Active zone causes foundation soil problems, due to expansive clay soils that consist of small and negatively charged plates. Water molecules which are slightly polarized will be attracted when soil is in an active zone. This phenomenal will result in a large amount of change in volume as water is adsorbed.
The least soil depth that changes when it is combined with water content and soil heave that will occur due to the change in environmental conditions following the construction of a building is know as the depth of active zone for swelling.
Heavy Clay Soils
Heavy clay soil is dreadful to foundations, which lead to multiple foundation problems. Then when the soil loses water and dries out through desiccation, the opposite action happens to the volume. It shrinks. If you are seeing the soil around your foundation pulling back from the slab or basement, that’s why.
An experience foundation repair specialist is able to measure shrink-swell potential in expansive clay, and determine if it may lead to any foundation problems. They can also determine the index level, which the more potential for expansion when wet and shrinkage when dry, leading to foundation movement.
The active zone area is compiled with a shrink-swell clay soils type. Which shows us how deep down the movement of the soil is occurring. This movements differ from area to area. It has been determined that in Houston, Texas the active zone is typically 6 to 12 feet. This depth will have an effect in a property’s foundation, as well as it’s drainage.
Since Houston tends to get on and off droughts, it is considered an active zone, thus causing many homes to have foundation problems. It is important to be aware of signs of foundation problems, so it can be address quickly. If such signs of foundation problems are ignored, it may lead to more costly damages that lead to roof damage.
A top priority for structural integrity of a property is the foundation. Having a home in a seismically active zone tends to lead a small problem with a foundation to become much larger and much more costly problems down the road if it is address properly and quickly. It is not recommended to Postpone foundation repairs. Regardless of the repairs needed are small or big, Call Us today to schedule your free foundation repair estimate.