Foundation cracks are a common problem that many homeowners face. Vertical foundation cracks can be a bit more concerning as they generally also have water penetration issues. In this blog post, we’ll explore what vertical foundation cracks are, what causes them, and how to address them.

Vertical foundation cracks
Image courtesy InterNACHI

What are vertical foundation cracks?

Vertical foundation cracks are cracks that run straight up and down along a foundation wall (see image above). They are typically wider at the top and narrower at the bottom, resembling a V-shape.

What causes foundation cracks?

Several factors can cause vertical foundation cracks, including settling, soil erosion, lateral thrust, and hydrostatic pressure. Settling occurs when the ground beneath the foundation shifts, causing the foundation to move and crack. Soil erosion can also cause the ground beneath the foundation to shift and move, leading to cracks. Hydrostatic pressure is another common cause of vertical foundation cracks. This occurs when water builds up around the foundation, putting pressure on the walls and causing cracks to form.

How to address foundation cracks

If you notice a vertical foundation crack, it’s essential to address it promptly to prevent further damage. Here are some steps you can take to address foundation cracks:

  1. Inspect the crack: First, inspect the crack to determine its size and severity. If the crack is less than 1/4 inch wide, it’s likely not a significant concern. However, if the crack is wider than 1/4 inch, it’s important to take action.
  2. Check your basement: Check the basement in the area of the crack for signs of water penetration, staining or mold.
  3. Contact a foundation repair specialist: If the crack is wider than 1/4 inch or if you have water issues, contact a foundation repair specialist to evaluate the damage. A professional will be able to determine the cause of the crack and recommend the best course of action.
  4. Address the cause of the crack: Once you know the cause of the crack, address it to prevent further damage. This may involve repairing a plumbing leak, fixing rain gutters or downspouts , or correcting a drainage/grading issue.
  5. Repair the crack: Depending on the severity of the crack, different repair options may be available. For smaller cracks, a simple epoxy injection may be all that’s needed. For larger cracks, more extensive repairs may be necessary.

Conclusion

In conclusion, vertical foundation cracks should not be ignored. If you notice a vertical foundation crack, it’s essential to address it promptly to prevent further damage. Contacting a foundation repair specialist is the best course of action to determine the cause of the crack and recommend the best repair options.

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