Removing lichen from a metal roof requires a careful approach to avoid damaging the roof’s surface. Here’s a step-by-step guide to help you safely and effectively remove lichen:
Materials Needed:
- Soft-bristle brush or broom
- Garden hose with a spray nozzle
- Bucket
- Mild detergent (non-corrosive, such as dish soap)
- Bleach (optional, for stubborn lichen)
- Safety gear (gloves, safety goggles, non-slip shoes)
- Extension ladder
- Pressure washer (optional, use with caution)
Steps:
- Safety First:
- Wear safety gear, including gloves, safety goggles, and non-slip shoes.
- Ensure the ladder is stable and secure before climbing.
- Avoid working on the roof in wet or windy conditions to reduce the risk of slipping.
- Initial Cleaning:
- Use a garden hose to gently spray the roof and remove loose debris, such as leaves and dirt.
- Prepare Cleaning Solution:
- Mix a mild detergent with water in a bucket. If the lichen is particularly stubborn, you can mix a solution of 1 part bleach to 10 parts water. However, use bleach with caution as it can affect surrounding plants and surfaces.
- Apply the Cleaning Solution:
- Dip the soft-bristle brush or broom into the cleaning solution.
- Gently scrub the areas with lichen, taking care not to damage the metal roof. For areas with stubborn lichen, you may need to let the solution sit for 10-15 minutes before scrubbing.
- Rinse the Roof:
- Use the garden hose to thoroughly rinse the roof, ensuring all cleaning solution and loosened lichen are washed away.
- If you use a pressure washer, set it to a low-pressure setting to avoid damaging the roof.
- Inspect and Repeat if Necessary:
- After the roof has dried, inspect it for any remaining lichen.
- Repeat the cleaning process if necessary, focusing on stubborn spots.
Preventive Measures:
- Regular Maintenance: Keep the roof clean by regularly removing debris and washing it down with water.
- Zinc or Copper Strips: Install zinc or copper strips along the roof ridge. When it rains, metal ions from these strips will wash down the roof, preventing lichen growth.
By following these steps, you can effectively remove lichen from your metal roof without causing damage.
Roof Washing – Moss & Mould Treatment Services Auckland
Roof Washing – Moss & Mould Treatment Services Tauranga, Mount Maunganui, Papamoa