Understanding Buckling Asphalt Shingles: Causes and Solutions

Buckling asphalt shingles are a common concern for homeowners. They not only affect your roof’s appearance but can also compromise its ability to protect your home. If left unaddressed, buckling can lead to leaks, water damage, and costly repairs. Understanding the causes and knowing how to fix them is the key to maintaining a strong and long-lasting roof.

At Roof Savers®, we help homeowners protect and preserve their asphalt shingle roofs through our innovative Renueit17® treatment and professional roof tune-ups. Let’s explore why shingles buckle and how our team can help bring your roof back to optimal condition.
What Causes Asphalt Shingles to Buckle?

Improper Installation
One of the most common causes of buckling shingles is poor installation. If nails are driven incorrectly or shingles are not aligned properly, they can begin to lift and warp over time. Even minor installation errors can lead to significant problems once the shingles start expanding or contracting. When shingles are not secured as they should be, they lose their protective seal, allowing moisture to penetrate the roof deck.
Poor Ventilation
Proper attic ventilation is essential for your roof’s health. Without it, heat and moisture can build up inside your attic. This trapped moisture causes the roof deck to swell, which pushes the shingles upward. Over time, this repeated movement creates visible buckles across the roof surface. Ensuring that your attic is properly ventilated not only prevents buckling but also extends the lifespan of your entire roofing system.
Moisture Buildup Under the Shingles
Moisture trapped beneath your shingles is another major reason for buckling. This can result from roof leaks, inadequate underlayment, or poor ventilation. When water seeps under the shingles, the roof deck begins to swell and shift. The shingles then lift and form visible ridges or waves. Addressing the source of moisture early helps prevent long-term structural issues and mold growth inside your home.
Roof Deck Movement or Warping
The wooden deck that supports your shingles can warp or shift due to excess moisture, heat, or structural movement. When the decking bends or expands, the shingles above it are forced out of alignment, resulting in buckling or curling. Over time, this movement can create gaps that allow water to penetrate, leading to potential leaks and interior damage. Regular inspections and maintenance can help detect early signs of deck movement before it worsens.
Aging and Natural Wear
Like all materials exposed to the elements, asphalt shingles age over time. Prolonged exposure to UV rays, heavy rain, and temperature changes causes shingles to lose their flexibility and strength. As they become brittle, they are more prone to cracking, curling, or buckling. If your roof is more than seven years old, it may already be showing early signs of wear. Routine maintenance and preservation treatments can extend its life and prevent expensive replacements.

How Roof Savers® Renueit17® Can Help

At Roof Savers®, we understand that buckling shingles can be concerning, but in many cases, replacement is not necessary. Our Renueit17® process and roof tune-up services are designed to address the root cause of shingle problems and help your roof perform like new again.

Comprehensive Roof Inspection
Our process starts with a detailed inspection to determine what’s causing the buckling. We look for installation errors, ventilation issues, or moisture buildup. Identifying the root cause helps us recommend the right solution for your specific roof.
Shingle Repair or Reseating
If the buckling is due to improper installation, our team can re-nail and reseal the affected areas. We secure loose shingles, reseat misaligned ones, and ensure that ridge caps are properly attached. This improves both the appearance and performance of your roof.
Roof Tune-Up and Preservation
Our roof tune-up includes resealing exposed nails, inspecting vents, and checking for moisture entry points. Once your roof is prepped, we apply Renueit17®, a powerful treatment that replenishes lost oils in your shingles. This restores flexibility, enhances weather resistance, and helps prevent further damage from heat, wind, and moisture.
Professional Recommendations and Repairs
If our inspection reveals structural or decking issues, Roof Savers® can assist with the necessary repairs to ensure your roof’s complete health. Our skilled team addresses both surface and underlying problems, making sure your roofing system stays strong, secure, and long-lasting. When needed, we also collaborate with trusted professionals for specialized work, giving you a seamless and worry-free experience from inspection to repair.

Choose Roof Savers® for Lasting Protection

Buckling shingles can be alarming, but with Roof Savers®, they don’t have to mean a full roof replacement. Our Renueit17® process strengthens your existing shingles, improves durability, and extends your roof’s lifespan by up to 17 years.

Protect your home, save money, and maintain your curb appeal with a service that works smarter and lasts longer.
Ready to fix your buckling shingles? Contact Roof Savers® today for a free inspection and discover how Renueit17®can bring new life to your asphalt shingle roof.