Do Tree Roots Damage Foundation?

Can Tree Roots Really Damage Foundations?

The short answer is: Yes, tree roots can cause foundation problems. It depends on various factors such as the type of tree, the distance from the home, and the condition of the soil.

Tree roots naturally seek out moisture to support the tree’s growth. Foundations, particularly those in areas with expansive or clay soils, become a target for roots when the ground becomes too dry. In their search for water, roots will extend toward a foundation and exploit any tiny cracks or weak points.

However, it’s important to understand that tree roots do not actively “break through” solid concrete or stone. Instead, they exacerbate existing vulnerabilities in your foundation or indirectly cause damage by affecting the surrounding soil.

How Tree Roots Cause Foundation Damage

1. Soil Shifting: One of the most common ways tree roots damage foundations is by causing soil movement. Roots draw water from the soil. In regions with expansive clay soils, this will cause the soil to shrink and shift. When the soil moves, it creates gaps or uneven pressure around your foundation. This gaps lead to cracks or instability.
2. Seeking Moisture: In particularly dry conditions, roots grow towards foundations in search of water. If there are cracks in the foundation, roots enter and grow. This further widens the gaps. Over time, this leads to structural damage.
3. Physical Pressure: While tree roots typically avoid compact, hard surfaces like concrete, they will exert pressure on a foundation if they grow too close. Larger roots from mature trees will push against the foundation walls, driveways, or underground pipes, causing displacement.

Purdue University (2020) typically, when roots encounter solid, impervious surfaces such as pipes, sidewalks, curbs and foundations, they are redirected laterally or up and over. However, if there is a breach or a crack nearby, they can and will exploit those voids in search of moisture. 

Signs That Tree Roots May Be Damaging Your Foundation

There are a few key signs to look for if you suspect tree roots may be affecting your home’s foundation:

• Cracks in the foundation: Hairline cracks are a normal part of a home settling, but larger or widening cracks are a sign of trouble.
• Uneven floors or doors: If your floors seem to have shifted or your doors no longer close properly, this may indicate foundation movement from soil displacement.
• Visible tree roots near the foundation: If roots are growing close to your home, they are affecting the surrounding soil, which leads to foundation issues.
• Excess moisture or soil erosion: Tree roots affect drainage patterns, causing areas near the foundation to remain damp or erode, which also leads to problems.

Which Trees Are Most Likely to Cause Problems?

Certain trees are more likely to pose a threat to your foundation due to the size and nature of their root systems. Trees with aggressive root systems include:

• Willows
• Oaks
• Poplars
• Silver Maples

These trees typically have large, spreading roots that seek water aggressively. Planting these species too close to a home increases the risk of foundation issues.

How to Prevent Tree Root Damage to Your Foundation

1. Choose the Right Trees: When planting trees near your home, consider species with less aggressive root systems. Trees like dogwoods or crape myrtles have shallower and less invasive roots, making them a safer choice near structures.
2. Mind the Distance: Plant trees far enough away from the house to minimize the risk of roots reaching the foundation. A good rule of thumb is to plant trees at a distance equal to their mature height. For example, a tree that will grow 30 feet tall needs to be planted at least 30 feet from the home.
3. Root Barriers: If you already have trees close to your home, install root barriers. These barriers direct roots away from the foundation, protecting your home while still allowing the tree to grow.
4. Regular Inspections: Have a professional inspect your property and foundation regularly. Early detection of soil shifting or root encroachment prevents larger, more expensive issues later on.
5. Proper Watering: Trees often seek water from the foundation when the surrounding soil is too dry. Keeping your yard and trees adequately watered will reduce the likelihood of roots spreading toward the home.

Consider Removing the Tree

If tree roots are causing damage to your foundation, hiring a professional Grapevine tree service company is the safest and most effective solution. Attempting to remove a tree on your own is risky, especially if the tree is large or the roots are already intertwined with your home’s foundation.

Torres Tree Service has the expertise and equipment to safely remove the tree without causing further damage to your property. They will also assess whether the entire tree needs to be removed. Or if selective root pruning will solve the issue. By hiring experts, you make sure the job is done correctly.

Conclusion

While tree roots can pose a threat to your home’s foundation, the risks are minimized with careful planning and proactive maintenance. Choosing the right trees, plant them at a safe distance, and monitor your foundation for signs of damage.

Then you will enjoy the beauty and benefits of trees without worrying about structural issues. If you suspect tree roots are impacting your home’s foundation, it’s important to consult with a professional tree service to evaluate the situation.

References:

Purdue University. (2020, October 27). Can tree roots cause damage to a home’s foundation? Purdue University. https://www.purdue.edu/fnr/extension/question-can-tree-roots-cause-damage-to-a-homes-foundation/