Moss can be a real problem for tarmac tennis court owners, and left untreated, it can damage the court surface, rendering it pitted, slippery, and almost unplayable. Here's some advice on how to remove moss and prevent it from coming back.
Why does moss grow on tarmac tennis courts?
Moss spores are always present in the environment, carried on the wind or by animals and birds. Over time, your tarmac tennis court will accumulate a thin layer of organic debris that provides nutrients for the moss spores. Add to this poor drainage and damp, shady conditions, and you have the perfect environment in which moss could take hold and flourish.
How can you get rid of moss?
The cleaner and moss killer products that you'll need for the job are available from good DIY stores or direct from a local court construction and maintenance firm.
- The first thing to do is clear any surface debris from the tennis court. Rather than brushing the tarmac, which can break up debris and drive it deeper into the permeable surface, try using a leaf blower, working from the centre of the court and driving loose matter outward toward the edges.
- Remove the debris and burn it to kill off the moss spores it contains.
- Next, apply a tennis court specific tarmac surface cleaner. This is best carried out using a sprayer and on a still day when it's not too windy. Allow the cleaner to activate on the surface and the moss for half an hour or so.
- Now you'll need to wash the surface down to remove the cleaner and the dead moss. Your average domestic pressure washer might not be powerful enough for this job, so it's a good idea to hire an industrial strength model from your local tool hire shop. Work from the centre of the court outwards as before.
- Finish off by spraying concentrated moss and algae killer onto the surface of the court. The product should not be rinsed off, but should be left adhering to the surface of the court where it will kill any lingering moss spores, effectively preventing re-growth.
How can you prevent moss growth?
Moss regrowth can be prevented by taking the following steps:
- Use a leaf blower to clean the court surface weekly of loose organic matter, such as leaves and soil.
- Prune back any overhanging planting or tree canopy that causes patches of shade to be thrown on the court.
- Cover areas of loose soil adjacent to the court, and erect a low barrier of solid fencing around the existing perimeter fence to prevent dust and other loose matter from blowing onto the surface.
You can remove moss from your tarmac tennis court and prevent it from re-growing by following the guidelines given above. It's also a good idea to have your court cleaned and maintained annually by a professional tennis court construction contractor to ensure that it stays in tip top condition.
For more information, contact Recreational Surfacing Pty Ltd or a similar company.