Nail pops on an asphalt roof can be a common and frustrating issue for homeowners. In this article, we will dive into the technical details of asphalt roof nail pops, what causes them, and how to effectively address this problem.

What Are Asphalt Roof Nail Pops?

Nail pops occur when roofing nails that secure the asphalt shingles to the roof decking push upward, creating a small bump or visible indentation on the roof’s surface. These imperfections are not just an aesthetic concern; they can lead to roof leaks and more significant damage if left unaddressed.

Common Causes of Asphalt Roof Nail Pops

1. Improper Installation: One of the leading causes of nail pops is improper installation. When roofing nails are not driven in straight, they can create tension on the shingles, leading to eventual nail pops.

2. Thermal Cycling: Over time, the expansion and contraction of roofing materials due to temperature fluctuations can cause nails to work their way up and create nail pops.

3. Natural Settling: As a new roof settles, the materials may shift slightly, causing nails to rise and push against the shingles.

4. Suboptimal Roof Decking: In cases where the roof decking is uneven or damaged, nails may not grip securely, resulting in nail pops.

Diagnosing Nail Pops

Nail pops are typically easy to identify. Look for small bumps or indentations on your roof’s surface, often accompanied by loose or lifted shingles. During a visual inspection, it’s crucial to assess the severity and extent of the nail pops.

Addressing Asphalt Roof Nail Pops

Temporary Fix:

1. Safety First: Always prioritize safety when working on your roof. Use appropriate personal protective equipment, and avoid working on steep roofs without proper fall protection.

2. Hammer Down: For a quick and temporary solution, gently hammer the protruding nail back down. Be cautious not to damage the shingle or overdrive the nail.

Permanent Fix:

For a more durable and long-term solution, consider the following steps:

1. Remove Damaged Shingles: Carefully lift the shingles surrounding the nail pop, exposing the affected area.

2. Replace Nails: Remove the old, protruding nail and replace it with a new roofing nail or roofing screw that is long enough to penetrate the roof decking securely.

3. Secure Shingles: Reattach the lifted shingles with adhesive roofing cement to ensure a tight seal.

4. Inspect the Roof: After addressing the immediate issue, it’s essential to inspect the entire roof for other potential nail pops and address them in the same manner.

Prevention

Preventing nail pops begins with proper installation. When installing an asphalt roof, ensure the following:

1. Use the Right Nails: Choose high-quality roofing nails of the appropriate length and material for your roofing project.

2. Drive Nails Correctly: Ensure that nails are driven in straight and flush with the shingle, avoiding overdriving or underdriving them.

3. Proper Roof Decking: Ensure your roof decking is in good condition and properly prepared for shingle installation.

4. Quality Shingles: Invest in quality asphalt shingles that are less prone to nail pops.

By following these guidelines, you can reduce the likelihood of experiencing asphalt roof nail pops.

In conclusion, asphalt roof nail pops are a common roofing issue, but they can be effectively managed and prevented with the right knowledge and maintenance. Regular inspections and addressing any nail pops promptly will help maintain the integrity and longevity of your roof, ensuring it continues to protect your home.