Here is a guide on how to clean the render on your home:

1. Check the condition of the render: Before you start cleaning, you should check the condition of the render. If it is in poor condition, you may want to consider repairing or replacing it before cleaning. This will prevent any further damage or deterioration during the cleaning process.
2. Choose the right cleaning solution: There are several cleaning solutions you can use to clean render. The most common options include a mixture of water and bleach, a specialized render cleaner, or a pressure washer. Be sure to choose a solution that is safe for your particular type of render and will not cause any damage or discoloration.
3. Prepare the area: Cover any nearby plants or landscaping with plastic sheeting or a tarp to protect them from the cleaning solution. If you are using a pressure washer, you may also want to cover nearby windows and doors to prevent water from entering your home.
4. Apply the cleaning solution: Apply the cleaning solution to the render using a sprayer or a soft-bristled brush. Be sure to follow the manufacturer’s instructions carefully and wear protective clothing and gloves.
5. Let the solution sit: Allow the cleaning solution to sit on the render for the recommended amount of time. This will give it a chance to break down any dirt, grime, or algae that may have accumulated on the surface.
6. Rinse off the cleaning solution: Once the cleaning solution has had time to work, rinse it off thoroughly with a hose or pressure washer. Be sure to use a low-pressure setting on your pressure washer to avoid damaging the render.
7. Check for any remaining stains: If there are still stains or marks on the render after cleaning, you may need to repeat the process or use a more powerful cleaning solution. Be sure to test any new solutions on a small, inconspicuous area of the render before applying it to the entire surface.
8. Allow the render to dry: Once you have finished cleaning, allow the render to dry completely before painting or applying any other treatments. This will help prevent any moisture from getting trapped in the surface, which can lead to damage or decay over time.

By following these steps, you can effectively clean the render on your home and restore its appearance. Just be sure to take the necessary precautions and choose the right cleaning solution for your particular type of render.