Pressure washing is a highly effective method to clean and restore various surfaces, including decks. However, there is a significant concern about whether pressure washing can remove the sealant applied to the deck. In this article, we will delve into the topic and explore whether pressure washing can indeed remove deck sealant.
Understanding Deck Sealant
Before discussing the impact of pressure washing on deck sealant, it is crucial to understand what a deck sealant is and why it is applied. A deck sealant is a protective coating that is often applied to wooden decks to prevent water damage, mold growth, fading, and other forms of deterioration. The sealant functions by creating a barrier between the wood and external factors, thus prolonging the lifespan of the deck.
The Power of Pressure Washing
Pressure washing is an intense cleaning method that utilizes high-pressure water to remove dirt, grime, and various stains from surfaces. The forceful water stream and sometimes the addition of cleaning agents make pressure washing an efficient way to clean decks, driveways, sidewalks, and other outdoor surfaces. However, the power of pressure washing can lead to concerns about whether it can remove or damage the deck sealant.
The Impact of Pressure Washing on Deck Sealant
While pressure washing can remove dirt and debris from the deck’s surface, it typically does not remove the deck sealant when performed correctly. The sealant is specifically designed to withstand various weather conditions and provide protection to the wood beneath it. However, it is important to note that if the deck sealant is already weak or deteriorating, pressure washing can accelerate its removal.
Proper Pressure Washing Technique
To ensure that the deck sealant remains intact during pressure washing, it is essential to follow proper technique and precautions. Here are some tips to consider:
- Use the appropriate pressure: Adjust the pressure washer to a suitable level, as excessive pressure can damage the deck sealant. Generally, a pressure of 1500-2500 psi (pounds per square inch) is recommended for washing decks.
- Maintain a safe distance: Keep a safe distance of at least 12-18 inches between the pressure washer nozzle and the deck surface. This distance allows for effective cleaning while minimizing the risk of damaging the sealant.
- Angle the nozzle correctly: Hold the pressure washer nozzle at a 45-degree angle to the deck boards. This angle ensures that the water stream does not directly hit the sealant, reducing the chances of removal.
- Test an inconspicuous area: Before pressure washing the entire deck, test a small, inconspicuous area to check for any adverse effects on the sealant. This way, you can ensure that the pressure washing does not cause any damage or removal of the protective coating.
When performed with the proper technique and precautions, pressure washing should not remove deck sealant. The sealant is designed to withstand various elements and provide protection to the wood beneath. However, it is crucial to ensure that the deck sealant is in good condition before pressure washing, as the forceful water stream can accelerate its removal if already weakened. By following the appropriate pressure washing technique, you can effectively clean your deck while maintaining the integrity of the sealant.