Macadam, often called tarmac, is one of the most durable surfaces a school, park or club can have. It copes with heavy use, takes line markings well and suits a wide range of sports and play. Durable is not the same as maintenance-free, though. Weather and constant use slowly build up dirt, moss, algae and vegetation, and a neglected macadam surface can deteriorate faster than people expect.
What goes wrong without maintenance
- Blocked surface texture. Porous macadam is designed to let water through. Dirt and organic matter clog it, so water sits on top.
- Moss and algae. These grow in damp, shaded areas and make the surface slippery.
- Vegetation at the edges. Weeds and roots push through cracks and joints and break up the surface.
- Faded lines. Markings wear away, making the area less useful for organised games.
A sensible maintenance routine
Keep the surface clear of leaves and litter, especially through autumn, and check the edges and drainage points regularly. On a planned cycle, a specialist clean removes the dirt and growth that has built up in the surface texture, followed by a moss and algae treatment to slow regrowth. Drainage channels and gullies should be cleared at the same time, and any small cracks or defects repaired before they spread.
Lines and coatings
Lines on macadam are usually painted rather than cut in, so they fade with use and weather. Remarking keeps the area clear and safe for every sport it is used for. Where the surface itself is looking worn, a court coating with binder and textured lines can transform it, giving a fresh, even finish and clear markings that meet national governing body guidelines, such as those from England Netball.
Getting more from the space
Many schools and parks use the same macadam area for several activities. Adding markings for extra sports is one of the simplest ways to get more use from an existing space. See Line-marking and how we look after macadam courts.
