Are Cracks Normal In New Foundations?

by | Last updated on January 24, 2024

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Even new concrete foundations have

some cracks

. The cracks are often caused by the hardening or curing process. … Cracks will often show up on the exterior and interior of a foundation. Cracks that are more than an 8th of an inch wide usually mean that the foundation has been bent.

When should I be worried about foundation cracks?

While you’re under your

house in a basement or crawlspace

, you’re looking for any cracks or signs of damage. If you find long horizontal cracks, leaning, or bowing walls, you are in dangerous territory. If the foundation walls are made of concrete block, the cracks may look like stair-steps.

Are cracks in concrete foundations normal?

Are foundation cracks normal?

Yes

, and they usually are no reason to panic. In fact, most cracks in a poured concrete foundation are a natural result of foundation settlement and shrinkage of the concrete during the curing process and can be easily fixed or simply left alone.

How do you know if a foundation crack is serious?


Foundation cracks that run sideways (horizontally)

are the most serious type of crack to look out for, as they can signal serious damage to your home’s foundation and structural integrity.

How can you tell if a crack is structural?

  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.

Should I worry about hairline cracks?

Hairline cracks of less than one millimetre in width or

slight cracks of between one and five millimetres are generally not a cause for concern

. If you begin to notice these, they can generally be filled and painted over as they’re a crack in the plaster but not in the wall itself.

What type of foundation cracks are bad?

Of all the foundation cracks,

the stair-step cracks

are the most dangerous. They normally run in a diagonal line and assail concrete blocks and brick foundations. Cracks start in a joint or at the end of the wall then taper down or climb up. Like all diagonal cracks, they’re caused by differential settlement.

How do you fix cracks in concrete foundation?

  1. Step 1: Repair a Foundation Crack With an Epoxy Sealer. …
  2. Step 2: Block Out the Injection Ports. …
  3. Step 3: Mix the Epoxy Sealer. …
  4. Step 4: Attach the Injection Port. …
  5. Step 5: Spread Sealer Along the Crack. …
  6. Step 6: Inject the Epoxy into the Crack. …
  7. Step 7: Seal Up the Injection Ports.

How do I fix cracks in my foundation?

Dampen the crack by misting it with water from a spray bottle then push the

hydraulic cement mixture

into the crack with a putty knife. Let this dry for an hour or two then add another layer of cement mixture over the crack. Use a trowel to make the cement patch level and smooth with the wall surface.

Is it worth fixing a foundation?

Foundation repairs tend to be a pretty expensive home repair. … Since foundation repairs are generally not covered in your home insurance, it can be hard to tell if the cost is actually worth it. While it really depends on what your end goal is, the answer is typically yes:

foundation repairs are worth the cost.

What are the signs of a bad foundation?

  • Foundation Cracks, Wall/Floor Cracks and Other Types Of Fractures: …
  • Foundation Settling Or Sinking. …
  • Foundation Upheaval. …
  • Doors That Stick Or Don’t Open And Close Properly. …
  • Gaps Around Window Frames Or Exterior Doors. …
  • Sagging Or Uneven Floors.

Is foundation repair covered by homeowners insurance?


Homeowners insurance will cover foundation repair if the cause of damage is covered in your policy

. But damage caused by earthquakes, flooding, and the settling and cracking of your foundation over time are not covered.

What is considered a structural crack?

Identifying Structural Cracks

A structural crack can go in any direction, vertical, horizontal, or even zig–zag. But, structural cracks are

generally wider than 3mm and will extend across a large section of your home

. For example, a vertical crack will go across at least two of the levels on your home.

How do you fix structural cracks?

Repairs to structural cracks should be determined by

a Structural Engineer

, and could include pressure injection of an epoxy liquid into the crack, pinning or stitching across the crack, and/or the application of a surface-applied composite strengthening material.

Is it normal for walls to crack?

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.

Can I just paint over hairline cracks?

For deeper hairline cracks, you may want to use a

filler

to fill up the cracks before applying a new layer of paint in the affected area. However, if an extensive area has been affected, you will need to scrape off the paint and then sand the entire area to even out the edges before applying a fresh coat of paint.

Emily Lee
Author
Emily Lee
Emily Lee is a freelance writer and artist based in New York City. She’s an accomplished writer with a deep passion for the arts, and brings a unique perspective to the world of entertainment. Emily has written about art, entertainment, and pop culture.