If moss grows on the roof, it is a sign of good environmental conditions. Acid rain prevents the growth of these artists. In some cases, roof renovation makes more sense because mechanical removal involves risks.
How can you effectively remove roof moss?
To remove roof moss, you can use a pressure washer, rotating brushes, spatulas or torches. Alternatively, home remedies such as vinegar solutions can be used. To prevent moss from growing again, you should seal the roof properly after cleaning.
Mechanical cleaning
With a little hard work, moss growth on the roof can be removed using mechanical methods. When working at these heights, you should pay attention to your safety. In addition to scaffolding or a ladder, a tether can help prevent serious accidents.
High-pressure cleaner
Use a high-pressure cleaner (€105.00 on Amazon) to remove moss pads from roof tiles, whereby the jet should be directed 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. Processing brick panels containing asbestos 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
Flame throwers and gas burners kill moss down to the roots. To do this, pass 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 an aqueous vinegar solution, apple or wine vinegar and let the product work for one to two days. You can then clean the bricks mechanically.
Prevent re-mossing
If the roof covering has been treated with a high-pressure cleaner and brushes, a roughened surface may result. This structure offers optimal growth conditions for new moss cushions because it promotes a moist microclimate. It is therefore important that you seal the roof properly after cleaning work.