When water gets under shingles on a roof and causes them to curl up at the bottom edge, it typically indicates a problem with the roof's structure or installation. Here are some potential consequences and issues that can arise from this situation:
Water damage: The primary concern is water infiltration. When water seeps under the curled shingles, it can penetrate the underlying layers, such as the roof deck and underlayment. Over time, this moisture can lead to rotting of the roof materials, including the decking and supporting structures. It may also result in water damage to the interior of the home, such as ceiling stains, peeling paint, or even structural damage.
Mold and mildew growth: Moisture trapped under the curled shingles can create a conducive environment for the growth of mold and mildew. These microorganisms thrive in damp conditions and can further deteriorate the roofing materials. They can also pose health risks to the occupants if spores are released into the indoor air.
Decreased energy efficiency: Curled shingles can compromise the roof's ability to provide proper insulation and temperature regulation. Gaps and spaces created by the curled edges allow air to enter and escape, leading to increased energy consumption for heating and cooling. This can result in higher utility bills.
Reduced lifespan of the roof: Curled shingles are more susceptible to wind damage. As they lift and curl, they become more likely to be torn off during storms or high winds. This can lead to further roof damage and necessitate costly repairs or even a complete roof replacement.
Aesthetics and property value: Curled shingles can significantly diminish the curb appeal and visual appeal of a home. This may negatively affect the property value and make it less appealing to potential buyers.
When water has caused shingles to curl up at the bottom edge, it is crucial to address the underlying issue promptly. Contacting a professional roofer to inspect and repair the roof is recommended to prevent further damage and protect the integrity of your home.