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How to Fix a Leaking Tile Roof

Date: March 31, 2025

Fixing a leaking tile roof can be a daunting task, but with the right approach, you can save your home from water damage and costly repairs. As a homeowner, it's essential to identify the source of the leak quickly and take action. 

Whether it's a cracked tile, loose flashing, or worn-out underlayment, addressing the issue promptly is key. By following a step-by-step guide and using the right materials, you can restore your roof's integrity and ensure a dry, comfortable living space. With patience and some DIY skills, you can fix that leak and enjoy peace of mind.

Understanding Tile Roof Leaks

Tile roofs are durable, but they aren’t indestructible. Over time, wear and tear, weather damage, and improper installation can lead to leaks. Ignoring small leaks can result in costly structural damage. That’s why identifying the cause early is crucial.

Common Causes of Tile Roof Leaks

CauseDescriptionHow It Leads to Leaks
Cracked or Broken TilesWeather, foot traffic, or impact can fracture tilesAllows water to seep through to the underlayment
Damaged UnderlaymentAging or deteriorated waterproof layer beneath tilesLoses effectiveness in repelling water
Faulty FlashingLoose, rusted, or improperly sealed flashing around joints and openingsWater seeps in at vulnerable connection points
Poor InstallationMisaligned or poorly secured tilesCreates gaps and weak points in the roof system
  • Cracked or broken tiles – Harsh weather, falling branches, or foot traffic can cause tiles to crack, allowing water to seep through.
  • Damaged underlayment – The waterproof barrier beneath the tiles can deteriorate over time, leading to leaks.
  • Clogged or faulty flashingFlashing around chimneys, vents, and valleys directs water away. If it's damaged or blocked, water can pool and penetrate the roof.
  • Poor installation – Incorrectly placed tiles or improper sealing can create gaps where water gets in.

Signs You 5Have a Tile Roof Leak

Some of the most common signs of a leak include water stains on ceilings or walls, mold or mildew growth, dripping water during rainstorms, and musty odors in your attic.

If you notice any of these signs, address the problem immediately to prevent costly repairs. Whether it’s a minor fix or a major repair, understanding the source of the leak is the first step in protecting your home.

How to Identify a Leak in Your Tile Roof

Detecting a leak early can save you from expensive repairs. Signs of a leak include water stains on ceilings, mold growth, or damp spots in the attic. You may also notice missing or shifted tiles on the roof. After a storm, inspecting the roof for visible damage can help catch leaks before they get worse.

By understanding the common causes and warning signs of a leaking tile roof, you can take the right steps to fix the issue before it leads to serious damage.

DIY vs. Professional Repair

When faced with a leaking tile roof, you may wonder whether to fix it yourself or hire a professional. While some minor repairs can be done on your own, more serious issues require expert attention to ensure long-term protection for your home.

When Can You Fix It Yourself?

For homeowners who are comfortable working on their roofs, small repairs can be a DIY project.

Replacing a single cracked tile or sealing minor gaps with roofing sealant is manageable if you have the right tools and safety precautions. However, it’s important to assess the damage before attempting any repairs.

You may be able to handle simple fixes like replacing a broken tile, sealing small cracks with roofing sealant, or clearing debris from clogged flashing. These repairs can help prevent leaks from worsening if done correctly.

However, safety should always be your top priority. Working on a roof can be dangerous, especially on steep slopes or in wet conditions. Always use a stable ladder, wear slip-resistant shoes, and avoid walking on fragile tiles to prevent further damage.

When to Call a Professional

While DIY repairs may seem cost-effective, hiring a professional is the best choice for major leaks, underlayment damage, or widespread tile issues. If water has already seeped into the underlayment or multiple tiles are broken, professional intervention is necessary.

Experienced roofers have the skills and equipment to inspect the roof thoroughly, repair deteriorated underlayment, and realign tiles properly. They can also ensure that repairs meet industry standards, preventing future leaks and costly damage.

If you notice water stains on your ceiling, mold growth, or a significant number of missing tiles, calling a professional is the safest and most reliable option. Investing in expert repairs can extend the lifespan of your roof and protect your home from further structural issues.

