Pressure washing a wood deck can quickly and efficiently remove built-up dirt, grime, and stains. However, using the correct pressure, angle, and nozzle is essential to avoid damaging the wood. Here are some steps to follow when pressure washing a wood deck:
Prep the area: Remove any furniture, plants, or other items from the deck, and cover any nearby plants or surfaces to protect them from the pressure washer.
Choose the proper nozzle: Use a fan nozzle with a 40-degree spray angle to avoid damaging the wood. This will provide a broad, gentle spray to clean the surface without gouging or splintering the wood.
Adjust the pressure: Set the pressure washer to a low-pressure setting, usually between 500 and 800 psi. High pressure can damage the wood or force water deep into the grain, causing it to swell or split.
Test a small area: Before you begin pressure washing the entire deck, test a small, inconspicuous area to ensure that the stress and nozzle are appropriate for the job.
Begin washing: At one end of the deck, hold the nozzle about 12-18 inches away from the surface and spray sweepingly, moving the wand back and forth as you work across the surface. Be sure to overlap each pass to ensure even coverage.
Work in sections: To avoid letting the cleaning solution dry on the surface, work in small areas, rinsing each unit thoroughly with water before moving on to the next.
Rinse thoroughly: Once you have finished pressure washing the entire deck, rinse the surface thoroughly with water to remove any remaining cleaning solution or debris.
Allow to dry: Allow the deck to dry completely before replacing any furniture or other items.
In summary, when pressure washing a wood deck, choosing the proper nozzle and pressure setting is essential, as testing a small area first, working in small sections, and rinsing thoroughly. By following these steps, you can effectively clean your wood deck without causing damage to the surface.