What Is the Clay Bowl Effect?

Most homeowners don’t hear the term “clay bowl effect” until they start to notice things going wrong throughout their basement or the rest of their home. What does the effect entail, and is there a way to prevent it from impacting the structural integrity of your basement?

Defining the Clay Bowl Effect

The term “clay bowl effect” refers not to the shape of your foundation or basement but rather to the state of the earth beneath your home after you’ve excavated and backfilled said foundation. Unfortunately, there’s no way to establish your home’s foundation without first digging it out and then backfilling the space that’s left behind.

When a construction team replaces that soil, it will be looser than it was prior to your home’s construction. As such, your foundation and basement are going to be more vulnerable to water damage simply because the soil beneath your home will be more porous. If you don’t have gutters or a downspout on hand, rainwater or snowmelt can rush straight for your foundation and basement, where it can wreak havoc on your home’s newly installed structural supports.

Avoiding the Clay Bowl Effect

The effect that the clay bowl effect will have on your home will vary based on the composition of the soil in your area. That said, it’s all but impossible to avoid the effect entirely. No matter what, a construction team has to dig out a hole into which they can pour your foundation and basement.

That said, there are steps you can take early on in a home’s construction that can help you get ahead of the damage that the clay bowl effect can cause. If you choose to waterproof your home shortly after it is built and to stay on top of any structural changes, it’s unlikely you’ll have to contend with any unwanted seepage or damage outside of extraordinary circumstances.