Step-by-Step Tile Roof Repair (DIY)

Repairing a leaking tile roof on your own can save money, but it requires the right approach to prevent further damage. Handling tiles incorrectly can cause more breakage, so taking your time and using the right techniques is essential. If the damage is minor and you feel comfortable working at heights, follow these steps to safely and effectively fix the leak.

StepAction
1. Identify the LeakTrace interior stains to roof, inspect for broken or displaced tiles
2. Gather MaterialsLadder, harness, pry bar, replacement tiles, sealant, nails/clips
3. Remove Damaged TileCarefully lift adjacent tiles, slide out broken tile
4. Check UnderlaymentInspect for tears or damage; patch or replace as needed
5. Install New TileAlign and secure using appropriate fasteners or adhesive
6. Seal Minor CracksApply roofing sealant over small cracks as a temporary fix
7. Monitor After RainfallCheck for continued leakage to ensure repair was successful
Step-by-Step Tile Roof Repair (DIY)

Step 1: Identify the Source of the Leak

Before making any repairs, locate the exact spot where water is getting through. A visible crack in a tile or a displaced tile is usually a clear sign of trouble. If the leak is inside your home, trace the water stains on the ceiling to their highest point, then check the corresponding area on the roof. Keep in mind that water can travel along the underlayment before dripping inside, so the leak may not always be directly above the interior stain.

Step 2: Gather the Necessary Tools and Materials

Once you’ve found the damaged area, you’ll need the right tools to complete the repair safely. A sturdy ladder, a roofing harness, and slip-resistant shoes are necessary for working on a tile roof. Avoid stepping directly on tiles, as they can easily crack under pressure. Instead, walk on the lower edges of tiles or use a plywood board to distribute your weight evenly.

You’ll also need replacement tiles that match your existing roof, a pry bar, a trowel, roofing sealant, and nails or clips to secure the new tiles.

Step 3: Remove the Damaged Tile

To remove a cracked or broken tile, carefully lift the tiles above it using a pry bar. Most tiles overlap, so you’ll need to gently slide the damaged tile out without disturbing the surrounding ones. If the tile is stuck, avoid forcing it out, as this can break neighboring tiles. Instead, wiggle it free while applying gentle pressure.

Once removed, check the underlayment beneath the tile. If it’s torn or deteriorating, you may need to apply a waterproof patch or replace that section before installing the new tile.

Step 4: Install the New Tile

Slide the replacement tile into position, ensuring it aligns properly with the surrounding tiles. Depending on your roof type, tiles may be secured with nails, clips, or adhesive. If using nails, place them in pre-existing holes to avoid cracking the tile. If adhesive is needed, apply a small amount underneath the tile to hold it in place.

Make sure the new tile sits flush with the others and does not lift or shift. If it’s uneven, water can seep underneath and continue causing leaks.

Step 5: Seal Any Cracks and Inspect the Area

If your tiles are mostly intact but have small cracks, applying a roofing sealant can be a quick fix. Use a trowel to spread the sealant over the cracked area, ensuring it fills the gap completely. While this method won’t be as durable as replacing the tile, it can temporarily prevent leaks until a professional repair is possible.

After completing the repair, inspect the surrounding area for any additional damage. Check nearby tiles, flashing, and underlayment to ensure everything is in good condition. If you notice widespread damage, consider having a professional assess the roof for a more permanent solution.

Step 6: Monitor for Further Leaks

Once the repair is complete, keep an eye on the area after the next rainfall. If water stains or damp spots appear again, the problem may be more serious than a simple tile replacement. In that case, it’s best to consult a roofing expert to inspect for deeper issues, such as underlayment failure or structural damage.

By following these steps carefully, you can successfully repair minor leaks in your tile roof. However, if the damage is extensive or if you feel unsure about working at heights, hiring a professional is always the safest choice.

Preventative Maintenance

Tile roofs are known for their durability, but without proper maintenance, they can develop leaks over time. Regular upkeep helps prevent costly repairs and extends the life of your roof. By addressing small issues early, you can avoid major water damage and ensure your roof continues to protect your home.

