How to Clean Render
House render provides an attractive and long-lasting finish, but its porous nature means it's prone to accumulating dirt and developing green algae over time. To keep your render looking its best for decades to come, regular and proper cleaning is essential.
This guide provides you with expert methods for safely and effectively cleaning your rendered walls, ensuring you can eliminate unsightly green growth and preserve your home's modern appeal without causing any damage.
Specialist Render Cleaner
Using a specialist cleaning product such as GK Render Cleaner will provide you with a deep clean that eliminates vegetation and biological growth.
GK Render Cleaner is a high-performance, long-lasting cleaner that has been specifically developed for the effective removal of organic and microbiological soiling, including algae, lichen, fungi, mould and bacteria.
It is particularly well suited for use on render, helping to restore a clean and well maintained appearance to your home.
Formulated without solvents, bleach, or acids, GK Render Cleaner is safe for use on rendered surfaces. It will not harm or discolour the treated surface, making it ideal for both domestic and commercial maintenance.
How to Apply GK Render Cleaner
Before application, remove any bulky growth with a broom or mechanical scraper. We recommend carrying out an initial test to check compatibility and consumption.
Apply the formula in dry conditions using a brush or garden sprayer, ensuring the surface is saturated using the following dilutions:
For Heavy Soiling: Mix 1 part product with up to 2 parts water.
For Light - Medium Soiling: Mix 1 part product with up to 4 parts water depending on the severity of the staining.
Allow time for the product to work (ideally overnight), allowing for longer in cold weather (>10℃).
Clean tools and equipment immediately after use with clean water.
For the best results, after 7 days rinse the surface well with a low power pressure washer to ensure you do not damage the underlying substrate.
Alternative Methods to Clean Render
If you don’t want to use a specialist cleaner then there are other methods you can try. The effectiveness of these methods on biological growth varies, and none of them will provide the same protection against regrowth as a specialist cleaning solution.
Hand Cleaning Render
You can clean away any loose dirt using your hands or a brush. Then, use a stiff broom to wipe the render. Using a hose, rinse off the render with clean water, and then wipe away any remaining grime with a brush or sponge.
Pressure Washing Render
When using a pressure washer, make sure that you have an appropriate attachment. Using a fan tip rather than needlepoint will enable you to clean rendered surfaces gently without damaging the surface.
If incorporating any form of chemical solution with pressure washing, make sure to use appropriate protection, and check compatibility between the chemical and render before use.
Soap Cleaning Render
Use a gentle washing up liquid or dish soap mixed with water to create a solution. Apply this to the rendered surface, scrub with a soft brush or sponge, and then rinse the surface down with a hose pipe or low-pressure washer.
Why Choose a Specialised Cleaner?
Advanced Disinfection and Cleaning: GK Render Cleaner is a powerful solution that eliminates 99.9% of bacterial growth and effectively removes mould, lichen, and algae, ensuring a thorough and efficient cleaning process.
Fast Acting: The formula acts swiftly, eradicating biological contaminants within minutes of application and continues breaking down algae, fungi, and moulds naturally over time.
Easy-to-Use Formula: This user-friendly product is easy to apply with no specialised equipment required - simply use a garden sprayer or apply with a brush.
Bleach-Free and Environmentally Friendly: The formula is free of bleach, caustic, and acidic chemicals, making it safe for use and environmentally friendly. It poses no long-term risks to children or pets, with a virtually neutral pH of 6.
Shortened Maintenance Cycles: After the initial application, maintenance cycles become significantly shorter, making it convenient for regular cleaning and upkeep.
Versatile Application: With its natural surfactant cleaning action, Render Cleaner foams vigorously when applied by brush or spray, ensuring comprehensive treatment. It can be used on almost any hard substrate without negatively impacting surfaces or components.
Safe for Various Surfaces: Suitable for a wide range of surfaces, including lead works, UPVC windows and seals, fixtures, or fittings.
Summary
If you’re looking for a safe and effective cleaner to transform your render and eliminate biological contaminants, GK Render Cleaner is the ideal solution. This high-performance cleaner has been specifically designed to remove 99.9% of biological growth including mould, lichen, algae, fungi and bacteria.
