How to Fix A Leaking Skylight: A Step-by-Step Guide

Are you dealing with the inconvenience of a dripping skylight every time it rains? Not only is this annoying, but it can also cause significant damage to your home if left unaddressed. Luckily, fixing a leaking skylight is something you can often handle on your own with the right guidance and materials. This step-by-step guide will walk you through the process, from identifying the cause to applying the final touches to ensure your skylight is watertight.

Common Causes of Skylight Leaks

Before you can fix a leak, you need to understand what causes them. Most skylight leaks occur because of improper installation or failures in the skylight’s sealing materials. Over time, the sealant can dry out and crack, especially if exposed to extreme weather conditions. Another common issue is damage to the flashing—the metal strips that help direct water away from the skylight and into the shingles.

Signs of a Leaking Roof Windows

If you suspect your skylight may be leaking, look for signs such as water stains on the ceiling around the skylight, dripping water during or after a rainstorm, and visible cracks in the glass or the frame. Condensation inside the pane itself does not necessarily indicate a leak, but it should prompt you to check the integrity of the seals.

Preparation

Gather Necessary Tools and Materials

To effectively address a skylight leak, ensure you have the following tools and materials on hand: a ladder, a caulking gun, clear silicone sealant, a putty knife, and possibly new flashing material if the existing one is damaged.

Safety Precautions

Working on a roof can be dangerous. Make sure to use a sturdy ladder, wear non-slip shoes, and consider using a safety harness or rope. Never work on a wet or icy roof.

Step-by-Step Guide to Fixing a Leaking Skylight

Step 1: Identify the Source of the Leak

Start by examining the skylight closely both from the inside and the outside. Look for any obvious signs of damage or wear in the sealant and flashing.

Step 2: Clean the Surrounding Area

Clean the glass, frame, and adjacent roof area of any debris, dirt, or old sealant. A clean surface will ensure that new sealant adheres properly.

Step 3: Apply Sealant or Caulk

Apply a bead of clear silicone sealant around the skylight frame where it meets the roof. Use the caulking gun for a smooth application, and use the putty knife to press the sealant into any gaps.

Step 4: Check and Repair Flashing

Inspect the flashing around the skylight. If it's loose or damaged, it will need to be repaired or replaced. Secure any loose sections, and apply roofing cement under any lifted edges.

Step 5: Test for Leaks

man checking his roof window for leaks

After allowing the sealant to cure for the time recommended by the manufacturer, test for leaks. You can do this by gently spraying water on the skylight with a hose. Check from the inside for any signs of water intrusion.

With these steps, your skylight should now be leak-free! And don’t forget that regular maintenance and prompt repairs are key to extending the life of your skylight and preventing future leaks.

While you're here, you might also find it useful to understand both the advantages and disadvantages of installing skylights. Dive deeper into the subject by reading about the roof window pros and cons, and equip yourself with all the knowledge you need to make informed decisions about your home improvements.

Additional Tips and Considerations

Regular Maintenance Practices

To prevent future leaks, regular maintenance is key. Inspect your skylight annually for any signs of wear and tear. Clean the glass and frame to remove dirt and debris that might prevent proper drainage. Also, check the sealant and flashing for any deterioration or damage, and make repairs as necessary. Maintaining the area around the skylight clear of overhanging branches or accumulated snow can also help minimise risks.

When to Seek Professional Help

While many skylight leaks can be fixed with DIY efforts, there are times when calling in a professional is advisable. If the leak is caused by structural damage to the roof, or if the skylight requires complete replacement, professional services might be necessary. Additionally, if after attempting a repair, you continue to notice water intrusion, a roofing professional can offer a more comprehensive solution and ensure that there are no underlying issues compromising your roof’s integrity.

Final Thoughts

Ultimately, with the right tools and a careful approach, it’s definitely achievable to fix a leaking skylight on your home. Remember, the key to a successful repair lies in accurately identifying the problem, using the right materials, and undertaking regular maintenance. However, don't hesitate to contact a professional if the problem persists or the repair is beyond your comfort level. And for additional enhancements to your home, consider exploring our top quality roof windows collection.

Remember, addressing skylight issues promptly not only saves your home from water damage but also ensures that your skylight continues to bring natural light into your home effectively. So whether you’re a seasoned DIYer or just getting started, fixing a leaking skylight can be a rewarding project that enhances your living space and protects your investment.

Published at: 23-04-2024
Mikey Hill
Mikey Hill

Mikey Hill is the E-commerce department manager at JJ Roofing. With over a decade of experience in the roofing industry, he has extensive knowledge in flat and pitched roofing, roof windows, and fascia and guttering.

Mikey also has an excellent understanding of raw material attributes, ensuring the application of best practices across all roofing structures. As a result of his deep understanding of the roofing industry and dedication to excellence, over the last several years, Mikey has become a pivotal figure at JJ Roofing and is part of the reason why we continue to exceed our customer’s expectations.

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