Composite decking has become increasingly popular in recent years due to its durability, low maintenance requirements, and aesthetic appeal. As a composite material, it is made from a combination of wood fibers and recycled plastic, resulting in a product that mimics the appearance of traditional wood decking but with added benefits. However, one common question that arises among composite decking owners is whether or not it can be pressure washed. In this article, we will explore whether pressure washing is a suitable cleaning method for composite decking, the potential risks involved, and alternative cleaning solutions.
Understanding Composite Decking
Before delving into whether pressure washing is appropriate for composite decking, it is important to understand the nature of the material itself. Composite decking is designed to withstand the elements, making it resistant to rot, mold, and mildew. It is also typically treated with UV inhibitors to prevent fading and discoloration. While traditional wood decking requires regular staining, sealing, and maintenance, the low-maintenance nature of composite decking is one of its main selling points.
While pressure washing is a highly effective method for cleaning various surfaces, using it on composite decking requires some caution. The powerful force of a pressure washer can potentially damage the surface of the decking if not used correctly. In particular, high-pressure settings, incorrect nozzle types, and improper technique can cause etching, scratching, or even splintering of the composite material.
Risks and Concerns
Pressure washing composite decking can pose several risks and concerns. Firstly, the combination of high-pressure water and the hardness of the decking material can lead to erosion or removal of the protective outer layer. This can cause the decking to become more susceptible to moisture absorption, leading to potential issues such as warping or swelling.
Furthermore, pressure washers that emit water at high temperatures carry the risk of melting or distorting composite decking. Therefore, it is crucial to avoid using hot water settings if pressure washing is deemed suitable. Additionally, using the wrong nozzle type or holding the pressure washer too close to the decking surface can result in the etching, scratching, or splintering mentioned earlier.
Alternative Cleaning Solutions
Although pressure washing should generally be avoided when it comes to cleaning composite decking, there are alternative methods that can effectively remove dirt, grime, and stains without causing any damage. Some of these methods include:
- Regular Cleaning: Composite decking can benefit from routine cleaning to prevent the buildup of dirt and debris. Simply sweeping or using a leaf blower to remove loose particles is often sufficient.
- Gentle Soap and Water: For more stubborn stains, using a mild detergent or soap with warm water and a soft-bristle brush can effectively remove them. Rinse the decking thoroughly to ensure no soap residue is left behind.
- Oxygen Bleach Solution: Oxygen bleach is a non-toxic and eco-friendly cleaning solution that can be used to remove deeper stains and mildew. Follow the instructions on the product packaging and rinse the decking thoroughly after application.
While pressure washing can be an effective cleaning method for many outdoor surfaces, it is not recommended for composite decking. The potential risks of damage to the material outweigh the benefits. Instead, opting for gentler cleaning methods such as regular sweeping, using soap and water, or using an oxygen bleach solution will ensure your composite decking stays clean and in optimal condition for years to come.