Common Commercial Roofing Issues: Causes, Signs, and Solutions

Common Commercial Roofing Issues: Causes, Signs, and Solutions

May 16, 2024

Commercial roofs are subjected to a variety of harsh weather conditions and environmental factors, which can lead to a range of issues over time. Understanding these common roofing problems, their causes, signs, and solutions can help you identify and address them before they become major issues. Here are some of the most common commercial roofing issues:

1. Ponding Water:

  • Cause: Poor drainage or improper slope of the roof can lead to water pooling or ponding.
  • Signs: Standing water on the roof after rainfall or melting snow.
  • Solution: Improve roof drainage by installing additional drains or correcting the slope of the roof.

2. Roof Leaks:

  • Cause: Roof leaks can be caused by various factors, including damaged flashing, membrane punctures, or aging materials.
  • Signs: Water stains on interior ceilings or walls, damp insulation, or mold growth.
  • Solution: Locate and repair the source of the leak. This may involve patching damaged areas, replacing flashing, or installing a new roof membrane.

3. Blistering:

  • Cause: Blisters form when moisture becomes trapped between layers of roofing material and creates bubbles.
  • Signs: Blisters or bubbles on the surface of the roof membrane.
  • Solution: Repair blisters by cutting out the affected area, removing moisture, and patching or replacing the membrane.

4. Membrane Damage:

  • Cause: UV exposure, foot traffic, and weathering can cause the roof membrane to deteriorate over time.
  • Signs: Tears, cracks, or punctures in the roof membrane.
  • Solution: Repair damaged areas with patches or overlays, or consider replacing the membrane if the damage is extensive.

5. Roof Penetrations:

  • Cause: Penetrations such as vents, pipes, and HVAC units can create weak points in the roof.
  • Signs: Water stains around roof penetrations, or visible gaps or damage.
  • Solution: Ensure that penetrations are properly sealed and flashed to prevent leaks.

6. Poor Installation:

  • Cause: Improper installation of roofing materials or flashing can lead to premature roof failure.
  • Signs: Visible signs of poor workmanship, such as uneven seams or loose flashing.
  • Solution: Correct installation issues by hiring a qualified roofing contractor to inspect and repair the roof.

7. Lack of Maintenance:

  • Cause: Neglecting regular roof maintenance can lead to the accumulation of debris, clogged drains, and other issues.
  • Signs: Visible debris on the roof, clogged drains, or vegetation growth.
  • Solution: Implement a regular maintenance program that includes cleaning, inspection, and repair of any issues.
Parsons Roofing Commercial Roofing Common Commercial Roofing Issues3 1

8. Hail Damage:

  • Cause: Hailstorms can cause significant damage to roofing materials, including punctures, dents, and cracks.
  • Signs: Visible signs of hail damage on the roof surface, such as indentations or missing granules.
  • Solution: Inspect the roof after a hailstorm and repair or replace damaged materials as needed.

Addressing these common commercial roofing issues promptly can help extend the lifespan of your roof and prevent costly repairs down the road. Regular inspections, maintenance, and timely repairs are key to ensuring the long-term performance of your commercial roof. If you need assistance with identifying or addressing roofing issues, contact a professional roofing contractor for help.

Learn more about roofing…