Are Ceiling Cracks Serious?

Ceiling cracks are usually caused by the structural movement of the house. The most common cause of this is the settling of the foundation. Settlement happens when the soil underneath the foundation settles or shifts. This can be due to a variety of reasons, such as changes in moisture content or compaction of the soil.

Ceiling cracks can be a serious issue for homeowners. If you are unsure whether or not your ceiling cracks are serious, you should consult a professional. In this guide, we will discuss the causes of ceiling cracks and what you can do to fix them.

What are Ceiling Cracks?

Ceiling cracks are cracks that run through the ceiling. They can be caused by a variety of things, but most commonly, they are caused by foundation settling.

If you have just moved into a brand new home, it is likely that the ceiling cracks are not serious and will eventually disappear on their own.

However, if you have been living in your home for a while and the cracks have not gone away, then there may be more serious structural damage.

What Causes Ceiling Cracks?

There are many different causes of ceiling cracks, but the most common are settling and water damage. Here are a few of the most common causes:

  • Settling - Ceiling cracks can be caused by settling, which is when the foundation or framing of your home shifts. This can be caused by earthquakes, floods, heavy rains, and other natural disasters.
  • Water Damage - Water damage is another common cause of ceiling cracks. Water can enter your home through leaks in the roof, windows, or doors. Once inside, it can cause the ceilings to crack and collapse.
  • Age - As your home gets older, the framing and foundation may shift, which can lead to cracks in the ceiling.
  • The floor above the ceiling is too heavy - If the floor above the ceiling is too heavy, it can put stress on the framing of the house and cause cracks.
  • Something is wrong with your drywall - If your drywall is not installed properly, it can cause cracks.
  • You have foundation problems - If you have foundation problems, it can put stress on the framing of your house.
  • You have moisture issues - If you have high humidity and moisture inside of your house, it can cause the drywall to swell and eventually crack.

12 Types Of Ceiling Cracks Homeowners Should Know

There are 12 types of ceiling cracks that homeowners should be aware of:

1. Vertical Cracks

Vertical cracks are the most common type of ceiling crack. They are typically caused by settling and can usually be fixed with a little bit of plaster or caulk.

2. Horizontal Cracks

Horizontal cracks are less common than vertical cracks, but they can be just as serious. Horizontal cracks are typically caused by water damage and will require a more serious repair, such as replacing the drywall.

3. Stair-Step Cracks

Stair-step cracks are cracks that follow the line of the framing. They are usually caused by foundation problems and will require a professional to fix them.

4. Diagonal Cracks

Diagonal cracks are also caused by foundation problems and typically require a professional.

5. Multiple cracks

If you have multiple cracks, it is likely that there is a more serious issue at hand. Multiple cracks are often caused by foundation problems or water damage.

6. Small, fine cracks

These cracks are usually caused by age or normal house settlement and can be fixed with a little bit of caulk or plaster.

7. Small hairline cracks

Hairline cracks or thin cracks are typically caused by age or thermal expansion and contraction. They are not usually serious, but you should still repair them to prevent further damage.

8. Crack Along The Ceiling Joist

A crack along the ceiling joist is often caused by something heavy being placed on the floor above the ceiling. This is fixed by placing a support beam under the floor.

9. Sagging Ceiling

A sagging ceiling is often caused by water damage or a heavy object being placed on the floor above the ceiling. It will require a professional to fix it.

10. Cracks between the wall and ceiling

Cracks between the wall and ceiling are typically caused by moisture damage and should be fixed as soon as possible.

11. Brown or yellow cracks

Brown or yellow cracks usually indicate that the plaster is drying out and could be caused by a number of factors, such as central heating, a lack of ventilation, or low humidity. These cracks are not usually serious but can be unsightly.

12. Spiderweb cracks

Spiderweb cracks are usually caused by age or thermal expansion and contraction. They are not typically a major issue, but you should still repair them quickly.

Are Ceiling Cracks Serious?

