Commercial roofing systems are designed to withstand various weather conditions and protect the building’s structure. However, even the most durable roofing materials require occasional repairs due to natural wear and tear, environmental factors, or unexpected damage. Understanding the types of roof repairs your commercial property may need—and knowing when to address them—can help you maintain a secure and cost-effective roofing system. In this guide, we’ll explore the most common commercial roof repairs, their purposes, and the signs that indicate it’s time for professional attention.
1. Leak Repairs
Leaks are one of the most common issues in commercial roofing, and they can cause significant damage if not addressed promptly. Water intrusion can lead to mold growth, insulation damage, and structural weakening, so identifying and repairing leaks is essential for maintaining the integrity of your roof.
Signs of Roof Leaks
- Water Stains on Ceilings and Walls: Discoloration on interior surfaces often indicates that water has entered the building.
- Visible Drips or Puddles: During heavy rain, you may notice drips or pools of water inside, particularly near windows, walls, or vents.
- Musty Odors: Leaks can lead to moisture buildup, which causes mold and mildew. A musty smell often accompanies a hidden leak.
When Leak Repairs Are Needed
Leak repairs should be conducted as soon as you notice any of the signs mentioned above. Quick action minimizes water damage and prevents the problem from worsening. A professional roofing company, such as Lapeyre Construction, can identify the source of the leak, fix damaged areas, and help ensure your commercial property remains dry and secure.
2. Ponding Water Repairs
Ponding water occurs when rainwater collects on flat or low-slope roofs and fails to drain properly. This standing water can lead to serious issues over time, including membrane deterioration, mold growth, and even structural damage due to the additional weight on the roof.
Causes of Ponding Water
- Clogged Drains: Debris like leaves, branches, and dirt can block roof drains, preventing water from flowing off the surface.
- Improper Slope Design: Some commercial roofs lack the proper slope required for efficient drainage, causing water to pool in certain areas.
- Membrane Deformation: Over time, roofing membranes can warp or sag, creating low spots where water collects.
When Ponding Water Repairs Are Needed
If you notice water collecting on your roof more than 48 hours after a rainstorm, it’s time to address the issue. Ponding water that remains for extended periods can degrade roofing materials and contribute to leaks. Repairs may include installing additional drainage systems, reinforcing the slope, or repairing warped sections of the roof.
3. Flashing Repairs
Flashing is a critical component of commercial roofing systems, used to seal areas around roof features like chimneys, vents, skylights, and HVAC units. Flashing prevents water from entering where these features meet the roof’s surface. Over time, flashing can become loose or corroded, creating gaps where water can seep in.
Signs of Flashing Damage
- Visible Gaps: Gaps between the roof and flashing are often noticeable from the ground or during routine roof inspections.
- Rust or Corrosion: Flashing made of metal can rust or corrode when exposed to moisture, leading to weakened areas that may allow leaks.
- Loose or Bent Sections: Strong winds or storms can cause flashing to bend or pull away from the roof, leaving exposed areas vulnerable to water intrusion.
When Flashing Repairs Are Needed
Flashing repairs should be conducted whenever you spot loose, damaged, or corroded flashing on the roof. Prompt repairs prevent water damage and help maintain a tight seal around roof features. In many cases, flashing issues can be addressed quickly by replacing or resealing affected sections.
4. Membrane Repairs
Many commercial roofs, especially flat roofs, are protected by a membrane made from materials like TPO, EPDM, or PVC. Over time, these membranes can develop cracks, blisters, or punctures due to exposure to UV rays, temperature fluctuations, or mechanical damage.
Causes of Membrane Damage
- UV Degradation: Prolonged exposure to sunlight can cause the membrane to deteriorate, leading to cracking and brittleness.
- Foot Traffic: Commercial roofs often house HVAC units and other equipment that require maintenance, increasing foot traffic and the risk of punctures or tears.
- Temperature Extremes: Rapid temperature changes can cause roofing materials to expand and contract, resulting in cracks or blisters in the membrane.
When Membrane Repairs Are Needed
If you notice visible damage to the roof membrane, such as cracks or bubbles, it’s essential to have them repaired as soon as possible. Damaged membranes can compromise the roof’s waterproofing capabilities, leading to leaks and other issues. Regular inspections can help detect membrane damage early, allowing for timely repairs.
5. Roof Coating Repairs
Roof coatings are often applied to commercial roofs to improve waterproofing, enhance energy efficiency, and protect the roof from UV rays. However, these coatings can wear down over time and may need to be reapplied or repaired to maintain their effectiveness.
Signs of Worn Roof Coatings
- Fading or Discoloration: A faded or discolored coating may indicate that the roof is no longer protected from UV rays.
- Cracks in the Coating: Cracked or peeling roof coatings can leave the underlying materials exposed, reducing the roof’s ability to repel water.
- Pooling Water: If water is pooling on areas with roof coatings, it may be a sign that the coating has degraded and lost its protective qualities.
