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and Installer of Metal Roofing
London Eco-Metal Blog

Why is My Metal Roof Leaking?

emergency-roof-repairMetal roofing provides unique durability, sustainability, and security for your home or business. However, even this strong substance has leaks. While these problems rarely lead to emergency roof repair, knowing how to identify and fix roof leaks will help you protect your home. What are some of the most common reasons for metal roof leaks?

Roofing Screws

Leaks in a metal roof can result from screws that are improperly driven. If the screws are driven at an angle, or they are too large for the application that they rip a hole in the wood underneath, making them unstable. However, if a leak around a screw were to ever occur, the amount of water that could possibly make it under your roof will be wicked away by the membrane. A hole in a metal roof, while not an emergency, should be taken care of as soon as possible as it may grow to become a larger leak. To avoid any and all leaks, it is important to hire a trained professional to install your roof.

Missing Sealants

Be sure that you install your roof with the correct roof sealant. Manufacturers recommend a sealant specifically designed for metal roofs. Some caulking types do not work well with metal roofs. Have an inspection to pinpoint any areas that might have missing sealant. Especially look at metal ridge caps, around roof transitions, counter flashing, pitch pans, and Z flashings.

Other Common Problems

Capillary draw occurs when water travels along two tightly joined metal pieces, leading to a leak. Water also gets trapped behind HVAC units. Watch for issues around stack flashings, or the “boot” around pipes jutting out from metal roofs. Over time sunshine degrades the boot, leading to leaking water. Rubber flashings can also deteriorate over time. While the metal roofing itself is not prone to leaking, be sure to have a roofing professional inspect your roof for these specific problems.

Is your roof leaking? Give us a call today. We can help you identify the problem with your roof and provide an affordable solution.