Pressure washing a terrace can be an effective way to clean and maintain the surface, but it requires careful planning and execution to achieve the desired results. This comprehensive guide will provide you with the necessary information to pressure wash your terrace like a pro, covering everything from equipment selection to safety precautions.
Preparing to Pressure Wash a Patio
Rent or Buy a Pressure Washer
When it comes to pressure washing a terrace, you have two options: renting or buying a pressure washer. Renting a pressure washer can cost you between $35 to $175 per day, depending on the model and features. On the other hand, purchasing a pressure washer can range from $100 to $2,000, again depending on the type and features. Factors to consider when choosing a pressure washer include the cleaning power (measured in PSI or bars), the water flow rate (measured in GPM or LPM), and the size of the cleaning area.
Choose the Right Nozzle
The nozzle you use can significantly impact the effectiveness and safety of your pressure washing. For wooden decks, it’s recommended to use a nozzle with a wide fan tip or a rotating tip, as these provide a more gentle and even distribution of water. For other surfaces, such as stone or brick patios, you should use the lowest possible pressure that still gets the job done, typically around 140 bars.
Move Furniture and Debris
Before you start pressure washing, it’s essential to clear the area of any furniture, plants, or debris. This will ensure a safe and effective cleaning process, as well as prevent any damage to your belongings.
Best Method for Cleaning Terracotta or Stone Patio
Use a Pressure Washer
Pressure washers are highly efficient for cleaning patios, as they use less water than a standard garden hose and can complete the job much faster. When cleaning a terracotta or stone patio, it’s recommended to use a pressure washer with a pressure of up to 140 bars.
Select the Right Pressure
The pressure you use for your patio cleaning will depend on the surface material. For wooden decking, you should use a pressure of up to 130 bars, while for stone or brick patios, you can use up to 140 bars.
Use a Patio Cleaning Accessory Head
To achieve a smoother and more consistent cleaning, consider using a patio cleaning accessory head. This type of nozzle, also known as a rotary jet nozzle, provides a more constant and balanced stream of water, making the cleaning process more efficient and effective.
Cleaning a Wooden Deck or Fence
Use Low Pressure
When cleaning a wooden deck or fence, it’s crucial to start with a low pressure setting and gradually increase it as needed. Using a white 40-degree nozzle and spraying along the grain of the wood can help prevent damage to the surface.
Avoid Power Nozzles
Power nozzles, also known as rotary nozzles, should never be used on wooden surfaces, as they can cause significant damage to the wood fibers and lead to splintering or cracking.
Use the Right Detergent
To clean a wooden deck or fence, it’s recommended to use a sodium hydroxide-based cleaner or a specialized product designed for wood surfaces. Always test the cleaner on a small, inconspicuous area first to ensure it doesn’t cause any unwanted effects.
Technical Specifications
- Pressure: Up to 130 bars for wooden decking and up to 140 bars for stone or brick patios.
- Nozzle: Wide fan tip or rotating tip for wooden decks, and a patio cleaning accessory head for smoother cleaning.
- Detergent: Sodium hydroxide-based cleaner or specialized products, with a mixing ratio of 2-5% for stone cleaners.
Cost
- Rental: $35 to $175 per day.
- Purchase: $100 to $2,000, depending on the type and features.
Safety Tips
Plan and Be Prepared
Before you start pressure washing, it’s essential to have a clear understanding of the process and the safety precautions involved. Familiarize yourself with the operation of the pressure washer and the specific techniques required for your terrace surface.
Test Pressure Settings
Always test your pressure washer on an inconspicuous area of the terrace to ensure that the pressure settings are appropriate and won’t cause any damage to the surface.
Avoid Using Bleach
Bleach can be highly damaging to wood cellulose and is not recommended for use on wooden surfaces, such as decks or fences. Instead, opt for a sodium hydroxide-based cleaner or a specialized wood-safe product.