Most Common Foundation Issues in Atlanta: Soil Type

The Atlanta metro area is rapidly gaining a reputation as one of the premier places to live in the United States. However, beneath this allure lies a unique challenge many homeowners in the region face: dense, absorbent red clay soil.

This clay-rich soil, common throughout Georgia, can pose significant issues for foundations. Unlike looser, sandy soils, clay tends to retain water, leading to potential drainage problems and foundational shifts. 

In this article, we’ll discuss the implications of this soil type for homeowners, and provide tips to ensure they can properly address these concerns.

As clay soil expands when wet and contracts when dry, it can cause the foundation to settle unevenly. This movement leads to cracks in the foundation, walls, and floors of the home. Differential settlement can compromise the structural integrity of the building, resulting in costly repairs and potential safety hazards.

Georgia red clay soil’s poor drainage capabilities can cause water to pool around the foundation, leading to increased hydrostatic pressure against the walls. Over time, this pressure can cause the foundation walls to bow, crack, or even fail, necessitating significant repairs to maintain the home’s stability.

When clay soil absorbs water, it can expand significantly, pushing the foundation upwards. This upward movement, known as heaving, can lead to cracks in the foundation and other structural components of the home. Heaving can be particularly problematic during periods of heavy rainfall or when there are leaks in plumbing systems near the foundation.

During heavy rains, the top layer of clay soil can wash away, leading to erosion around the foundation. This erosion can create voids and gaps, weakening the support for the foundation and causing it to shift or settle unevenly. Addressing erosion requires proper grading and drainage solutions to protect the foundation from water damage and maintain its structural integrity.

Wall Anchors

Wall anchors can help stabilize homes affected by clay soil by counteracting the lateral pressure exerted on foundation walls by the expansive soil. Sturdy steel rods are driven through the foundation walls and into stable soil. They are then tightened over time to gradually pull the walls back into their original position. This method stabilizes the walls and also helps prevent further damage.

Foundation Piers

Foundation piers, such as helical piers or push piers, provide a robust solution for homes experiencing differential settlement due to clay soil. These piers are driven deep into the ground until they reach stable, load-bearing soil or bedrock. Once installed, they transfer the weight of the home from the “active zone” to the stable layers below, preventing further settling and lifting the foundation back to its original level.

Wall Braces

Wall repair systems are another effective solution for stabilizing foundation walls affected by the pressures of clay soil. Steel braces are anchored to the floor and the top of the wall, providing immediate support and preventing further inward movement. Over time, the braces can be adjusted to gradually straighten the walls, restoring their structural integrity.

If you’re a homeowner in the Atlanta area grappling with the challenges of clay soil around foundations, it’s time to take action. Clay soil foundation problems can lead to significant structural issues, potentially costing you thousands in added repair costs.

AquaGuard is here to help you understand how to stabilize your foundation on clay soil effectively. Contact us today for a free inspection and learn how our expert solutions can protect your investment and ensure your home stands strong for years to come.