Power washing, also known as pressure washing, is a popular method to clean various surfaces around the home. It can be incredibly effective in removing dirt, grime, and mold buildup. However, when it comes to brick, especially older brick structures, it’s important to proceed with caution.
Potential Risks of Power Washing Brick
Damage to Mortar
One of the major concerns when power washing brick is the potential damage to the mortar. Older brick homes, particularly those built before the mid-20th century, often have weaker mortar that can be easily damaged or washed out by the high pressure of a power washer. This can lead to significant structural issues if the mortar is compromised 23.
Brick Surface Damage
Bricks themselves can also be at risk. Although bricks are generally durable, the high-pressure water spray can cause surface erosion, leading to a rough and pitted appearance. This is particularly true for older or softer bricks, which are more susceptible to damage 3.
Water Infiltration
Another risk is water infiltration. High-pressure washing can force water into the bricks and the structure behind them, which can lead to moisture problems such as mold growth and internal water damage. This is especially problematic if the mortar has been compromised 3.
Best Practices for Power Washing Brick
Use the Right Pressure
If you decide to power wash your brick, it’s essential to use the correct pressure setting. Lower pressure settings are recommended to minimize the risk of damage. Typically, a pressure setting of 500 to 1000 PSI is sufficient for cleaning brick without causing harm 2.
Maintain Proper Distance
The distance between the power washing wand and the brick surface is crucial. Keeping the wand at least 12 inches away from the brick will help prevent surface damage. Moving the wand in a consistent, sweeping motion can also help distribute the pressure evenly and avoid concentrating it in one spot 2.
Check the Mortar Condition
Before you begin, thoroughly inspect the mortar. If the mortar is crumbling or missing in spots, it’s best to repair it before power washing. This will prevent further damage and ensure the integrity of the brick structure 3.
Consider Alternative Cleaning Methods
For particularly old or delicate brickwork, alternative cleaning methods might be more suitable. Products like “wet and forget” are designed to clean bricks over time without the need for high-pressure water. These products can be sprayed on and left to work over weeks or months, providing a safer cleaning option 3.
Conclusion
Power washing can be an effective way to clean brick surfaces, but it must be done with care to avoid damaging the mortar and bricks themselves. By using the correct pressure, maintaining proper distance, inspecting the mortar, and considering alternative cleaning methods, you can keep your brick surfaces clean and in good condition without risking damage.
For the best results and peace of mind, consider hiring a professional power washing service. We offer expertise and experience to ensure your home is cleaned safely and effectively 2.
By following these guidelines, you can enjoy a cleaner, more beautiful brick home without the worry of unintended damage.