Why do cracks appear in houses?

Article by: Dr. Mireia Escudero | Last update: April 10, 2022
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The most common causes are the poor quality of the materials or their insufficiency during construction, which is what is called hidden defects. Another is the natural movement of the earth, tremors from the most imperceptible to earthquakes.

When to worry about cracks at home?

“A fissure can be more serious than a crack depending on your situation, but the most important thing to remember is the time factor. If a crack hasn’t increased in size for years, it shouldn’t be a concern. Now, if it does so in a short time, it is indicative that it is alive and must be evaluated.

What are the dangerous cracks in a house?

The most dangerous types of cracks are the following:

    Vertical cracks. Horizontal cracks. Zigzag cracks.

When to worry about a crack?

Location of the crack above its size or shape

If the crack affects a structural element, it will always be considered as a pathology that is at least important. The subsequent evaluation may increase the severity or even declare the building “unfit to live in”.

What causes cracks in the walls?

Causes of cracks in walls

Damage due to erosion, humidity, impact and wear that occur over time. Displacement or fracture derived from thermal stresses, shrinkage, overloads, etc. Structural deficiencies caused by poor load calculations, design errors or element corrosion.

40 related questions found

What are the most dangerous cracks?

DIAGONAL and/or X-shaped cracks, based on the horizontality of the floor or parallel to it, are more dangerous and therefore, the property must be evacuated and checked by a specialist.

How to know if a crack is dangerous?

If the cracks form a diagonal with respect to the floor; or are parallel to it, then they are highly dangerous, experts warn.

How to know if a crack is alive?

Fissure/living crack: These are those that are still forming, that is, they continue to grow because the action that created them is still present, exerting its efforts on the materials. While the fissure or crack is alive, no action should be taken except to stop its movement.

What is the difference between crack and fissure?

Fissure: it is a small opening, which is only superficial. Later in the post we tell you how to repair this type of super easy crack. Crack: It is a deeper opening of greater dimension that generally affects the entire thickness of the material (brick, ceiling, slab, etc.).

Which cracks are more dangerous horizontal or vertical?

horizontal cracks in walls are more dangerous than vertical cracks. This is because horizontal cracks are less likely to develop in walls. Vertical cracks in walls are usually related to the foundation.

How to know if a house is going to fall?

Eight small signs that your house may be at risk of collapsing

Cracks in the walls. … The walls are bulging. … Smells like humidity. …The paint in the bathroom is peeling. …The bathroom ceiling has stains. … The air conditioning has lost pressure. … The shower has lost pressure. … The lights flicker.

How big is a crack and fissure?

Thus, according to its opening width, it is common to differentiate a crack from a fissure when the opening is greater than 0.30 mm. obviously, when the openings do not exceed 0.30 mm, we can speak of cracks, a classification closely related to the way to repair them.

What are cracks?

A crack is a long, narrow opening caused by the separation of two materials. In geology two common types of cracks can be distinguished: shrinkage cracks and wedge cracks.

What are cracks?

Crack, fissure, in a wall.

How to determine a crack?

Cracks are considered when the width of the damage reaches up to 1 mm, while we can speak of moderate cracks when the width is 6 mm and severe cracks when this measurement is exceeded. Regardless of the size, we must always be attentive to its appearance.

What do horizontal cracks mean?

Horizontal cracks appear on the facades and exterior walls of buildings for the following reasons: Due to bending of the lower beams. By settlement of the structure on the ground. Because the water seeps through the walls and bursts the coatings.

What problem causes cracks in walls at 45?

If the crack is horizontal or extends at an irregular 45-degree angle, it could mean there is a more serious problem, such as a foundation shift or water damage. Therefore, if there are cracks in the wall, a professional should always be consulted.

What does cracks in the ground mean?

A GROUND FISSURE is a crack in the earth’s surface associated with subsidence of the earth. Both result from the removal or depletion of underground fluids, such as groundwater, or from the overuse of surface water.

How do cracks form in the earth?

Cracks occur because drying causes the earth to compress. As the water molecules evaporate, the surface tension between the remaining liquid and the solid particles increases, causing them to be pushed together.

What types of cracks exist?

Types of cracks:

    Non-structural cracks. For example, in painting: they are superficial. They affect only the paint layer. … Cracks in the structure: These cracks require a construction expert. They are those that directly affect beams, columns or a slab.

What is a concrete crack?

Cracks appear when water evaporates from the surface faster than the appearance of exudation water, creating rapid and premature drying and thus tensile stresses that the concrete cannot absorb, since it has not begun to set.

What is a crack in concrete?

Cracks in concrete are commonly the consequence of factors such as tensile stresses that exceed the stresses of the concrete, deficiencies in the reinforcing steel coatings, elements embedded in the concrete such as pipes, poor placement practices, and excessive loss of water that generate …

How do I know if my house has structural damage?

As not all of us are experts on the subject, to find out if there is any damage to the structure of your home, there are certain indicators of defects or damage that must be identified: Fissures or structural cracks. Landslides. Deformations.

How to know if a house is poorly built?

There are flaws that even a person without professional training can recognize: cracks in the walls or ceiling, unevenness, raised paving stones, damp spots, clogged or obstructed pipes, poor wiring and twisted beams or columns.

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