Asphalt shingles are designed to lay flat against your roof deck, creating a protective barrier against the elements. However, sometimes shingles can start to lift or curl, compromising the integrity of your roof and leading to potential damage. In this article, we'll explore how shingle lifting happens, its consequences, and what you should do to address the issue.

How Shingle Lifting Happens 

Shingle lifting can occur due to various factors, including:

  1. Improper installation: If shingles are not installed correctly, with adequate overlapping and nailing, they may be more susceptible to lifting. Improper nailing techniques, such as overdriving or underdriving nails, can also contribute to the problem.

  2. Age and wear: As asphalt shingles age, they can become brittle and less flexible, making them more prone to lifting or curling. Exposure to harsh weather conditions, such as high winds, heavy rain, or extreme temperatures, can accelerate this process.

  3. Inadequate ventilation: Poor attic ventilation can cause heat and moisture to build up beneath your roof deck, leading to shingle deterioration and lifting. This is particularly common in warm, humid climates.

  4. Manufacturing defects: In some cases, shingle lifting may be the result of a manufacturing defect, such as a weak adhesive or an incorrect asphalt mixture. If the issue is widespread and affects a significant portion of your roof, it may be covered under the manufacturer's warranty.

Consequences of Lifted Shingles 

Lifted shingles can lead to several problems, including:

  1. Water infiltration: When shingles lift or curl, they create gaps that allow water to penetrate your roof deck. Over time, this can lead to leaks, moisture damage, and even structural issues.

  2. Reduced energy efficiency: Lifted shingles can compromise your roof's ability to insulate your home effectively, leading to increased energy costs for heating and cooling.

  3. Decreased aesthetic appeal: Lifted or curling shingles can detract from the overall appearance of your home, lowering its curb appeal and potentially impacting its value.

What to Do About Lifted Shingles 

If you notice lifted or curling shingles on your roof, it's essential to take action promptly to minimize potential damage and costly repairs. Here are some steps you can take:

  1. Assess the extent of the problem: Determine how many shingles are affected and whether the lifting is localized or widespread. This will help you decide whether repair or replacement is the most appropriate course of action.

  2. Consult with a professional roofing contractor: Schedule an inspection with a reputable roofing contractor who can evaluate the condition of your roof and provide expert recommendations. They can help you determine the underlying cause of the lifting and suggest the most suitable shingle repair methods.

  3. Consider repair options: If the lifting is minor and localized, a professional roofer may be able to repair the affected shingles using adhesive or additional nails. However, if the damage is extensive or if your roof is nearing the end of its lifespan, a full replacement may be more cost-effective in the long run.

  4. Address underlying issues: To prevent future shingle lifting, it's crucial to address any underlying problems, such as inadequate ventilation or improper installation techniques. Your roofing contractor can help you identify these issues and recommend appropriate solutions.

Lifted shingles can be a serious concern for homeowners, as they can lead to water infiltration, reduced energy efficiency, and decreased aesthetic appeal. By understanding how shingle lifting happens and taking prompt action to address the issue, you can protect your home and extend the life of your roof. If you suspect that your shingles are lifting or curling, don't hesitate to consult with a professional roofing contractor who can provide expert guidance and help you choose the best course of action for your specific situation.