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Stucco cracks are usually caused by wrong mixing proportions, insufficient or excessive mixing, drying shrinkage due to the rapid evaporation of water from the stucco, seasonal changes, and seismic movement. But there are two more less-common causes of cracks in stucco: thenormal settling of the home anddifferential settlement.
While the cracks that occur naturally over time as the home settles are generally not a cause for concern—though these cracks should also be addressed before they cause any further issues—the cracks that develop as a result of differential settlement can have serious implications for any home. Because specific stucco cracks can lead to structural damage, a homeowner should be able to identify, diagnose, and evaluate the types of cracks that could develop in stucco over time.
Types of Cracks in Stucco
When it comes to stucco, cracks are almost inevitable. Althoughstucco is a durable siding material, its cement-based composition makes it fairly rigid and brittle. As a result, it cannot accommodate structural movement or the expansion and contraction of different building materials. To gain a better understanding of how and why cracks in stucco occur, let’s take a look at the various types of stucco cracks and their underlying causes.
Hairline Cracks in Stucco
Hairline cracks are typically about 1/16 of an inch wide. While these cracks aren’t as serious as wider cracks, they could still provide a pathway for water and moisture to enter your walls. Hairline cracks in stucco develop due to several different reasons, including:
very hot, cold, dry, wet, or windy conditions, which occur during the curing and drying process of newly applied stucco;
specific building materials, such asgreen lumber, which may change shape as they dry;
expansion and contraction of fresh stucco as it settles after the application;
inadequate spaces between the sheets of sheathing materials (e.g. wood, plywood, OSB, or gypsum sheets) used underneath the stucco;
incorrectly installed fiberglass mesh tape, which doesn’t cover the seam where two pieces of foam trim meet;
normal settling, which is caused by your home’s weight that compresses the soil beneath the foundation gradually and uniformly;
thermal movement, which occurs as a result of the different expansion and contraction rates of various building materials subjected to temperature fluctuations.
Spider Cracks in Stucco
These cracks are also thinner than 1/16 of an inch and look like spider webs, hence the name. Although spider cracking could be the result of normal settling, it typically occurs when:
the base coat isn’t allowed to cure properly or dries too quickly;
the material is mixed incorrectly or insufficiently;
too much water is added to the mix;
the stucco is applied in extremely hot or cold weather.
Pattern Cracking in Stucco
Multiple vertical and horizontal hairline cracks that show up as a grid pattern are typically caused by the lath, which isn’t nailed on properly. Because the lath is loose behind the stucco, it causes the stucco to crack as time goes by. However, it’s essential to know that pattern cracking could also be a sign of differential settlement.
Deep, Wide Cracks in Stucco
While most stucco cracks are thin and small, so they usually represent just a cosmetic issue, one or more large cracks could develop occasionally. Wider than 1/16 of an inch, any deep or wide cracks in stucco indicate possible problems with the foundations. These cracks are divided into two main categories:
Vertical and/or horizontal cracks – Large vertical and/or horizontal cracks could develop between two vertical walls, between walls and ceilings, or at joints between wood framing and brick/concrete masonry. Deep vertical cracks in stucco could also appear around window and door frames.    Â
Diagonal and/or stair-step cracks – Diagonal and stair-step cracks are typical indicators of structural issues, which may occur as a result of differential settlement and/or seismic changes in the foundation. In general, differential settlement is caused by unsupportive soils, which may become displaced—due to insufficient compacting and/or undercutting repeated expansion-contraction cycles, orextreme weather conditions, like flood events—and can no longer provide adequate support for your home. Regardless of how large a diagonal or stair-step crack is, it should be inspected and repaired by a professional soon after you observe it.
All Cracks Are Dangerous
Superficial or deep, small or large, cracks in stucco allow moisture and water to pass freely through your walls. This could lead to extensive water damage, rot, structural problems, and costly repairs down the road. As well, deep or wide stucco cracks are always an indicator of foundation damage. To prevent further damage and restore the structural integrity of your home, it’s important to address stucco cracks in a timely manner. If you’re unsure whether or not the cracks in your stucco indicate a small problem or foundation failure, have your home checked by an experienced foundation repair contractor. For a free consultation and repair estimate, contact our professionals today!
Are there specific preventative measures homeowners can take to reduce the likelihood of stucco cracking, such as proper installation techniques or regular maintenance?
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Do I call a foundation repair company if my house is leaning?
If your house is leaning, it’s crucial to call a foundation repair company. A leaning structure often indicates serious foundation issues that require immediate assessment and repairs to ensure your home’s safety and stability.
Are foundation repairs covered by insurance?
Foundation repairs may or may not be covered by insurance, depending on your specific policy and the cause of the damage. It's essential to check your homeowner's insurance policy or consult your insurance provider for clarification.
Can a foundation always be fixed?
Foundations can often be repaired; however, the specific circumstances and extent of damage will determine the feasibility and cost of repairs. Consulting a professional is essential for a thorough assessment to explore viable solutions.
Do foundation cracks need repair?
Foundation cracks need repair to prevent further damage to your home. Ignoring them can lead to structural issues, water intrusion, and costly repairs down the line. Addressing cracks early ensures your foundation remains stable and safe.
Can foundation cracks be repaired?
Foundation cracks can be repaired effectively. Various methods, such as epoxy injections and piering, are used to restore structural integrity and prevent further damage. Timely repairs are essential to protect your home and maintain its value.
