Generally, these cracks are straight because they follow the straight edge of the drywall tape along the drywall joint. Ceiling cracks tend to be fine and can generally be attributed to an insufficient amount of plaster used during the drywall installation.

What does a long crack in the ceiling mean?

Ceiling cracks along with sagging indicate a possible structural problem that needs immediate attention. One, big, continuous ceiling crack that goes across the ceiling and down a wall is almost certainly a structural issue. Contact a foundation professional right away for an inspection.

When should I be concerned about a crack in my ceiling?

Structural damage – Ceiling and wall cracks can be a sign of serious structural damage. This could be from subsidence or another ground movement. If the cracks are larger than 1/10 inch, they need to be looked at by a professional. Moisture damage – Moisture can also cause cracks in the ceiling or walls.

What do straight cracks in walls mean?

A: Wall cracks are fairly common in both new and older homes and are often the result of normal house “settling” that can quickly, inexpensively be remedied by re-taping the joints—the seams where the drywall panels meet.

How can you tell if a crack is structural?

As the name suggests, structural cracks occur because of poor construction sites, overloading or poor soil bearing.



Telltale signs of structural cracks in your foundation are:

  1. Stair-step cracks.
  2. Cracks on foundation slabs or beams.
  3. Vertical cracks that are wide at the bottom or top.
  4. Cracks measuring 1/8″ in width.


Are cracks in the ceiling normal?

These cracks are a normal part of home settling and can occur in ceilings, walls, and even floors. When it comes to spider web cracks, size is important. If the cracks are small, there isn’t much to worry about. However, if they are more than 1/16 inch wide, there could be a larger structural problem at stake.

How do you know if your ceiling is sagging?

a loud cracking sound in the ceiling; a sagging or dropping of the plasterboard sheeting and/or the cornice; and. visual cracking and/or small circles or blisters (nail pops) on the ceiling, which are a sign the plasterboard sheeting may be pulling away from the nails or screws.

What causes large cracks in ceiling?

Typically, plaster ceiling cracks have two causes: house settling and temperature or moisture fluctuations in an attic, which result in the expansion or contraction of framing members. Solution: Homeowners can fill these commonly occurring hairline cracks with new plaster and repaint the ceiling.

How much does it cost to fix ceiling cracks?

Cost to Repair a Ceiling by Type of Repair

Type of Repair Average Repair Costs (Labor Included)
Crack $100 – $500
Hole $100 – $600
Seam $150 – $500
Joist $150 – $700

What causes hairline cracks in ceiling?

Hairline cracks are thin cosmetic cracks that are caused by temperature or humidity fluctuation. These fluctuations can result in plaster shrinkage or swelling, creating small fissures. Hairline cracks are simply an eyesore and can be easily fixed with a new coat of paint.

How do I know if the cracks in my house are serious?

Severe – cracks up to 25mm wide could be a sign of structural damage and should be inspected and repaired by a professional. Very severe – any crack above 25mm in width indicates serious structural damage and will need major repair work, which could include underpinning and rebuilding.

What is a horizontal crack?

Horizontal cracks



They usually occur because of excessive outside pressure, such as shifting soil, water pressure, or other sheer forces to the foundation. Horizontal cracks are much more dangerous than vertical cracks because they can quickly lead to total foundation failure.

How can you tell if a house has structural problems?

Top 8 Signs of Structural Damage in Your Home

  • Cracks or Bulging on Walls and Ceiling. …
  • Soil Pulling Away from House Walls. …
  • Cracks in Chimney. …
  • Uneven Gaps on Windows and Doors. …
  • Sagging, Sloping or Cracking of Floors. …
  • Sagging Roof and Roof Leaks. …
  • Damp Subfloor. …
  • Crumbling Concrete/Brick.

How do I stop my ceiling from cracking?

Quote from the video:
Quote from Youtube video: So i'm going to cut a furring strip 15 inches and it's going to go the span of the crack. In the direction of the two arrows. So first thing i do is cut the furring strip gonna mark it at 15 inches.

When should I be concerned about drywall cracks?

Recurring cracks or drywall cracks larger than 1/8″ wide are usually signs of significant structural concerns that should be addressed as soon as possible. As the structural components of a home continue to settle, deflect, or deteriorate, the cracks will tend to lengthen and widen.

Can cold weather cause cracks in ceiling?

As the dryer winter air normally infiltrates the home the home itself can become dryer. This drying of the home air and the materials used to build the home results in the materials shrinking a bit and the small cracks will form. Usually the cracks will form where sections of drywall meet.

Can humidity cause ceiling cracks?

Large relative humidity and temperature changes may cause drywall cracks. These cracks are usually very thin in nature, are usually straight, do not have jagged edges and are not structural in nature.

Can keeping your house too cold cause mold?

Can mold grow in cold temperatures? The short answer is yes. Mold requires three things to grow: enough moisture, an adequate food source, and the right temperature.

How do you stop cracks from reappearing?

Quote from the video:
Quote from Youtube video: And today I've noticed some of the bigger cracks have been coming back. We're going to fill them but first we're gonna use a mesh chain hand me the mesh Tara.

What do settlement cracks look like?

Settlement cracks in walls can be vertical, horizontal or diagonal and in floors they aren’t necessarily straight. They can vary in width but, if crack widths are less than 2mm wide, they are unlikely to affect the structural stability of your home.

When should I be concerned about plaster cracks?

New Cracks Can Signal Foundation Problems



If your home is older and you see new cracks in the plaster, it might be a sign of a foundation issue rather than a cosmetic one. Check the basement or crawl space below for cracks. If you see them there, you might have a foundation issue that needs addressing.