Even though metal roofing is one of the strongest and most durable types available, it can still be susceptible to leaks if there is an error during the installation or if enough deterioration has occurred. The more familiar you are with the reasons for the leaks, the faster you’ll be able to diagnose the problem. With some quick pointers from a premier roofing contractor, like Lasco Roofing & Sheet Metal of New Milford, CT, you can become a more savvy steward of your roof.

A Roofing Contractor’s Guide to the Causes of Metal Roof Leaks

Degraded Flashing 

The regions near pipes on the roof’s surface are known as stack flashings. They create a seal around each pipe, but these rubber areas are not as durable as the metal roof itself. With enough sun exposure, the flashing will start to crack, allowing water to pour in. In other cases, the flashing is stressed when the metal surface shifts slightly due to the weather. 

Problematic Screws

When metal roofing is installed, the metal sheets rely on screws to hold them in place. Each screw in the residential roofing system works with a rubber washer to create a seal so no water can leak into the home. But, sometimes, the screws are driven in so strongly that they break the washer; other times, they aren’t driven in enough, so the washer is loose, again providing a pocket for water. 

Old Sealants

Like many surfaces, metal roofs are often outfitted with sealants to promote a longer life and help create a firm border around vulnerable areas, like ridge caps and roof transitions. After a few years, these sealants will start to break down and must be restored. If that maintenance task is neglected, your home may be plagued by leaks.

If your metal roof is leaking, don’t hesitate to reach out to Lasco Roofing & Sheet Metal. As specialists in roof leak repairs, they can swiftly mitigate and seal the leak. To schedule an appointment with the professionals, just call (860) 355-8060. Learn more about the roofing contractor by visiting their website.