Yes, ceiling cracks can be serious. If you see a crack in your ceiling, it’s important to have it checked out by a professional as soon as possible. While some cracks are harmless and caused by things like settling foundations or normal wear and tear, others can be indicative of more serious problems.

For example, if the crack is accompanied by sagging or buckling, this could be a sign of a structural issue. Cracks that are longer than six feet or wider than a quarter-inch are also cause for concern.

Ceiling Cracks: When to Worry?

If you have ceiling cracks or wall cracks, you should consult a professional to determine if they are serious. Here are a few things to look for that may indicate a more serious problem:

  • The crack is wider than ¼ inch - If the crack is wider than ¼ inch, it may indicate more serious problems.
  • The crack is in the drywall - If the crack is in the drywall, it may be indicative of a moisture problem.
  • The crack goes all the way through the ceiling - If the crack goes all the way through the ceiling, it may be due to a structural issue.
  • There is water damage or mold present - If there is water damage or mold present, you might have a more serious problem on your hands.
  • The crack is in the shape of a circle - The shape of a circle is a sign of a roof leak.
  • The crack is in the shape of a “V” - If the crack is in the shape of a “V,” it may be indicative of structural damage.

How to Fix Ceiling Cracks: Step-by-Step Instructions

If you are comfortable fixing ceiling cracks yourself, here are some step-by-step instructions:

Step 1:
Clean the area around the crack

First, you will need to clean the area around the crack. This will help the repair process go smoother.

Step 2:
Apply tape

Next, you will need to apply special crack repair tape to the crack. This will help hold the repair in place.

Step 3:
Use a putty knife

Once the tape is in place, you will need to use a putty knife to apply the repair material.

Step 4:
Let it dry

After you have applied the repair material, you will need to let it dry. This can take anywhere from a few hours to a few days.

Step 5:
Touch up

Once the repair has dried, you will need to touch it up with some paint. This will help blend the repair into the ceiling. 

Ceiling cracks can be a serious problem or a minor annoyance. It is important to consult a professional to assess the damage and determine the best course of action. If the cracks are not serious, you may be able to repair them yourself.

What are the Best Fillers for Ceiling Cracks?

There are a few different fillers you can use for ceiling cracks. The best filler will depend on the type of crack you have.

Here are a few common fillers:

  • Caulk - Caulk is a good option for small hairline cracks.
  • Plaster - Plaster is a good option for larger cracks.
  • Patch material - Patch material is a good option for cracks that go all the way through the ceiling.
  • Silicone - Silicone is a good option for cracks in wet areas, such as bathrooms or kitchens.

No matter what type of filler you choose, make sure to follow the manufacturer’s instructions for the best results.

Frequently Asked Questions

1

How can you tell if a crack is structural?

A structural crack is a crack that goes all the way through the ceiling. It may be indicative of a serious problem, such as a sagging ceiling or roof.

2

Is ceiling drywall the same as regular drywall?

No, ceiling drywall is not the same as regular drywall. The ceiling drywall is thinner and lighter than regular drywall.

3

What is a bowed ceiling?

A bowed ceiling is a ceiling that has been bent or curved. It may be indicative of a structural issue.

4

Does load-bearing wall affect cracks in ceilings?

Yes, load-bearing walls can affect cracks in ceilings. If the load-bearing wall is not properly supported, it can cause the ceiling to crack.

5

Do plaster ceiling cracks need to be repaired?

Yes, plaster ceiling cracks should be repaired. Plaster is a porous material, so cracks can allow moisture to seep in, which can cause mold or mildew to grow.

6

Is drywall compound the same as a joint compound?

No, the drywall compound is not the same as the joint compound. Drywall compound is thicker and heavier than joint compound.

Ceiling cracks can be a serious problem or a minor annoyance. It is important to inspect your ceiling regularly for cracks, especially after a major weather event. If you notice any cracks, take action immediately to prevent further damage.

If the crack is small and not growing, you may be able to repair it yourself with caulk or spackle. However, if the crack is large or growing, you will need to hire a professional to assess the damage and recommend a course of action.