Moss growing on the roof is a sign of good environmental conditions. Acid rain stunts the growth of these bon vivants. In some cases, roof renovation makes more sense because mechanical removal involves risks.
Roof moss can be easily removed with a high-pressure cleaner
Mechanical cleaning
With a little diligence, moss growth on the roof can be removed mechanically. When working at these heights, you should pay attention to your safety. In addition to scaffolding or a ladder, a safety belt can help prevent serious accidents.
high pressure cleaner
Use a high-pressure cleaner (€119.90) to remove moss pads from roof tiles, whereby the jet should be guided from top to bottom. This will prevent water from getting under the bricks and wetting the insulation. The pressure should be adjusted to the sensitivity of the roof covering so that it is not damaged. In the case of brick plates containing asbestos, processing with these devices is prohibited by law.
brushes and spatulas
Rotating brushes with coarse attachments are good for removing stubborn growth. If moss has settled in inaccessible spaces, you can scrape off the residue with a spatula.
flaming devices
Flamethrowers and gas burners kill moss cushions down to the roots. To do this, run the flame directly over the vegetation a few times until it is burned. Since this variant involves a certain risk of fire, you should not carry out the work on sunny and hot days. Make sure that no glowing residue falls on the floor.
Combat with home remedies
Vinegar is effective against moss. It usually works faster than chemical products and has a lasting effect. The substance prevents new moss pads from growing on the roof, at least for a foreseeable period of time. Spray the moss cushions with a watery solution of vinegar, apple or wine vinegar and let the agent take effect for one to two days. You can then mechanically clean the bricks.
Prevent re-mossing
If the roof covering has been treated with a high-pressure cleaner and brushes, the surface may become rough. This structure offers optimal growth conditions for new moss cushions because it favors a moist microclimate. It is therefore important that you seal the roof professionally after the cleaning work.