How to clean a fence before painting - including the best methods for removing green algae
Briefly

To ensure a smooth and durable finish when painting a fence, it's essential to clean the surface thoroughly, removing dirt and mold. This preparation extends the life of the paint. Experts suggest various cleaning methods, from using a pressure washer to solutions like vinegar or bleach, depending on the fence’s condition. Timing is also crucial; it's best to clean on a dry, sunny day for optimal results. Debris should be removed before treatment to ensure effective cleaning and surface preparation.
You need to clean your garden fence thoroughly before painting as otherwise the paint won't adhere and will probably flake off in the future.
Washing and treating wooden surfaces fully requires some waiting time to allow your cleaning and treatment products to work effectively.
Read at Homebuilding & Renovating
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