Common Causes of Roof Leaks

Roof leaks can cause significant damage to your home’s interior and structural integrity if not addressed promptly. At Roofing Unlimited, we discuss common causes of roof leaks and how homeowners can identify and resolve these issues to protect their homes.

Damaged or Missing Shingles

Shingles that are cracked, curled, or missing can expose the underlying roof structure to water infiltration. Over time, weather exposure and age can weaken shingles, making them susceptible to damage and leaks.

Faulty or Improperly Installed Flashing

Flashing is installed around roof penetrations such as chimneys, skylights, and vents to create a waterproof barrier. If flashing is improperly installed, rusted, or damaged, it can allow water to seep into the roof’s interior and cause leaks.

Clogged Gutters and Downspouts

Clogged gutters prevent proper drainage of rainwater and melting snow, causing water to pool on the roof’s surface. Over time, this standing water can seep under shingles or overflow into the roof structure, leading to leaks and water damage.

Condensation in the Attic

Improper attic ventilation or insulation can lead to condensation buildup inside the attic. Over time, this moisture can penetrate the roof decking and cause mold growth, wood rot, and eventually, leaks into the home’s interior.

Roof Penetrations and Seals

Areas where vents, chimneys, or satellite dishes penetrate the roof are vulnerable to leaks if seals around these penetrations deteriorate or become damaged. Checking and maintaining these seals is crucial to preventing water infiltration.

Ice Dams

In cold climates, ice dams can form along the roof’s edge, preventing melting snow from properly draining off the roof. As water backs up behind the dam, it can seep under shingles and cause leaks in the attic and interior spaces.

Aging Roof Materials

As roofing materials age, they become more susceptible to wear and deterioration. Over time, the protective granules on shingles can wear away, and the materials themselves can become brittle, making them prone to leaks during heavy rainfall or severe weather.

Impact Damage

Extreme weather events, falling tree limbs, or debris can cause impact damage to your roof, compromising its integrity and leading to leaks.

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