How To Kill Moss On Tarmac

How To Kill Moss On Tarmac

How To Kill Moss On Tarmac

Tarmac is a durable and cost-effective material commonly used in driveways, pathways, and other outdoor surfaces. However, over time, moss can start to grow on tarmac, turning it green and making it slippery. Moss not only decreases the aesthetic appeal of tarmac but also poses a safety risk. Luckily, several methods can effectively kill moss on tarmac and restore its pristine condition. In this article, we will explore these methods in a step-by-step manner to help you get rid of moss and keep your tarmac looking clean and safe.

1. Manual Removal of Moss

The first step in killing moss on tarmac is through manual removal. This method involves physically pulling out the moss with your hands or using a stiff brush. Start by clearing any loose debris from the tarmac surface, such as leaves or twigs, to get a better view of the moss. Then, using a gloved hand or a brush, gently scrape away the moss from the tarmac, ensuring you remove as much of it as possible. Be cautious not to damage the tarmac surface during this process.

2. Applying a Moss Killing Solution

After the initial manual removal, it is crucial to prevent the moss from regrowing. You can achieve this by applying a moss killing solution. Various moss-killing products are available in the market, including chemical and non-chemical options. If you prefer a chemical-based solution, look for a moss killer specifically designed for use on hard surfaces like tarmac. Always read the instructions provided by the manufacturer and follow them carefully to ensure safe and effective application. Before applying the solution, make sure the tarmac surface is dry and free from dust or debris.

3. Brushing or Scrubbing the Solution

Once you have applied the moss killing solution, allow it sufficient time to work on the moss. The duration depends on the specific product you are using, so refer to the instructions for guidance. After the required period, it is essential to agitate and scrub the moss using a stiff brush or broom to remove the dead moss and promote thorough penetration of the solution. Be thorough but gentle to avoid damaging the tarmac’s surface.

4. Rinsing and Watering the Tarmac

After scrubbing the tarmac, it’s time to rinse off the residue and any remaining moss. Use a hose or a pressure washer to thoroughly rinse the tarmac, ensuring all the moss debris and solution are washed away. Also, don’t forget to rinse the surrounding areas to prevent any runoff from recontaminating the tarmac. Finally, lightly water the tarmac to dilute any remaining moss-killing solution that may still be present on the surface. This step will help avert any potential damage to nearby plants or grass.

5. Preventing Moss Regrowth

Now that you have successfully killed the moss on your tarmac, it’s important to take preventive measures to avoid future moss growth. Regular maintenance can go a long way in keeping your tarmac moss-free. To prevent moss from returning, consider the following practices:

  • Regularly sweep the tarmac surface to remove organic matter, such as fallen leaves or dirt, that can potentially allow moss to grow.
  • Maintain proper drainage on and around the tarmac by ensuring gutters, drains, and downspouts are clear and functioning correctly. Good drainage helps prevent excessive moisture accumulation, which promotes moss growth.
  • Expose the tarmac to sunlight as much as possible. Moss often thrives in shaded areas, so removing overhanging vegetation or trimming trees can help minimize moss growth.
  • Consider applying a moss inhibitor or preventative solution specifically designed for tarmac surfaces. These products help keep moss at bay by creating an environment that discourages its growth.


Removing and killing moss on tarmac can be accomplished through manual removal, applying a moss-killing solution, and thorough rinsing. After eliminating moss from your tarmac, it’s important to incorporate preventative measures to hinder future growth. Regular maintenance and implementing the preventive practices outlined above will help ensure a moss-free tarmac, enhancing both its appearance and safety.

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