Can Traffic Cause Hairline Cracks in House Walls?
Do you occasionally notice hairline cracks in the stucco walls of your home, and wonder if it could be related to the constant stream of moving vehicles and heavy traffic outside? Especially if your house sits right next to a main road, this enquiry is quite common. Let’s explore the potential causes and solutions to this issue.
Understanding the Causes of Hairline Cracks
Hairline cracks in the walls of your house can indeed be caused by the vibrations from traffic. The ground under your foundation can become compacted and shifted by the constant rumble of moving vehicles, automobiles, and trucks. Even the tracks of heavy construction equipment and even dense flights of aircraft can impact the vibrational environment. If you've noticed these cracks, it might be worth investing in a ground vibration sensor to monitor the fluctuations around your home.
Monitoring Ground Vibrations
For your peace of mind, you might consider purchasing an inexpensive electronic gadget capable of detecting ground vibrations. These devices can even log or record the perturbations for future analysis. Several years ago, nearby construction activities had me noticing the movement of hanging art in my home. While no structure damage could be directly linked to the construction, it’s not uncommon for hanging items to move slightly in response to the environment.
Exploring Factors That Affect Your Foundation
Understanding the geological composition of the ground where your house is situated is crucial. For instance, my home is built on a bed of clay about 8 miles in diameter, extending approximately 44 feet deep, ending in bedrock. Our foundation has been improved with additional piers, which have significantly alleviated door sticking and major wall cracks. However, if you're experiencing these same issues, it's advisable to check the supports under your house.
Addressing Structural Concerns
While hairline cracks in stucco may not be a significant issue in themselves, you should ensure that other structural elements are functioning correctly. For example, if you have doors that stick on one side of your house, especially if your home has a raised foundation, it might be a good idea to have a professional inspect the supports under the house. If the problem is predominantly on outer walls, inspecting the foundation for any cracks is essential.
Seasonal and Environmental Factors
It's common for houses to settle and shift with the changing seasons due to variations in temperature and humidity, especially in mid to low-priced homes. These seasonal changes can cause hairline cracks to appear or become more noticeable. Inspector workers will often observe such cracks upon inspection.
Solutions for Hairline Cracks
Though hairline cracks themselves are usually not severe, their appearance can be bothersome if you wish to maintain the aesthetic appeal of your home. Here are a few solutions you might consider:
Use Elastomeric Paint or Caulking Compound
Apply an elastomeric paint or a caulking compound to cover the cracks, then repaint the area to maintain a cohesive appearance. This is a cost-effective solution for addressing cosmetic issues.
Remember, if you are concerned about the vibrations under your house due to traffic or other factors, don't hesitate to contact your local county for more detailed information. Collaborating with nearby universities, farm land companies, or other sources can provide you with valuable insights.