One of the things that the makers of composite decks say is its beauty is that it will add to your backyard or wherever you install it. When you don’t maintain your patio, it can quickly be distorted. There are a lot of organisms that can quickly develop on wood plastic. Green algae is an example. When it grows on your deck, it can be a bad situation.

How to clean your deck

The write-up explains how to clean your deck. 

Maintain your deck 

Cleaning the surface texture is the key to keeping your deck beautiful. It will last longer if you do that. It depends on whether you follow best practice when installing the boards. You should take care of your deck. If you want to make sure that dirt doesn’t stay on your surface, you should make sure that it doesn’t stay long. If you see mud on your deck, you should first sweep it with a broom and then use a cloth to clean it off.

Scrub your deck 

If you see oil or grease on your deck, you should scrub it with a soft brush after you have poured soapy water on it. You don’t have to worry about oil spilling on your deck. You won’t have to worry about scrubbing and scrubbing your deck. The same thing happens for mold. To prevent mold from growing on your deck, you have to clean it regularly. 

When you sweep the top of your outdoor patio, you will be able to spot and remove algae before it becomes a threat to safety.

What do you do if green algae or moss grow on your deck?

It is possible to remove the green algae. The lifespan of the deck can be affected by the growth of algae on it. It’s the wrong side of algae to spread quickly. That’s why you have to remove it. 

How do you control the growth of algae on your deck?

When leaves and pollen accumulate on top, thealga will thrive. If the water comes in contact with the leaves, it will create a perfect breeding ground for green algae. If you don’t take care of your deck, it will become slippery. This will make it unsafe for you to walk on your wood plastic composite decking. Steps to Remove Algae from Your Composite Decking 

Step One 

Get your cleaning kit. What you will need to remove algae from your composite decking include a soft brush, soap or deck cleaner, water, power washer or a water hose. You can use any that is readily available. If you use a stiff brush, it will scratch the surface of your wood plastic composite deck. 

Step two 

Put a bucket with one-gallon of water in it. Pour the soap into the water and mix it with your hand. When mixing soap with water, make sure you wear a glove. Adding 34 cups of chlorine bleach to the solution is recommended by some. We don’t recommend bleach, but you can add it if you want to. 

Step three 

If you want to apply the soapy water to the algae, you should try to remove it first. You can clean it with a brush. It won’t remove all the algae, but it will make it easier. If the algae are scattered all over your deck, you can spray soapy water on it. The water can be poured on the area if it’s just in a spot. You should wait for at least 10 minutes so that it soaks into the algae that you want to remove. After waiting for about 15 minutes, you can scrub your deck with a soft brush. It’s a good idea to scrub along the grain of your boards. 

Step four 

Continue scrubbing until all of the algae is gone. If you are confident that you have removed all the algae from your deck, you can rinse it with water. You can either pour water on the surface or use a power washer. When using a power washer, it is best to use a fanning nozzle because it will not let the rushing water damage the surface of your deck.


If you follow the steps outlined in the write-up, you can remove algae from your deck. You should make sure that you clean your wood plastic deck regularly to keep it free of algae.

Read more: Without a pressure washer, how can I clean my cladding?

Read more: How to remove mold from a Deck?

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