4 Common Causes behind a Leaking Roof Skip to main content

4 Common Causes behind a Leaking Roof

A leaking roof is bad news for many reasons. First of all, the leak could be significant enough that you’ll actually experiencing water dripping down into your home. In addition, even a minor leak can result in damage from the water itself as well as additional damage from mold or mildew growing in the attic. No matter how serious your roof leak, it’s important to get the help of home roofers in Annapolis, MD, before the damage becomes severe. Here are 4 of the most common causes of leaking roofs.

Raining on roof

Missing or Damaged Shingles or Nails

It’s common for shingles to eventually break or for your roof to lose a few during severe weather. However, if you have numerous broken or missing shingles you’re at risk of leaks not only because that first protective roofing layer is gone, but because the underlayment can be affected as well. When the underlayment becomes exposed because shingles have worn away or the roofing nails have backed out, the layers will begin to wear out and you’ll experience leaking. Even the small holes left by missing nails can allow moisture to penetrate the roof layers. Missing shingles or nails doesn’t always necessarily mean you need to totally replace your roof. Annapolis roofers can thoroughly inspect your roof to ascertain the damage and determine whether roofing repairs can address the problem or not. If your roof isn’t near the end of its 20- or 30-year life span, it’s possible that repairs can address the leaking.

Vent and Valley Exposure

The vents and valleys on your roof are another common culprit for leaking roofs. The valleys and other areas where the roof comes in contact with a vertical surface, such as a dormer window, is more susceptible to leaks. That’s why metal flashing is installed by roofers to keep moisture out and provide additional protection in those weaker areas. Flashing can get damaged or even get blown away in a strong storm, which often results in an immediate leak. The vents also require additional protection. Any ventilation for plumbing or heating needs a rubber boot, which is similar to flashing. It provides that extra protection where the roof meets the chimney or vent protruding from the roof. These boots eventually wear out and get damaged from constant exposure to the elements and need to be replaced.

Water in gutter

Rain Gutter Failure

The rain gutter is an important part of your roofing system because it directs the water away from the roof so that less water can seep through the layers. Clogged or damaged rain gutters that can’t direct water off the roof often results in water seepage and leaking. This leaking often occurs where water settles into a valley on the roof.


Condensation isn’t technically a leak from the outside of your roof but is often mistaken as a leak because homeowners notice water dripping from the ceiling. Although it may look like the roof is leaking, it’s actually a result of condensation forming underneath the underlayment of the roof. Although this may not be a direct result of a damaged roof, it’s often the result of a roof or attic that hasn’t been properly ventilated. Addressing ventilation problems with the roof and attic can prevent attic condensation that eventually results in a mold problem in your home.

If you’ve noticed a leak in your home, be sure to call Riverside Home Services LLC at 410-956-3131 to find the cause and get it fixed.

If you are looking for a professional roofing contractor in the Annapolis area, then please call us today at 410-956-3131, or complete our online request form.