Commercial Roof Repair

Nobody wants to see water leaking through their roof, especially because most of the time you may not know where it's coming from.

Knowing the source of the leak is the first step in getting it repaired. Luckily WNC Roofing has an 8-Point Inspection Checklist, so no points of entry are overlooked.

Owning and maintaining a commercial roof is a big responsibility; if you have encountered any of the following issues, contact WNC Roofing for immediate services.

So, what could be the main cause of that roof leak?

Improper Installation

Roofing requires training. You'll need a professional to determine if a repair or a replacement is needed because certain material calls for different installation methods, some more labor-intensive than others.

An improper install will create problem areas such as air pockets, ponding water, distressed membrane, and ultimately interior damage to your building.

Drainage Issues

Standing water is an unnecessary amount of weight on your roofing system, which leads to a higher risk of material or structural damage. As the water wears down the material, water begins to penetrate the seams. Signs of pooling could be areas of dirt left behind by the now evaporated water, clogged drains or a sagging roof.

A Preventative Maintenance Plan will assure you that your roof's drains, scuppers, gutters, and downspouts are clear and flashed properly. Maintaining a roof will extend its life, as well as save you money from needing a costly commercial roof replacement.

Membrane and Material Damage

All roofing systems begin to deteriorate over time, even with maintenance and repair work. However, there could be other factors that damage your system such as foot traffic, harsh weather, high winds, debris, or temperature fluctuations.

When the membrane and material is damaged, expect to see cracks, splits, shrinkage, blistering, holes, etc. The membrane is the essential, waterproof part of your roof, so it MUST be repaired to prevent further damage.

Flashing protects your roof membrane's edges. It is very common for Flashing to become loose, or expand and contract with weather. This creates an entry point for leaks, gaps, or moisture damage, eventually leading to a necessary commercial roof repairs.

Improper Sealing

The goal with Commercial Roofing is to make your roof as waterproof as possible. However, there are other points of entry that can go unchecked:

  • HVAC
  • Pipes
  • Drains
  • Vents
  • Gas Lines
  • Skylights

Each area must be monitored and sealed professionally because they are vulnerable.


The average lifespan of a roof is about 15 to 20 years until you will need a Commercial Roof Replacement; roof life can vary based on the type of roof installed, and the amount of maintenance performed.

Commercial building codes allow up to 2 roofing systems installed. After that, you must tear off and install a new system.


We're here when you need us: Inspect, Maintain, Repair, Replace.

Give us a call for your commercial roofing needs!
(800) 704-7765

Safe Smart Professional. - WNC Roofing

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