7 Types Of Foundations And Their Uses – Zing! Blog by Quicken Loans

Dry Wall Contractor


Cracks in your foundation can be scary and, we’re not going to lie, could indicate a big problem. However, they can also stem from normal wear and tear and end up being harmless.

A good rule of thumb is if the crack is less than ⅛-inch wide, it shouldn’t be cause for alarm; however, it may be best to consult a professional.

Let’s take a closer look at the different types of foundation cracks, what causes them and how to repair them.

  • Vertical cracks: Vertical cracks go up and down the foundation wall. They’re usually caused by the soil around the footing compressing or washing away, which causes that part of the foundation to settle a little lower. While these cracks are common and do not necessarily indicate a major structural issue, they’re known to allow water in through the wall.

Fix: The most common fix for this type of crack is a urethane or epoxy injection, which provides a flexible seal. It’s best to hire a professional home builder or contractor to repair these cracks.

  • Horizontal cracks: Horizontal cracks are the most serious type of foundation crack, and they run sideways across the wall. These cracks indicate a bowing foundation, which can lead to structural failure and cause the house to collapse. If you have horizontal cracks in your foundation, it’s imperative to have a licensed structural engineer inspect the wall and create a plan to repair it.

Fix: Some techniques to repair horizontal cracks involve bracing the wall with steel beams or braces, pulling the wall back with exterior anchors or installing a carbon fiber sheet over the wall.

  • Stair step cracks: Stair step cracks are vertical and horizontal, and are typically caused by soil pressure or settlement. They occur most often in brick and concrete block walls, and usually show up in the mortar joints, where two blocks meet. If the stair step cracks followed by the mortar joints, that probably doesn’t indicate a bigger problem.

Fix: You can usually fix these cracks by repointing the mortar. However, if the stair step cracks are in the concrete block itself, that can be a larger issue. You’ll need to have a structural engineer take a look to diagnose the problem and figure out how to fix it.

  • Shrinkage cracks: These are hairline cracks that come from normal wear and tear or shrinkage of the concrete or mortar. They won’t change in size nor do they threaten the integrity of your foundation. You won’t need to worry about repairing these cracks, but you do need to keep an eye on them.


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Source: https://www.quickenloans.com/learn/types-of-foundations

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