The Constructor

What are the Signs of Foundation Heave?

Signs of Foundation Heave

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Foundation heave is the upward movement of the expansive soil layer after it is saturated with water. Controlling the signs and symptoms of foundation heave at an early stage is important to prevent further enlargement of heave pressure and avoid serious damage to the foundation and superstructure.

Common signs of foundation heave are cracked and bowed slabs, cracks in drywall, brickwork, doorframes, lifted sidewalks, tilted slab sections, etc. These signs are considerably concerning and create an unpleasant appearance. Additionally, they may interfere with the functionality of the building and disrupt the quality of life.

What are the Signs of Foundation Heave?

Some of the signs observed before a foundation heave are:

Figure-1: Cracks in Slab due to Foundation Heave
Figure-2: Drywall Cracks due to Heave are Very Evident and Considerably Thicker Than Simple Hairline Fractures
Figure-3: Off-Center Frames is a Sign of Foundation Heave


What are the signs of foundation heave?

1. Cracks in slabs
2. Sticky doors and windows
3. Bowing of slab
4. Lifted sidewalks and other flat work
5. Cracks on the interior face of walls

Do cracks develop on the exterior face of walls due to foundation heave?

Cracks on the exterior face of walls due to foundation heave are uncommon.

Do cracks due to foundation heave grow over time?

Cracks in drywall and brickwork, often in a zigzag form, at the top of the doorframe, and top and bottom of window frames. These cracks will grow thicker and longer over time.

How can soil moisture be used as a sign for foundation heave?

The increase in moisture of a soil layer below the foundation in recent years is a common sign of foundation heave.

Is it possible to live in a house with a foundation heave?

Yes, it is possible, and some occupants may not notice it immediately. However, the signs of foundation heave can disrupt the quality of life and even interfere with the functionality of the building.

Read More:

What are the causes of foundation heave?

What are the indications of problems in the foundations of residential buildings?

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