tile roofs.

Inexperienced contractors are prone to making mistakes, such as adopting inappropriate methods for roofing materials or using incorrect construction techniques, which can lead to leaks.

Shoddy Construction

If a contractor has shallow knowledge and makes mistakes in construction, that can be understandable.

However, there are also malicious contractors who intentionally avoid necessary work.

Such contractors often cut corners to reduce labor and maximize profits, but if panels are installed poorly due to sloppy work, it can lead to various troubles, including leaks.

Even if leaks do not occur, issues such as reduced power generation or panels failing soon after installation can also arise, so please be cautious.

Aging Deterioration

To implement solar power generation, various equipment such as panels, power conditioners, and mounting frames are required.

However, these are consumables and deteriorate over time.

Even if there are no issues with the contractor’s work, parts gradually deteriorate over time, and waterproof layers may begin to crack or peel.

If that happens, the risk of leaks significantly increases, so it is essential to conduct regular inspections and perform repairs as needed.

Natural Disasters

Typhoons, earthquakes, and other natural disasters can damage roofs, causing the fittings that secure the panels to loosen or detach.

In such cases, the likelihood of waterproofing layers peeling off or cracks occurring in roofing materials increases, raising the risk of leaks.

In the case of natural disasters, it cannot always be said that solar power generation is the cause, but it can be one of the contributing factors, so please be aware of this.

What Happens When Leaks Occur in Solar Power Generation?

If leaks occur due to solar power generation installed on the roof, it can lead to the following troubles.

・Causes stains and mold
・Accelerates wood decay
・Leads to the emergence of pests and vermin

Let’s take a closer look at each of these.

Causes of Stains and Mold

When moisture seeps into the ceiling or walls, brown stains and water marks appear.

If left unattended, moisture can accumulate inside, becoming a source of mold growth.

Many of you may already know that mold spores float in the air and can pose health risks such as asthma and allergies, so it is essential to prevent it before it starts.

Furthermore, mold takes root, and once it appears, it can take time to resolve the issue completely.

In some cases, it can lead to not only time and effort but also additional costs, so caution is necessary.

Progression of Wood Decay

If rainwater leaks cause the pillars, beams, and roof sheathing to absorb moisture, decay and deterioration will progress.

This can lead to a decrease in the strength of the wood, resulting in reduced seismic resistance and an increased risk of roof collapse.

However, the decay and deterioration of pillars, beams, and sheathing are often discovered late, and by the time you notice it, it may be too late. Therefore, it is important to regularly check the solar power system and the areas around the roof.

Occurrence of Pests and Rodents

If rainwater leaks due to the solar power system, it can lead to an increase in pests and rodents.

This is because insects and animals tend to prefer moist environments.

Termites, in particular, can damage wood and cause severe harm in hidden areas.

Additionally, if mice take up residence in the attic, they may chew on wiring, potentially causing fires, so please be cautious.

Tips to Prevent Rain Leaks from Solar Power Systems

Here are some tips to prevent rain leaks from solar power systems:

・Hire a contractor with extensive experience
・Upgrade to durable roofing materials before installing solar panels
・Perform regular maintenance
・Install panels without making holes in the roof

Let’s take a closer look at each point.

Hire a Contractor with Extensive Experience

To prevent rain leaks while maximizing the effectiveness of the solar power system, it is crucial to hire a contractor with extensive experience.

When requesting the installation of a solar power system, it is easy to prioritize price, but it is also important to consider the following points.

・Do they have a wealth of construction experience?
・Do they offer comprehensive warranties?
・Do they have skilled craftsmen knowledgeable about roofing materials and structures?

Particular attention should be paid to door-to-door sales.

In door-to-door sales, you may be rushed into signing a contract without being able to do much research, making it easier to fall into the hands of low-quality contractors.

Installing a solar power system involves significant costs, and improper installation can lead to troubles such as rain leaks, so it is essential to hire a contractor you can genuinely trust.

Upgrade to Durable Roofing Materials Before Installing Solar Panels

The lifespan of waterproofing materials, such as caulking, can vary significantly between inexpensive and high-durability options.

If you want to reduce the risk of rain leaks, it is advisable to choose materials with a durability of at least 20 years.

If the existing roof is made of slate or shingles, upgrading to high-durability roofing materials like Galvalume steel before installing solar panels can eliminate the risk of rain leaks for an extended period!

Perform Regular Maintenance

To maximize the effectiveness of the solar power system and prevent troubles such as rain leaks, it is important to perform regular maintenance.

・Check for any looseness in the panels and fittings
・Ensure that the caulking is not peeling
・Check that there is no debris clogging the rain gutters or drainage areas
・Look for any stains on the ceiling

By regularly checking these items, you can quickly identify and address any faults or issues, making it easier to prevent problems such as water leaks.

Installing panels without making holes in the roof

In recent years, the “Catch Method,” which allows for installation without making holes in the roof, has been gaining attention.

By using the Catch Method for installation, you can attach panels while maintaining waterproofing and without reducing the durability of the roofing materials.

Of course, whether the Catch Method can be adopted depends on the type of roofing material and the condition of the roof, so if you want to minimize the risk of leaks as much as possible, please consult a professional.

The Catch Method can only be applied to metal roofs.

If you are considering the installation of solar panels, please consult Kakeru Koumuten Co., Ltd.

Our company handles a wide range of exterior renovations, including roof work and exterior wall work, including solar panel installation. We receive requests from many customers, including renovation companies and real estate agencies!

Kakeru Koumuten Co., Ltd. promises “high-quality renovations at low cost”, and we have received positive feedback from numerous customers.
We continue to update our construction performance every year, and we will strive to improve quality to ensure even more customer satisfaction in the future.

Our company can handle all exterior renovations, not only roof overlay and re-roofing work but also partial roof repairs, exterior wall painting, and exterior wall cover methods.
We are also happy to assist with small jobs such as partial repairs and rain gutter cleaning!

In urgent cases such as water leak repairs, we may also be able to provide emergency measures without scaffolding, so please consult us!

“I want to know about recommended solar panels”, “I want to keep costs as low as possible”, “I just want an estimate for now”, we will provide the best solutions for your specific requests. We will never propose unnecessary work focused on profit! We always stand in the customer’s position and propose the best construction plans!

We are confident that we will not be outdone by other companies in terms of cost, quality, and organization for exterior work!
We welcome competitive estimates! Our estimates are completely free, and if you find that our company is inferior to others, you are welcome to decline outright!

Conclusion

Water leaks caused by solar power generation can occur due to various factors such as construction defects, equipment deterioration, and natural disasters.

The roof is a very important part of a house, and once a water leak occurs, it can disrupt daily life, so let’s take the information provided here into account and implement effective leak prevention measures.

Additionally, to prevent water leaks caused by solar power generation, it is essential to hire a contractor with extensive experience.

However, since there are contractors nationwide that handle solar panel installations, it can be difficult to decide where to consult.

In such cases, please feel free to consult “Kakeru Koumuten,” which operates mainly in Kanagawa Prefecture and Tokyo.

We welcome inquiries via LINE as well◎

For roofing, guttering, and exterior work and repairs in Kanagawa, contact Kakerukoumuten Co., Ltd..

AAA is a young company with an average age in the early 20s, but our technology is second to none.

One of our greatest strengths is that we can do all of our own scaffolding, roofing, and painting work. In this industry, where work is generally divided, we are able to provide a complete set of services, which saves time and effort in management and reduces costs. Above all, if there is any trouble, we will come to you right away!

We can confidently declare this. We are the youngest and most friendly renovator in Kanagawa!