How to Fix Window Leaks on High Rise Buildings

Commercial buildings are susceptible to leaks in their windows. These leaks can cause a range of problems, from water damage to decreased energy efficiency.  

In this article, we will explore the common causes of leaks in commercial windows and discuss potential solutions for preventing and addressing these issues. Whether you are a building owner or manager, understanding the reasons behind window leaks can help you take the necessary steps to keep your property in top condition. 

What Causes Leaks in Commercial windows 

 Commercial windows can leak for a variety of reasons, but here are some of the most common causes of leaks. 

Type of Sealant 

One common issue is the type of sealant used around the window. Urethane sealants are commonly used, especially in new construction.  However, urethane is prone to degradation. It can often shrink and crack with exposure to sunlight and the elements, leaving cracks in the seals. 

Gaskets 

Window gaskets hold your window glass in place and also help seal the window. They are designed to prevent water from entering the building, but over time they can shrink and lose their effectiveness. 

This is often most visible in the corners of a window. A shrunken gasket will be shorter so you’ll typically see that they no longer meet at the corners. This can lead to leaks where spacing has been created between the existing gaskets. 

Wind and Rain 

Of course, leaks will be most obvious when it rains. Even more so when it rains and is windy.  

The wind will push the rain through any gaps in the seals, pushing water straight into the building. 

Even if your window is perfectly sealed, high levels of rain and wind can overwhelm your window’s weep holes. Weep holes are designed to help drain any water. However, if there is too much water present or the holes are blocked, it can back up and push rainwater into the building. 

Preventing Leaks in Commercial Windows 

Window leaks aren’t always avoidable but there are a few things you can do to minimize the risk of leaking. 

Silicone Sealants and Wet Sealing  

Silicone is a more durable and long-lasting material as a sealant, compared to urethane. It can provide a stronger seal that is less likely to fail and can last as long as 20 or 30 years. 

Additionally, a technique called "wet sealing" can be used to further reinforce the seal and prevent leaks. Wet sealing involves applying a sealant to the window frame, which helps to fill any gaps or cracks that may have formed over time. 

Proactive Maintenance  

 Another important factor to consider when addressing commercial window leaks is the age of the building. For example, sealants are often only good for 10 years after construction. 

So if your building is coming up on that milestone, it might be time to budget for window maintenance and sealant replacements. Even if you’re not experiencing any leaking yet. 

You should also plan for regular inspection of your windows for signs of wear or damage. 

Benefits of Regular Window Maintenance and Repair 

Window maintenance can feel costly, but it is important to address leaks as soon as possible. Leaks cause damage to the building structure and its contents, which can often cost much more than simply repairing the window.  

Even if you can’t see water seeping in, it doesn’t necessarily mean a leak doesn’t exist, especially if you aren't getting a lot of rain. Even small cracks or damages in your windows can allow heat or air conditioning to escape, upping your energy costs. 

A commercial waterproofing expert, like Performance Waterproofing, can help assess all your windows and recommend any necessary repairs. We can quickly diagnose any issues as well as help you identify potential issues, to help you budget for repairs in the future. 

By getting all your windows reviewed, you can feel confident knowing that you’re catching any issues before there is further damage. Plus, it can save you the frustration of having to call a contractor to fix each of your windows one at a time. 

Performance Waterproofing is the leading expert in waterproofing services for commercial properties in Tennessee, Georgia, Alabama, and Kentucky. Contact us for all your waterproofing needs today.