Roof Leak Repair: Tried-and-Tested Tips to Prevent Leaks in Your Commercial Building February 27, 2020 – Posted in: Blog

One of the biggest responsibilities that come with owning a commercial building is maintenance. And the maintenance tasks that we personally find very challenging to resolve are usually those that have something to do with roof water damage. Are you having trouble with roof leak repair as well? Then don’t worry, because, in this article, we are going to share some solid tips with you on how to repair roof leak and more. Let’s get started!

Causes of Roof Leaks

First of all, we’d like to share with you the different causes of roof leaks. Here they are:

Damaged Roofing Systems

The most severe cause of a roof leak has got to be when your roof system gets damaged. This usually happens during weather disturbances when the gusts of wind are strong enough to dislodge even your AC unit that can then cause even more damage.

Roof Vents

Here’s a roof issue that we put in high priority: damage to roof vents. That’s because they can affect the air quality inside your commercial establishment that can even lead to health issues!

Roof vents usually get damaged after a strong storm, when nature’s forces lead to the blockage of your vents with debris, compression due to fallen heavy objects (like tree limbs), or worse, the disconnection of vent pipes or ducts.

Commercial roof vents

Excess Moisture

Another roof issue that can lead to poorer indoor air quality is excessive moisture that can lead to the development of mold and wood rot.


Here’s a common type of roof damage: holes. Holes happen all the time and are usually caused by different reasons. Well, whatever it is that caused it, though, it is always a good idea to patch the hole up the moment you discover it.

Age of Roof

Sometimes there’s no external cause or weather disturbance. There are times when your roof just gets damaged over time as it ages.

Attic Condensation

There are also times when the damage didn’t originate from the roof itself, but it actually came from the attic. Make it a point to regularly inspect your attic for excessive moisture and mold growth.

Improper Sealing of Valleys

Improper sealing of valleys is commonly caused by human error. Most of the time, your sealing was simply not done properly. However, there are times when it can be caused by the winter season as well since ice can erode your sealing as well.

Commercial roof repair

Extreme Weather

As we have mentioned above, extreme weather is a HUGE cause of roof damage. Usually when the roof leaks in heavy rain, then you know that its strong winds and downpour might have something to do with it. Aside from rains, you should also watch out for wind damage and hail damage.

Commercial Roof Inspection

Wow, there is a lot of factors that can cause roof damage. So, do you suspect that your roof has one as well? Give yourself some peace of mind and sign up for a commercial roof inspection service.

Elements to Inspect

To give you an idea, here are the different elements that professional roof inspectors usually look into:

  • Supporting Structures

One of the first things that your inspector would probably look into is the supporting structures of your roof. Are they intact, are they still structurally sound, are they not infested with mold or animals that have decided to build their nest there

  • Roof Covering Condition

Next, they’ll inspect the roof covering itself. Has it been damaged due to the storm that has passed or the strong winds that have been blowing recently?

  • Roof Edging

Did you know that the edges of your roof are some of the most prone parts to damage? That’s because moisture can naturally collect there that can then lead to wood rot and mold growth.

Commercial roof edges

  • Roof Penetrations

Most of the time, the holes you’ll find in your roof are caused by your roof getting damaged. But sometimes, it is a necessary part of your roof to accommodate features of your commercial establishment like chimneys, exhaust fans, solar panels, and more. The problem, though, is that when they are not installed properly, they can cause serious damage to the integrity of your roof.

  • Expansion Joint Covers

Expansion joints are not usually required in small residential properties, but they can be necessary for larger establishments like yours. To protect these joints, though, you will need to install expansion joint covers: something that an inspector should also look into when assessing your roof damage.

  • Pitch Pans

If you have roof penetrations installed, then you also probably have pitch pans in place to protect them. However, since they serve to prevent water penetration and damage, this means that they are constantly exposed to this type of damage as well.

  • Roof Drains

Do you know the part of your roof that ensures no water is collected, though? Roof drains. Unfortunately, they can also get damaged for different reasons as well.

  • Lightning Protection Systems

Kudos for thinking ahead and installing a lightning protection system to prevent structural damage to your commercial establishment in the event of it getting struck by lightning. The problem is, there’s a possibility that not all the damage can be deterred especially if your roof’s all wet with rain. That’s why professional inspectors make a point to check this roof feature as well.

  • Evidence of Ponding

Finally, if a roof inspector sees evidence of standing water, otherwise known as “ponding”, then it’s a sign that something’s not right. Why is the water not getting drained out?

Commercial roof inspection

How Often Should You Inspect Your Commercial Roof?

It’s always smart to get your roof checked after a severe weather disturbance like a hailstorm or a hurricane. However, aside from that occasional inspection, you should still schedule a commercial roof inspection once every six months just to be sure. You can do it as part of your facility maintenance routine.

Roof Leak Repair

But…what if the inspector discovers an element of your roof damaged? What then? The first few things that we recommend you should do is to assess how serious the damage is, check your roof system’s warranty, and of course, contact your insurance agent.

You can always seek the of a professional contractor to have it repaired. In the meantime, here are the things that you can do in order to minimize the damage:

Get water damage equipment

There are three main types of water damage equipment that you can get in order to fix the damage that has been done, especially in your establishment’s indoor air quality. First, you should get a moisture meter in order to accurately determine the exact parts of your building that have surface dryness…or the lack of it. Next, you can use commercial dehumidifiers for moisture elimination. And finally, you will need an air scrubber equipped with a HEPA filtration system in order to get your indoor air quality up to par again.

Prevent further humidity

Using a dehumidifier is great, but there are other steps that you can do to prevent humidity like improving the ventilation of your building by opening all your windows.

Commercial roof repair

Remove the existing mold

There are two ways in order to remove the mold that has accumulated in your building: you can either hire a professional mold remediation team or perform the cleanup on your own using a bleach mold cleaner. Just wear the proper safety gear should you choose to DIY the process.

Revert the damage to property

Finally, you can start salvaging the property that has been damaged including important documents, books, textiles, antique items, and more. Fortunately, there are companies that offer freeze-drying services that can eliminate bound water from your property.

Roof Leak Repair Cost

The average cost of roof repair, at least for residential properties, is around $800-900. You can get a rough idea of how much your establishment’s roof will cost based on the size, materials, and labor involved.

Fortunately, though, most insurance policies cover roof repairs so make sure to double-check your coverage with your agent. Good luck!