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Common TPO Roofing Problems and Solutions

Posted on : January 16, 2025

Common TPO Roofing Problems and Solutions

TPO is a popular material choice for flat roofs, and for good reason. TPO (thermoplastic polyolefin) roofing membranes are affordable and energy efficient. 

However, if you are planning to install this roof type on your property, it’s a good idea to have a basic understanding of the common problems with TPO roofing membranes. 

At McClellands Contracting and Roofing, LLC, we are your local roofers in Pittsburgh, PA. In this complete article, we will take a look at seven common TPO roofing problems and explain how to fix them. 

\If you are not sure about the existing condition of your TPO roof in Pittsburgh or the surrounding regions in Pennsylvania, schedule a free roof inspection with us. Give us a call at (412) 353-5660.  

Seven Common TPO Roofing Problems and How To Fix Them

Here are seven problems with TPO roofs that property owners generally face:

#1 Leaks and Moisture Problems

Water leaks are perhaps the most concerning problem that you can face with your TPO roof. Most leaks start small but can quickly turn into expensive damage if left unaddressed. 

You might also notice water stains on your ceiling or walls, which are clear indicators of a leak. These problems generally occur because of improper installation or damage to the membrane over time.

How To Repair Leaks In TPO Roofs

To address roof leaks effectively, you need to take immediate action. The very first step is to locate the source of the leak. Once you find it, there are a few ways to repair it based on the extent of damage. 

Repairing leaks in TPO roofs is possible by patching the damaged areas, reinforcing seams, or, in some cases, replacing sections of the membrane. We recommend calling for professional assistance if you don’t have previous experience repairing leaks in TPO membranes. 

#2 Seam Failures

Seam failures represent one of the most vulnerable aspects of TPO roofing systems. Your roof's seams are where two sheets of TPO membrane join together, typically through heat welding or adhesive application. 

When these seams fail, you might notice separation, which can lead to water infiltration and compromise your roof's integrity.

How to Fix Failed Seams In TPO Roofs

If you notice problems with the seams of your TPO membrane, address them immediately by having a professional re-weld the affected areas or apply appropriate adhesives. 

Regular seam inspections should be part of your routine roof maintenance schedule. 

To prevent seam failures, make sure that your initial installation is done by qualified professionals who understand the precise temperature requirements for heat welding TPO membranes.

#3 Punctures and Tears

Punctures and Tears

TPO is a type of single-ply membrane, and like all other roofing membranes, it is vulnerable to punctures and tears. This common TPO roof problem requires your immediate attention. These issues commonly arise from excessive foot traffic, falling debris, or maintenance work on your roof. 

The single-ply nature of TPO membranes makes them particularly susceptible to this type of damage, especially in areas with high foot traffic or where equipment is frequently serviced.

How To Fix Punctures and Tears In TPO Roofs

You can implement several preventive measures to avoid any punctures and tears in TPO roofs. Install designated walkways for maintenance access, regularly remove debris from your roof, and make sure that any equipment maintenance is performed with proper protection for the roofing membrane.

If damage does occur, swift repairs using patches, coatings, or adhesives are very important to prevent water infiltration and further deterioration of the roofing system. 

#4 Water Ponding

Ponding water presents a serious and very direct threat to your TPO roof's overall integrity. When water remains on your roof for more than 48 hours, it can start to compromise the roofing membrane and create conditions for premature aging and deterioration. 

Generally, water ponding starts as the result of poor drainage issues or installation problems on your roof that prevent proper water runoff.

How To Fix Water Ponding On TPO Roofs

Like other TPO roof repairs, there are a few different ways to fix water ponding on TPO roofs. 

The first step is to check whether your roof has adequate slope and functioning drainage systems. If not, then let a roofing professional assist you in fixing that. In some cases, structural issues on the roof can result in water ponding. In this case, you will need professional assistance to install additional drainage solutions or modify the roof's slope through tapered insulation systems.

One DIY-friendly fix is to clean your gutters and drains regularly to prevent any blockages. 

#5 Weathering and UV Damage

While TPO roofs are designed to withstand the stress of severe weather, regular exposure to intense UV radiation and extreme temperatures can accelerate wear and aging. 

This is particularly concerning in areas with high sun exposure or severe temperature fluctuations. Over time, you may notice your roof becoming brittle or showing signs of cracking.

