Removing green algae: a handy step-by-step plan
Green algae on your wooden deck, decking or fence makes the wood slippery and untidy. Read how to remove the deposits step by step.
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Green deposits on your wooden deck, decking or fence are not only unsightly but can also cause slipperiness. The Osmo Terrasreiniger is suitable for removing green deposits from wood. Whether you want to clean wooden decking, a deck or a fence, this powerful green deposit cleaner makes short work of deposits, algae, and dirt. In this article, you will read how to use the product optimally before replacing the wooden surface.
Video: Removing green algae
In this video you will see how to remove green algae from wood.
Groene aanslag verwijderen: hoe verwijder ik groene aanslag?
Step-by-step plan: Removing green deposits with the Osmo Terrasreiniger
Ready to remove your green algae? We are happy to provide you with a handy step-by-step plan so you can get started right away.
Preparation
Start by sweeping the surface with a stiff broom. Remove sand, leaves, and other debris to prevent it from mixing with the green algae cleaner. Ensure good drainage to prevent new green algae from forming.
Mix the Osmo Terrasreiniger
Add the Osmo Terrasreiniger to a bucket of lukewarm water. The dosage depends on the degree of soiling:
- Mild soiling: Mix in a ratio of 1:25.
- Heavy soiling: Mix in a ratio of 1:1 for maximum cleaning power.
- Apply the mixture evenly to the wooden surface.
Apply the green algae cleaner
Use the Osmo Patio Brush to apply the green algae cleaner evenly over the surface. Work in the direction of the wood grain to allow the product to penetrate optimally. Avoid letting the mixture dry out while removing the green algae.
Scrub thoroughly
Wet your patio. Scrub with the Osmo Patio Brush to effectively loosen green deposits, moss, and dirt. For stubborn green deposits, you can repeat the treatment.
Rinse the surface
Rinse thoroughly with clean water. Use a garden hose to rinse the deck, for example.
Avoid using a high-pressure washer to remove green deposits, as this makes the top layer more porous and the surface more susceptible to moisture. Cleaning with a high-pressure washer is extremely harmful to wood. It causes the soft parts of the wood to be damaged. After using a high-pressure washer, the damaged wood absorbs moisture more easily, causing the wood to turn green faster and rot more quickly.
Check and treat again if necessary
After removing the green deposits, check if all of them have been removed. Repeat the steps for stubborn spots or use Osmo Power-Gel for a deeper cleaning and to remove graying. For the correct approach, please refer to the Osmo Power-Gel product page.
If you would like to prevent green deposits in the future, we recommend treating the surface with an Osmo exterior treatment. This way, you can achieve a beautiful wooden finish, for example.
Benefits of Osmo Terrasreiniger
Osmo Terrasreiniger offers a complete solution for removing green deposits from wood. The benefits at a glance:
- Suitable for untreated and oiled wood, such as decks, fences and garden furniture.
- Removes green deposits without damaging the top layer.
- Highly efficient: 1 liter of Osmo Terrasreiniger is sufficient for 30 to 100 m², depending on the dosage.
- Works optimally in combination with the Osmo Patio Brush.
Follow-up treatment
After removing green deposits, you can provide extra protection to the surface with a suitable treatment:
- Osmo Terras-Olie: For treating horizontal wooden surfaces, such as decking and patios.
- Osmo UV-Beschermingsolie: For vertical wooden surfaces, such as fences and cladding.
Wait at least 24 hours after cleaning before applying these products so that the surface is completely dry.
Supplies
UV-Beschermingsolie Color Samples
Osmo's UV protection oil and Terras-Olie are available in transparent and lightly pigmented variants. A transparent finish will deepen the color of the surface, while a pigmented oil adds color and offers extra protection.
Terras-Olie: for horizontal wood parts
Prevent green deposits
For lasting protection and a clean patio, you can periodically clean the surface with a mild dosage of Osmo Terrasreiniger (1:25). Avoid standing water and ensure sufficient sunlight on your surface to limit new green deposits.
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