When it comes to maintaining the exterior of your home, cleaning can often be a daunting task. One common method of cleaning the exterior of houses is pressure washing, which uses high-pressure water spray to remove dirt, grime, and stains from various surfaces. However, when it comes to synthetic stucco, also known as exterior insulation finishing system (EIFS), there has been some debate on whether it can be pressure washed without causing damage. In this article, we will explore the ins and outs of pressure washing synthetic stucco and provide you with some fundamental guidelines to ensure safe cleaning.
Understanding Synthetic Stucco or EIFS
Before delving into pressure washing, it is essential to understand what synthetic stucco or EIFS is. Synthetic stucco is a multi-layered exterior finish system commonly used for residential and commercial buildings. It typically consists of a layer of insulation board, a polymer-based base coat, a fiberglass mesh reinforcement, and a textured or smooth finish coat.
The answer is both yes and no. While synthetic stucco can be pressure washed, there are essential guidelines that must be followed to prevent any potential damage to the system. Pressure washing should only be done by professionals who are experienced in working with synthetic stucco or EIFS. It is crucial to hire a reputable company or contractor that has specific knowledge and expertise in pressure washing this particular type of siding.
Factors to Consider
Before pressure washing synthetic stucco, several factors need to be considered to ensure safe and effective cleaning:
- Type of Synthetic Stucco: There are two main types of synthetic stucco – barrier and drainage EIFS. Barrier EIFS is more vulnerable to water damage and should not be pressure washed, while drainage EIFS is designed to allow water to escape and can handle pressure washing.
- Age and Condition: The age and condition of the synthetic stucco can impact its ability to withstand pressure washing. Older or poorly maintained synthetic stucco may have weak areas, and pressure washing could potentially cause damage.
- Pressure and Nozzle Selection: The pressure used for pressure washing should be carefully regulated, as excessive pressure can damage the surface of synthetic stucco. It is recommended to use a pressure washer with a maximum pressure of 1500-2000 PSI (pounds per square inch) when cleaning synthetic stucco. Additionally, selecting the right nozzle, such as a wide-angle nozzle, can prevent concentrated pressure on one spot.
- Technique: The technique used for pressure washing is crucial. Care should be taken to avoid directing the spray at an angle towards the EIFS. Directing the spray straight at the surface can help prevent water intrusion and potential damage.
- Protective Measures: Before pressure washing, it is essential to protect windows, doors, vents, and any other vulnerable areas from water intrusion. Additionally, nearby plants or vegetation may need to be covered or temporarily relocated to avoid any harm from the cleaning process.
Benefits and Risks
Pressure washing synthetic stucco, when done correctly, can provide several benefits, including improved aesthetics, removal of stains, algae, and mold, and increased longevity of the siding. However, there are risks involved if not done properly. These risks include water intrusion, damage to the synthetic stucco surface, and voiding the warranty if the siding is still under warranty.
In summary, synthetic stucco or EIFS can be pressure washed if certain guidelines are followed. Hiring a professional with expertise in cleaning synthetic stucco is highly recommended to ensure safe and effective cleaning. By considering factors such as the type of synthetic stucco, age and condition, pressure and nozzle selection, technique, and protective measures, you can maintain and enhance the appearance of your synthetic stucco without causing any harm.