Ceiling Cracks And What They Tell You About Your Foundation

Significance of Ceiling Cracks

Quite frankly, knowing the difference between the different types of ceiling cracks can save your home. If nothing else, it can prevent unnecessary stress and anxiety. Sadly, most homeowners are completely oblivious to what their home’s cracks are telling them. This is the most dangerous situation you can be in.

As a little primer on the subject, it’s important to know that all homes and manmade structures are subject to some movement over time. This movement is caused by a number of factors, including weather fluctuations, settlement in the groundwork, moisture, and more.

While there may be other causes, ceiling cracks are virtually always related to one of two things. They are either the result of natural aging or structural damage. Obviously, the former is preferred – as it points to a simple repair need – but don’t be dismayed by the possibility of the second. Structural damage comes in many different forms. Some are less serious than others.

Causes of Ceiling Cracks

Now that you know the two main categories of ceiling cracks – aging or structural damage – let’s quickly investigate some of the specific causes and how they impact your ceilings.

1. Moisture

One of the most common causes is heavy moisture damage from above the ceiling. Depending on which floor of your home you’re talking about, this could mean moisture has seeped into the floor above the ceiling. If it’s the upper level of your home, this may signify damage to the roof.

“Common sources of moisture that create ceiling damage might be plumbing leaks from the floor above, originating from sinks, bathtubs or a plumbing vent,” says Benjamin Roussey, home improvement writer. “If you have a significant storm with high winds and excessive precipitation and you suddenly notice evidence of moisture in the ceiling, it’s likely that your home suffered roof damage.”

If there are major fluctuations in temperature in your area, this combination of moisture and drastic changes can lead to cracks. This is simple science. As the temperature becomes warmer, the building materials in your home – because they are exposed to excess moisture – will expand. Then, as the temperature drops, they will contract. The quick changes between hot and cold can place stress on the ceiling materials and joints, and lead to cracking.

2. Too Much Weight

Your cracked ceiling either has another floor above it or some attic space. Because of this, it’s possible that the space above the ceiling is bearing too much weight. For example, bathrooms on upper levels need very specific ceiling supports to carry the heavy weight of fixtures. If shortcuts were taken during construction, this could ultimately lead to sagging or cracking.

On a related note, it’s possible that your ceiling drywall is simply not sufficient for the other building materials used in your home. It’s also a possibility that seams, butt joints, and adjacent drywall sheets aren’t positioned in the right manner. Any number of these factors can accelerate the aging and deterioration of your ceiling.

3. Inferior Foundation

Finally, we come to the scary word: foundation! Don’t worry, though, it doesn’t have to be that intimidating. By understanding that ceiling cracks can be a symptom of foundation problems, you’ll ultimately be more aware of them in the future. This will hopefully let you catch problems in advance so you can take care of them before they become bigger problems.

An inferior foundation can cause an array of structural issues, including damage to the ceiling. While it may be hard to fathom how two aspects of the home which are so far away from each other can be so interconnected, remember that the integrity of the foundation affects every component of your home. Even the slightest movement or settling in the foundation can alter load bearing beams and cause small or large cracks.