How to Remove Algae from Outside Walls
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How to Remove Algae from Outside Walls

Outside walls are prone to biological growth such as algae, lichen, mould and fungi as they are exposed to all weather conditions. The mixture of moisture, shade and sunshine especially provides the perfect environment for biological contaminants to spread, which can ruin the appearance of your home and may cause serious problems to the integrity of the walls.

To preserve the health and aesthetics of your walls, you need to tackle this stubborn growth without causing more damage to the structural integrity of the wall.

Maintaining Your Outside Walls

Regularly cleaning and maintaining your outside walls will help prevent any damage from biological growth occurring, increasing the longevity of your walls and minimising serious problems from arising such as cracks. Masonry can be particularly susceptible to some lichen and bacteria that actively cause deterioration, so regular maintenance is required.

It is important to note that moss growth can be indicative of high moisture levels which is very damaging to masonry. If you are experiencing excessive growth, you may wish to have your walls examined by a professional.

Pressure Washing

One cleaning method that may be tempting is to tackle biological growth with a pressure washer. While this can remove algae, lichen, mould and fungi from the walls, this method can cause more damage to the wall.

Pressure washers can chip, crack or wear away stone, bricks and other materials over time, and can also be responsible for stripping mortar. There are more effective ways to clean your wall that do not pose a threat to the structural integrity of the walls.

Bleach and Acidic Chemicals

Bleach and other acidic chemicals can also be damaging to your walls due to their corrosive nature. Not only that, but once the bleach is rinsed away, this can be detrimental to animal and plant life that is affected by the run-off.

Hand Washing

Hand washing your walls is much less damaging than other cleaning methods, however, your outside walls can be very big and this would be an extremely labour-intensive task. Using a suitable cleaner will be much more efficient and effective.

The Best Method for Removing Algae from Outside Walls

Greener Kleener from GK is an effective disinfectant and cleaner that eliminates 99.9% of bacterial growth and will effectively remove algae, lichen, mould and fungi effectively and easily. It gets to work within minutes of application and continues to break down biological matter with cycles of sun and rain.

Greener Kleener is safe to use on outside walls, as it is free from any harsh chemicals such as bleach, caustic and acidic chemicals. After the initial application, further maintenance cycles will be a much shorter process, making it easy to stay on top of cleaning and maintenance.

With a virtually neutral pH of 6, you do not need to worry about the long-term effects on children, pets, merely keep them away from the treated areas until dry. Greener Kleener is also safer for plants and the environment.

Easy Application in 3 Simple Steps

All you need is GK Greener Kleener, water and a garden sprayer to get your outside walls clean and free from biological contaminants. We also recommend wearing gloves and eye protection when using any cleaning products.

Mix 1 part Greener Kleener to 2 parts water for heavy soiling, or 1 part Greener Kleener to 3 parts water for light to medium soiling.

Saturate the wall with the solution using a garden sprayer and leave it to work its magic.

Greener Kleener evaporates naturally, so you can leave it to complete the job without brushing or rinsing.

Final Thoughts

Removing algae and other biological contaminants from your outside walls is easy with Greener Kleener, simply apply using a sprayer and leave it to work its magic. Due to its virtually neutral formula you do not have to worry about any harmful effects on your walls or the environment.