Are foundation repairs tax deductible?
Foundation repairs may be tax deductible if they are necessary for maintaining the property or if they improve the value of your home. It's advisable to consult a tax professional to understand your specific eligibility and requirements.
Does foundation repair decrease home value?
Foundation repair does not decrease home value; in fact, addressing foundation issues proactively can enhance property value and attract potential buyers by ensuring a stable and safe living environment.
Are foundation repairs expensive?
Foundation repairs can be costly, but the expense is often necessary to prevent further damage to your home. The total cost will depend on the severity of the issues and the methods required for repair.
Are contractors needed to repair foundation?
Contractors are essential for repairing a foundation, as they have the expertise and tools necessary to accurately assess the damage and implement appropriate solutions. Professional contractors ensure the repairs are effective and comply with local codes.
Are foundation repairs permanent?
Foundation repairs are designed to be permanent solutions. When properly executed by experienced professionals, these repairs effectively address underlying issues and help maintain the structural integrity of your home over time.
Can foundation repair cause more damage?
Foundation repair can potentially cause more damage if not performed correctly. However, when carried out by qualified professionals, the process is designed to stabilize and protect your home's structure, minimizing any risks of additional issues.
Can foundation be repaired?
The foundation can indeed be repaired. Experienced professionals can assess the issues and implement effective solutions to restore stability and prevent further damage, ensuring the safety and longevity of your home.
Are foundation repairs worth it?
The worth of foundation repairs is significant, as they prevent further structural damage, enhance property value, and ensure the safety of your home. Investing in repairs can save you money in the long run by addressing issues early on.
Are foundation repairs covered by home insurance?
Foundation repairs may be covered by home insurance, but this depends on the cause of the damage and your specific policy. It's essential to review your coverage details and consult with your insurance provider for clarity.
Are foundation repairs covered by homeowners insurance?
Foundation repairs may or may not be covered by homeowners insurance, depending on the cause of the damage. If the foundation issues arise from a covered peril, such as a natural disaster, they are likely to be included in your policy.
Do foundation repairs last?
Foundation repairs can last for many years when performed by professionals, provided that underlying issues are properly addressed and maintained. Regular inspections and maintenance can further ensure the longevity of your foundation repairs.
Does foundation repair increase home value?
Foundation repair can increase home value by addressing structural issues that may deter potential buyers. A stable foundation is essential for safety and market appeal, making it a worthwhile investment for homeowners.
Do foundation repair companies fix leaks?
Foundation repair companies often address leaks as part of their services. They can identify the source of water intrusion and implement solutions to repair foundational issues, preventing further leaks and damage.
What signs indicate foundation issues?
Signs indicating foundation issues include cracks in walls or floors, doors and windows that stick, uneven or sloped floors, gaps around windows and doors, and water pooling near the foundation. Addressing these signs promptly can prevent further damage.
How long do foundation repairs take?
The duration of foundation repairs varies based on the severity of the issues and the methods used. Typically, repairs can take anywhere from a few days to several weeks to complete.
Can DIY methods fix foundation problems?
DIY methods may provide temporary relief for minor foundation issues, but they often lack the effectiveness and durability of professional repairs. For significant problems, it’s best to consult experts to ensure long-lasting solutions.
What causes foundation cracks to develop?
Foundation cracks develop due to various factors, including soil movement, insufficient drainage, and extreme weather conditions. These elements can exert pressure on the foundation, leading to cracks that compromise the structural integrity of a home.
Are structural engineers involved in foundation repairs?
Structural engineers are indeed involved in foundation repairs, as they assess structural integrity, recommend appropriate solutions, and ensure compliance with safety standards during the repair process.
What is the cost range for foundation repairs?
The cost range for foundation repairs varies significantly based on factors such as the type and extent of damage, ranging from $2,000 to $7,000 on average. For specific estimates, it’s best to schedule an assessment.
How can I prevent future foundation issues?
Preventing future foundation issues involves maintaining proper drainage around your home, ensuring gutters are clean, and grading the soil to direct water away from the foundation. Regular inspections and addressing minor repairs promptly can also help avoid major problems.
What techniques are used in foundation lifting?
The techniques used in foundation lifting include slab jacking, piering, and foam injection. These methods effectively raise and stabilize the foundation by addressing the underlying soil issues and providing the necessary support.
Is financing available for foundation repairs?
Financing is available for foundation repairs. At Allied Foundation Repair, we offer various financing options to help homeowners manage the cost of essential foundation services.
What documents are needed for foundation repair estimates?
The documents needed for foundation repair estimates typically include the property deed, any previous inspection reports, photographs of visible issues, and structural plans if available. These help ensure an accurate assessment of the foundation's condition.
How often should foundation inspections occur?
Foundation inspections should occur at least once a year, or more frequently if you notice signs of foundation issues, such as cracks in walls or uneven floors. Regular assessments help prevent severe damage and costly repairs.
What warranties are offered on foundation repairs?
The warranties offered on foundation repairs typically include both a workmanship warranty and a material warranty, ensuring long-term protection for homeowners against defects or issues that may arise post-repair.
3 Responses
Great post! It’s really helpful to know the difference between minor and major cracks in stucco, and when it’s time to worry.
Are there specific preventative measures homeowners can take to reduce the likelihood of stucco cracking, such as proper installation techniques or regular maintenance?
We would suggest contacting a contractor that is an expert in stucco application. We specialize in foundation repair.