How To Fix Weathering Or UV Damage On TPO Roofs

To fix weather-related damage on your TPO roof, you can apply specialized roof coatings. Choose the right coating that works well for your area's local weather conditions. 

If you have spotted any major weather damage on any specific area of your roof, then you can consider replacing the membrane. Make sure that you schedule professional roof inspections at least twice a year, as regular roof inspections help find early signs of weather-related damage.

#6 Installation Quality

Your TPO roof's performance largely depends on proper installation. Temperature plays a very important role during installation, as TPO membranes need specific conditions for optimal adhesion and welding. 

The ideal temperature range for installation generally falls between 40 degrees and 80 degrees. When temperatures fall outside this range, your contractor needs to take special precautions to ensure proper membrane attachment and seam welding.

Roof deck preparation also significantly impacts your roof's longevity. Your roofing contractor should thoroughly clean and dry the roof deck before installation begins. 

Any moisture trapped between the membrane and roof deck can result in adhesion problems and premature failure. So, your roofer needs to address any existing roof damage or deterioration before installing the new TPO membrane.

How To Avoid Poor TPO Roof Installation

To avoid installation-related problems, work with certified roofing contractors who have specific experience with TPO systems. 

It is recommended to request references of the contractor's past work and to review their track record with TPO installations.

Once the roof installation is complete, consider scheduling a roof inspection to verify the quality of work and address any issues before they develop into larger problems.

#7 Aging and Material Deterioration

As your TPO roof ages, natural deterioration becomes a growing concern. Even with proper maintenance, you'll notice changes in the membrane's flexibility and overall performance. 

Understanding the signs of aging helps you plan for necessary repairs or replacements before major problems develop.

How To Address Aging and Material Deterioration In TPO Roofs

Monitor your roof for signs of aging, such as membrane shrinkage, cracking, or loss of flexibility. Implement a maintenance routine that includes regular roof inspections and preventive repairs. 

Additionally, consider budgeting for eventual replacement as your roof approaches the end of its expected lifespan, generally 15 to 30 years, depending on installation quality and environmental conditions.

How Much Does It Cost To Repair A TPO Roof?

The cost of repairing your TPO roof varies significantly depending on the size and type of damage. 

Minor repairs like small punctures or limited seam failures might cost between $300 and $1,000, while more extensive repairs involving multiple issues or large areas can range from $1,000 to $5,000 or more. 

When considering repairs, consider immediate costs and long-term benefits of quality repairs.

Also Read: How Much Does TPO Roofing Cost In Pennsylvania?

Do TPO Roofs Need Professional Repairs?

While some property owners think that it is more affordable to handle minor TPO roof repairs themselves, professional repairs often prove more cost-effective in the long run. 

TPO welding and other expensive repairs require specialized equipment and expertise to ensure proper adhesion and prevent future failures. Additionally, DIY repairs might void your roof's warranty and can result in more expensive damage if not performed correctly.

If you’re looking for professional TPO roofing services in Pittsburgh, we are here to help. 

Get Professional TPO Roofing Services In Pennsylvania

At McClellands Contracting and Roofing, LLC, we are committed to providing professional and high-quality TPO roofing services in Pittsburgh and the surrounding areas of Pennsylvania.

From basic roof repairs to complete replacement, our team of professionals is committed to providing outstanding results. 

Other than TPO roofs, we also work on different types of roofs, including asphalt shingles, EPDM, PVC, tile, metal, wood, and more. 

With years of experience in the roofing industry, our professional roofers can easily spot ongoing problems in your roofing membrane. To get a free estimate today or to get a custom roof quote, feel free to call us at (412) 353-5660.

FAQs

A. With proper installation and maintenance, your TPO roof can last between 15 and 30 years. However, environmental conditions and maintenance practices significantly impact longevity.

A. While TPO membranes can withstand occasional foot traffic, you should minimize roof access and use designated walkways when possible to prevent unnecessary wear and damage.

A. Schedule professional inspections at least twice yearly, typically in spring and fall. Additional inspections after severe weather events help identify potential damage early.

A. TPO offers a nice combination of energy efficiency, durability, and cost-effectiveness. Its white surface reflects UV rays, helping reduce cooling costs, while its welded seams provide excellent water resistance when properly installed.

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