IssuePrevention Strategy
Roof tile agingReplace old or damaged tiles promptly
Poor drainageClean gutters and install guards
Flashing wearRe-seal or replace as needed
Moss and debris accumulationUse safe moss removers; trim trees nearby
Weak ventilationEnsure attic is well-ventilated to prevent moisture buildup
Maintenance Tips for Long-Term Leak Prevention

Regular Roof Inspections

Inspecting your tile roof at least twice a year can help catch potential problems before they worsen. It’s best to check after heavy storms or extreme weather conditions, as strong winds and debris can damage tiles. Look for cracked, broken, or missing tiles, as even minor gaps can allow water to seep through. Pay attention to the roof valleys, as water tends to collect in these areas.

If you’re comfortable, perform a visual inspection from a ladder or the ground using binoculars. However, walking on a tile roof can be risky, as tiles can easily crack under pressure. If a closer inspection is needed, it’s safer to call a professional roofer.

Keeping Gutters and Drains Clear

Clogged gutters and drains can cause water to back up onto the roof, increasing the risk of leaks. Leaves, dirt, and debris can accumulate over time, blocking proper drainage. Regularly cleaning your gutters ensures that rainwater flows away from the roof instead of pooling around tiles.

Downspouts should also be checked for blockages. If water is spilling over the edges of your gutters, it’s a sign they need cleaning. Installing gutter guards can help reduce debris buildup and make maintenance easier.

Checking and Maintaining Flashing

Flashing is a critical component of your roof, sealing areas where water could enter, such as around chimneys, vents, and skylights. Over time, flashing can loosen, rust, or crack, creating weak points where leaks can develop. Inspect flashing regularly and reseal or replace it as needed to prevent water intrusion.

If you notice gaps or corrosion, applying a waterproof sealant can provide a temporary fix, but replacing damaged flashing is the best long-term solution. Flashing issues are a common cause of roof leaks, so keeping it in good condition is essential.

Trimming Overhanging Trees

Branches that hang over your roof can cause serious damage. During storms, strong winds can snap branches, leading to broken tiles or punctures in the roof. Even smaller branches that constantly rub against the roof can wear down protective layers and weaken tiles.

Regularly trimming trees near your home reduces the risk of falling debris. It also minimizes the buildup of leaves and moss, which can trap moisture and lead to mold growth.

Addressing Moss and Algae Growth

Moss and algae can take hold in damp areas of your roof, particularly in shaded spots. While they may seem like minor cosmetic issues, they can trap moisture and accelerate tile deterioration. Left unchecked, moss can lift tiles and allow water to seep underneath, leading to leaks.

To remove moss or algae, use a soft-bristled brush and a mild roof cleaner designed for tile surfaces. Avoid using pressure washers, as high-pressure water can crack or dislodge tiles. Preventative treatments, such as zinc or copper strips, can help keep moss and algae from returning.

Ensuring Proper Ventilation

A well-ventilated attic plays a crucial role in maintaining a healthy roof. Poor ventilation can trap heat and moisture, leading to condensation buildup that weakens the underlayment. Ensuring adequate airflow helps regulate temperature and prevents moisture-related damage.

Check your attic vents regularly to make sure they are not blocked by insulation or debris. If your attic feels excessively hot or humid, consider installing additional ventilation to improve air circulation.

Common Causes of Leaks (Other Than Your Roof)

As you've now mastered the art of fixing a leaking tile roof, it's time to explore other potential sources of water woes in your home. While roofs are often the first suspects when it comes to leaks, they're not the only culprits. 

We'll now delve into the common causes of leaks that have nothing to do with your roof. From faulty plumbing to hidden issues in your walls, understanding these lesser-known sources can help you tackle water damage more effectively. Stay tuned for more insights on how to keep your home dry and secure.

About Mikku & Sons
Mikku and Sons red repair track with its logo painted on its side- roofing company track wraps
Our roofing company was founded in 2001 by Michael Riutta, who is still part of the ownership and management team. Between Michael, his two sons and co-owners, Devin and Joshua, and our crew members, we have many years of experience to handle any type of roof repair or roof installation solutions you may need.
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