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As surely as the sun sets and leaves grow on trees, algae spread on render façades. The sight of algae on render really is ubiquitous, and unlike climbing ivy, nobody finds it attractive. Algae may not be dangerous—it won’t threaten the integrity of your building—but it will severely damage your property’s aesthetic appeal.
Luckily, cleaning algae from render is possible with the right gear and enough know-how. As with most progressive growths like this, algae on rendered walls is something best handled sooner rather than later. It is infamous for spreading shockingly quickly, so you’ll want to get yourself clued-up and ready to restore your property to its pre-algae sheen.
In simple terms, an alga is an organism that shares properties with plant life. However, it exists in a category of its own. It forms when moisture containing organic matter (from rain, for instance) adheres to your façade; this is why the sight of algae on rendered walls is especially common in humid climes. Over time, that organic matter comes to call your render home. It spreads, forming visible algae and causing an ugly pigment—typically either green, red or black in colour. You may find it especially noticeable on lighter façades, which is why cleaning white render walls from the eyesore of algae is such an urgent matter for some property owners.
In addition to humid, moisture-filled regions, algae also thrive on properties with leaks, cracked drainage pipes or blocked drainage systems. The continuous flow of dirty water introduced by these faults will encourage the growth of algae. Essentially, the more moisture your property is exposed to, the greater the risk of algae setting in.
Unfortunately for owners of rendered properties, the pores in the material serve as prime real estate for the first traces of algae. They nestle inside, where they can feed off the moisture and photosynthesize to fuel their growth. In no time at all, a few spots of algae can easily grow into a full infestation. This is what you want to avoid, purely because cleaning algae from rendered walls gets more difficult the more entrenched your infestation is.
Whether you should be worried about algae depends on what your plans are regarding the affected property. Are you looking to sell up, attract clients or acquire new tenants? Then perhaps you should be concerned: left untreated, algae can leave façades looking discoloured, tired and generally neglected (even though that isn’t the case). It acts as a repellent, causing prospective renters or clients to immediately think poorly of your property.
On the sunnier side, algae on render will not pose a threat to the building’s structure itself, and it won’t show up as a serious risk on surveys either. Still, when cleaning algae from render is so easy with modern innovations in building maintenance, you’d be foolish to let algae continue growing unchecked.
If you’re reading this post, you’re probably dealing with an algae situation yourself. Fortunately, we’re living in a time where the options for cleaning algae from render are as abundant as the different algae species themselves.
There are myriad solutions from top companies like K-Rend and Weber Saint-Gobain, and they will do a fine job at clearing up your algae problem. However, their methods involve continued treatment to prevent regrowth, something that will incur additional costs and wasted time on your part.
Our state-of-the-art system eradicates all present algae on render while preventing any regrowth, all in one fell swoop. What’s more, it’s even capable of fully cleaning white rendered walls, a feat that algae cleaning solutions simply couldn’t manage in years past.
1. Preparation - Our team carries out a thorough assessment of the area due to be treated. This involves a property survey and a risk assessment for all operatives and anyone due to being present at the time of the operation.
2. Biocide - We next apply a specialised biocide solution to the entire render façade using cost-saving rope access solutions and our unique 3D printed equipment. This provides a base for the cleaning process and wipes out any of the living organisms behind your algae problems.
3. Steam-based pressure washing - The next step involves our advanced pressurised steam cleaning equipment. This lets us work from the ground, as opposed to utilising costly cherry pickers or scaffolding, gently removing algae with a super-heated (around 150 degrees) cloud of steam. Many property maintenance companies would use pressure washing equipment instead of high-temperature steam. That, however, would risk damaging the render, which would be disastrous.
4. Biocide topcoat - Finally, we apply a top coating of biocide over the entire render façade to prevent any potential regrowth.
Remember, keeping as much moisture away from your property as possible is the key to preventing the buildup of algae on rendered walls. That means keeping on top of any leaks, cracked pipes or drainage issues.
If you’ve got any questions regarding algae or anything else troubling your property, feel free to get in touch! We’d be happy to discuss your needs or concerns.
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