What is a Weep Hole and Why is it Important?

By February 19, 2020October 16th, 2020Home Inspection, Water Intrusion
What is a Weep Hole

A weep hole is a passage for water to escape a building envelope. You can see weep holes used in many areas like home siding and windows, but for the purpose of this article, we are going to focus on windows and brick.

Weep holes serve an important purpose of a home; they allow the home to “breathe” as some say. Since there are many chances for water to enter the home, weep holes allow for water exit.

Let’s look into how weep holes with brick siding works.

This is a weep hole located at the bottom of a brick exterior wall. In this case, if any water were to get behind the brick through tiny cracks in the mortar the water can exit as it falls to the bottom.

It is important not to seal these holes. If sealed, water may be forced into the home rather than outward. Also, these holes should be clear. As a homeowner, you should make sure vegetation is not in the way of these holes.

vegetation blocking a weep hole

Here is a perfect example of vegetation blocking weep holes on brick siding.

If the holes are blocked, how can you expect the water to exit and not enter your home?

What about weep holes on windows?

Pictured above, is an up close picture of a weep hole from the view of inside the window track. You can notice a black rectangle with a tiny crack of daylight coming through in the middle. The black rectangle is actually a flap that allows water to exit, but not enter! This is the weep hole on a window at work!

Keep in mind, there are different models of windows that use different weep hole methods rather than the above picture. Older model windows may not have weep holes at all. Feel free to comment below if you have a question about your home.

Keep these weep holes clear of debris, caulk, and paint to better protect your home from moisture! 🙂

If you are looking for other ways to prevent water intrusion read: How to Prevent Water Intrusion & Leaks.

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Aaron Shishilla

Author Aaron Shishilla

Aaron Shishilla is the youngest registered professional inspector in Florida. Coming from a family-owned home inspection company and now the marketing manager at Waypoint.

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