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Weep Holes

Weep holes are openings in walls that allow water that has penetrated the wall to escape. Find out if your home needs them.

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Every responsible homeowner should make sure that their home’s foundation is safe from water damage. A damaged foundation is not to be taken lightly. After all, your home is probably your biggest investment, and a faulty foundation can compromise the structural integrity of your entire home. In addition, foundation issues can lead to mold and pest infestations, which can impact the health of your loved ones. 

These are just some of the reasons why foundation health should be one of your priorities as a homeowner. While you have probably heard about sump pumps and drainage systems, it is possible that you haven’t come across the term weep hole. If you are wondering what these are and how they can protect your home from water and structural damage, keep reading. 

What Are Weep Holes? 

Does the thought of water collecting behind your foundation walls make you uncomfortable? Well, it should. It can easily lead to structural damage and problems with moisture. However, if your basement had weep holes, you could be at ease knowing that this kind of problem won’t pop up. 

Weep holes are, as the name suggests, holes that allow water to drain from within your foundation walls. When they are drilled, water exits through them and flows directly into an interior drainage system. Weep holes can alleviate pressure on your foundation walls, but they need to be properly sized to overcome surface tension. They are most useful during heavy rains or extremely humid days, when a larger amount of water tends to collect within the walls. 

Should I Drill Weep Holes? 

To find out whether you need these holes, you should find out which material was used to build your foundation. If it is made of concrete masonry units (CMU blocks), you should add weep holes to your waterproofing system. Even though these blocks form a strong structure, each of them contains hollow cells. When water leaks into the wall, it slowly fills out these cells and boosts the hydrostatic pressure. Eventually, this pressure will cause water to leak into the basement and damage the foundation. Although you cannot completely eliminate this pressure, with weep holes, you can lower it and keep it under control. The purpose of these holes is to efficiently drain water from the CMU blocks and direct it toward your drainage system. When it reaches the drainage system, the water will be directed to the sump pump, and through the discharge line, it will finally leave your home. 

You should also consider drilling weep holes if your basement frequently leaks, or you are just about to finish it. In addition, if you have decided to install an interior drainage system in your basement, you should add weep holes to your basement. 

Weep Hole Installation 

Weep holes are drilled towards the bottom of the wall. When the installation process is successfully completed, these holes will remove water from the walls and direct it toward the BasementGutter™ system. 

BasementGutter™ is an interior perimeter drainage channel designed to capture water seepage through walls and leaks along the wall/floor joint, as well as excess water coming through the weep holes. It is almost invisible when installed so it doesn’t affect visual aesthetics of the space. It can be installed much faster than an exterior drainage system. It features a clog-free design and is made of rugged plastic so it will never corrode or decay. 

Weep holes are not the most glamorous waterproofing solution, but they are an effective one. With these simple holes, you will alleviate pressure on your foundation walls and prevent damage from occurring. 

Are you satisfied with your waterproofing measures? Would you like to add weep holes to the waterproofing system? If so, do not opt for a DIY project. Instead, call professionals in North Carolina and be at ease knowing that the job has been successfully and properly done. Contact Tar Heel Basement Systems to schedule a free inspection. After a thorough evaluation of your home, you will receive a free quote and learn about all the ways you can keep water out of the basement and protect your foundation and home from any water damage. 

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Winston-Salem, NC 27103


3333 Air Park Road
Fuquay-Varina, NC 27526