Posted on July 2024 by Pinnacle Painting and Decorating
The exterior of your home endures a lot from season to season—pollen, dirt, and mildew can build up, making your home look less than its best. When it comes to cleaning stucco, many homeowners wonder if power washing is a viable option. However, power washing stucco can be risky, and it’s crucial to understand the potential dangers and best practices before proceeding. Here’s what you need to know.
Why Power Washing Stucco Can Be Risky
Potential Damage
Power washing can apply a significant amount of force to the surface of your home. For stucco, this can mean chips, cracks, and even structural damage. Once the force of the pressure washer causes chips or cracks, moisture can get behind the stucco, leading to mold and rot that can cause thousands of dollars in damage 1.
Surface Sensitivity
Stucco is often mistaken for being more durable than it is. High pressure can punch holes in the stucco, especially if it’s foam-based, which is common in many homes. This is why many professionals advise against using high pressure on stucco surfaces 2.
Best Practices for Power Washing Stucco
Inspect for Damage First
Before you even think about power washing your stucco, it’s essential to inspect the surface for existing damage. Make sure all cracks and chips are sealed. If you find areas that are stained or visibly damaged, it’s best to call a professional painting company to handle the repairs. This ensures that the repairs are thorough and seamless, helping your home last for decades 1.
Use Low Pressure
If you decide to proceed with power washing, use a low-pressure spray pattern. The nozzle should never connect with the wall at a ninety-degree angle; instead, spray at a 45-degree angle to minimize the risk of causing damage to the textured exterior of your home 1.
Maintain Distance
Keep a safe distance from the wall when power washing. Stand at least 61 cm (2 feet) away from the stucco surface. Start rinsing from the top and work your way down, maintaining a careful distance to avoid damage 1.
Alternatives to Power Washing
Soft Washing
Soft washing is a preferable alternative to power washing for stucco homes. It uses less pressure and combines it with specialized cleaning solutions to remove dirt and mildew without damaging the surface 3.
Chemical Cleaners
Using chemical cleaners designed for stucco can also be effective. Products like bleach, borax, or vinegar solutions can remove stains and mildew. Apply the cleaner with a sponge, let it sit for 15-20 minutes, and then rinse with a garden hose 3.
When to Call the Professionals
If you’re unsure about power washing your stucco or notice any damage, it’s best to call in the experts. Professional painters can ensure that your stucco is cleaned safely and effectively, protecting your home’s structural integrity.