Dealing With Flashing Failures in Commercial Roofs

February 7th, 2025 Commercial Roofing
Roof-flashing-failures

Commercial roofing systems are built to endure significant wear and tear, but one critical component often at risk of failure is the flashing. If not addressed promptly, flashing failures can lead to leaks, structural damage, and costly repairs. Understanding what causes flashing failures, how to identify them, and the steps to resolve and prevent such issues is essential for maintaining the longevity of your commercial roof. Here’s what our commercial roofers in Wilmington, DE, want commercial property owners to know about flashing failures!

What Is Roof Flashing and Why Is It Important?

Roof flashing is a thin metal material designed to direct water away from vulnerable areas of the roof. Commonly installed around chimneys, vents, skylights, and roof edges, flashing acts as a barrier to prevent water infiltration. For commercial buildings with large and complex roofing systems, flashing plays an integral role in ensuring water-tightness.

Flashing failures can compromise the roof’s overall integrity, leading to water damage, mold growth, and other significant issues. Regular maintenance and inspection of flashing are critical to avoiding these problems.

Common Causes of Flashing Failures

Improper Installation

Poor installation is one of the most common causes of roof flashing failure in commercial buildings. If your roof flashing is not properly installed, securely fastened, or adequately sealed, don’t be surprised when rainwater leaks through it.

Material Degradation

Due to exposure to the elements, flashing materials can corrode, crack, or warp over time. UV rays, very low or very high temperatures, and heavy precipitation can accelerate this wear and tear, leading to bigger problems. We can inspect your roof to assess the overall condition of these materials and recommend cost-effective next steps to protect your building.

Roof Movement

Commercial roofs often experience expansion and contraction due to extreme temperature changes. This movement can cause flashing to loosen or separate from the roofing materials, resulting in eventual water leaks.

Ponding Water

Standing water on a flat or low-slope roof can increase the risk of flashing failure, as prolonged exposure to moisture can compromise its durability.

Storm Damage

High winds, hail, heavy rainfall, and other weather conditions can dislodge your building’s flashing or cause excessive water damage, making it ineffective.

Neglect

Lack of regular maintenance and inspections can allow obvious signs of flashing issues to go unnoticed, eventually leading to major problems.

Signs of Roof Flashing Failure

Identifying signs of roof flashing failure early can save you from extensive repairs and expenses. Look out for the following signs:

  • Water Stains or Leaks: Water spots on interior ceilings or walls often indicate flashing issues.
  • Rust or Corrosion: Visible signs of rust or corrosion on metal flashing suggest material degradation.
  • Loose or Missing Flashing: Flashing that appears detached or has visibly shifted needs immediate attention.
  • Mold or Mildew Growth: Persistent moisture around the roof edges or seams can promote mold growth.
  • Cracked Sealant: The sealant used to secure flashing may crack over time, creating gaps for water intrusion.

Next Steps to Address Roof Flashing Failures

Conduct a Thorough Inspection

If your roof flashing fails or you notice leaks, a professional roofing contractor should inspect the roof to determine the extent of the damage and identify any underlying issues.

Address Contributing Factors

If flashing failure is due to ponding water, inadequate drainage systems should be upgraded or installed. Flexible flashing materials may be more suitable for roofs experiencing excessive movement.

Repair or Replace Damaged Flashing

Minor flashing issues, such as looseness, can often be repaired by resecuring or resealing the material. However, severely damaged or corroded flashing may require replacement.

Ensure Proper Installation

To serve its purpose effectively, flashing must be properly installed. Hiring experienced commercial roofers in Wilmington, DE, ensures that your new flashing is securely and correctly applied.

Choose Lane Roofing for Commercial Flashing Repairs

Dealing with damaged roof flashing requires expertise and attention to detail, and that’s where Lane Roofing comes in. With years of experience in the roofing industry, our commercial roofers in Wilmington, DE, provide reliable inspection, repair, and maintenance services tailored to the unique needs of business owners in our local area. We understand the vital role that this crucial component plays in protecting your building, and we’re committed to ensuring its integrity.

When you choose Lane Roofing as your commercial roofing professional, you’re investing in quality construction, top-tier materials, and unmatched customer service. Whether it’s a small fix or a complete replacement, we’ll deliver solutions that help you save money and protect your roofing system against future issues.

Your commercial property’s roof is a substantial investment, so don’t wait until your roof flashing fails to ensure its safety and functionality — or run the risk of making DIY installation errors. Contact us today to schedule a comprehensive roofing system inspection in Wilmington or the surrounding local area and ensure your building remains leak-free even in the most extreme weather conditions!

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