Removing stubborn build-up, dirt, or grime from any surface can be a huge challenge for property owners. If you have been struggling with how to remove red algae on render, you might be wondering which cleaning method will be able to effectively remove red algae and restore the appearance of the surface underneath. Here at Clearchoice, we offer a range of cleaning services designed to support business and property owners in the local area. Keep reading as we share our top tips for removal of red algae or contact us today for more information about the cladding cleaning services we offer.
What is Red Algae?
Before we can look at how to clean red algae from render, it’s important to understand why red algae presents such a challenge when it comes to cleaning cladding. Red algae, which is also referred to as Trentepohlia, is a common issue for rendered surfaces in damp and shaded areas. It creates a reddish-orange staining which can affect the aesthetic appeal of a building and may contribute to the degradation of the render when it is left untreated.
Red algae thrive in damp and humid environments. They are particularly common in areas with regular exposure to rain, limited sunlight, or high humidity levels. Rendered walls offer the ideal surface for algae growth as they are porous, which can trap moisture. There are certain factors which contribute to the growth of red algae and the requirement for industrial cladding cleaning. This includes the climate and weather in the local area, as high levels of rainfall and humidity create a good breeding ground for red algae. Shaded areas also encourage this growth, as the lack of sunlight prevents surfaces from drying as quick as they would with exposure to the sun. On top of that, dirt, dust, and organic materials on the render can provide nutrients for algae to thrive, which is yet another reason to invest in cleaning cladding services on a regular basis.
The Importance of Removing Red Algae
While you may think that you can leave red algae, this is something we never recommend doing. Beyond just the aesthetic issues and the stains it can cause, it can also result in long-term damage to your property. Red algae can weaken render, as the moisture trapped in the render may lead to cracking or spalling. It can also encourage mould growth, as algae can create conditions conducive to the growth of mould and other microorganisms. If you are looking to sell your property in the future, then this is very likely going to be noticed by estate agents and anyone viewing the property. A building with noticeable algae growth appears poorly maintained, potentially affecting its market value. Over time, it may also increase the property maintenance costs, as neglecting algae can lead to more severe structural issues over time, requiring costly repairs.
Steps to Remove Red Algae from Render
Before you can start to think about the best way to remove red algae from render, you’ll need to assess the extent of the growth on your property. Begin by evaluating the severity of the algae infestation. Mild cases may require simple cleaning which you can possibly do yourself, while extensive growth might need specialised treatments. Different methods can be used to remove red algae, depending on the extent of the staining and the type of render on your property.
Popular techniques include soft washing, where you apply a gentle cleaning solution, often containing biocides or algaecides, to kill the algae. The process uses low-pressure water, ensuring the render is not damaged during cleaning. This method is ideal for delicate render. Pressure washing is ideal for stronger surfaces and those with long-term red algae that needs removing. Keep in mind it may damage the surface and so a moderate pressure setting is always recommended. Steam cleaning, such as Doff cleaning, combines superheated water with low pressure to remove algae while sanitising the surface. This method is ideal for older or heritage properties, as it removes algae without causing damage.
To help kill off any remaining algae spores and stop regrowth, you’ll then need to apply a cleaning agent after the cleaning process is complete. These treatments are designed to penetrate the render and provide long-lasting protection against future issues. After cleaning, thoroughly rinse the surface to remove any residues of cleaning agents. The render needs to be left to dry completely, as residual moisture can encourage more algae growth. Finally, after all of the cleaning is complete, inspect the surface to see if there are any leftover stains. If you do notice this damage, a second cleaning or specialised stain remover may be needed to restore the surface to its original condition.
For challenging situations, it’s always best to seek professional assistance. Trained cleaning specialists have access to advanced tools, cleaning agents, and techniques which can help to restore any surface to its original appearance. Contact us today for more information about the services we offer and removing red algae on render.