12 Laverock Rd, Warrnambool VIC 3280
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8 March, 2024 JC Roofings

Water leaking from your ceiling is a clear sign of a roof leak. You may also notice water stains on walls or ceilings. It’s important to find and fix roof leaks quickly. Otherwise, they can lead to costly damage to your home’s structure, insulation, and belongings. Learning how to locate a roof leak is crucial for any homeowner.

Inspect the Attic for a Roof LeakĀ 

Look for moisture, discolouration, or water stains on the rafters, sheathing, and insulation. Also, examine the underside of the roof deck, too. You may see wet spots or trails leading to the leak source. Pay special attention to roof vents, plumbing pipes, and chimneys – common locations.

Check the Roof Exterior

Next, inspect the exterior roof for a leak. Look for cracked, curled, or missing shingles. Also, check for gaps or holes that could let water in. Examine flashing around chimneys, skylights, and vents. Look for cracks, rust, or improper sealing here as well. Inspect roof valleys where planes meet. And check areas near plumbing vents for deterioration or openings.

Try a Water Test. Still can’t pinpoint the roof leak?

Try a water test on a dry, sunny day with little wind. Have someone go into the attic with a light and bucket. Simultaneously, run a hose over the roof exterior. Start at lower areas first, then work upwards, saturating one section at a time. The person in the attic should watch for drips and mark those spots or signs. This can reveal the exact leak location on the roof.

Inspect During Rain (Safely)

If it’s raining, avoid walking on slippery roof surfaces. Instead, inspect from the ground using binoculars or a zoom camera. Also, Look for water trails or discoloured areas around flashings, skylights, vents, and valleys. Finding these trouble spots can guide your roof repair work.

Safety First for DIY

While DIY Roof leak detection saves money, safety comes first. Use proper ladders and wear slip-resistant shoes. Avoid power lines and overhead obstacles. If you’re uncomfortable on roofs, hire a professional roofer. They have tools like moisture meters and thermal cameras to pinpoint hard-to-find leaks.

Professional Roof Leak Repair

Professionals can then make targeted roof repairs. This may involve replacing damaged shingles, flashing, or sealants to stop water entry. Regular roof maintenance and inspections also prevent future roof leaks. Keep an eye on valleys, flashings, and roof penetrations for potential problems.


In summary, locating a roof leak involves careful attic and inspections. Try water tests if the source isn’t obvious. Address leaks quickly to prevent interior damage and high repair costs. Be safe working at heights. Consider hiring pros for complex roof leak repair or if you’re uneasy on ladders or roofs. Thus, with some diligence, you can protect your home’s structure and contents for years.

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