PremiumŚrodek do czyszczenia elewacji i fasad Guard Industry
329,00 zł
62,45 zł/L
Moss and algae removers
Green growth appears where damp meets shade: a north wall, joints, a roof. Wash it off with a cleaner matched to the surface, and once it is dry a sealer will reduce how much water it takes in.
Moss and algae cleaners for facades and roofs
3 products
Sealers for the cleaned surface
4 products
StandardSilane facade sealer that deepens colour EH-16 EKSIL
145,00 zł
25,75 zł/L
EntryWater-repellent sealer for facades, roofs and paving - ImperGuard Ultra 4 in 1
269,00 zł
53,80 zł/L≈ 6,73 zł/m²
PremiumSolvent-based block paving sealer, wet look SK-2 CTS Chemistry
60,27 zł
54,12 zł/L≈ 7,22 zł/m²
PremiumSolvent-based sealer for concrete fencing EI-13 EKSIL
232,47 zł
46,14 zł/L≈ 5,43 zł/m²
How to remove moss and green growth
The green film is algae, moss or both. It grows where damp, shade and a rough surface meet, and it comes back after every wash if that cause stays.
Start with the cause: check that water drains away, that nothing pours from a gutter or sill, and that the spot is not in constant shade. Then wash the growth off with a product matched to the surface: facades, roof tiles or paving. Slipperiness after rain usually goes with the growth.
A sealer is not a moss treatment. You apply it only to a clean, dry surface to reduce absorption.
Read the full guide: Moss and green growth on paving, terraces and roofs →
Frequently asked questions
What removes green growth from block paving?
On paving, patios and other horizontal surfaces, where algae comes with other organic dirt, D-12 or EC-87 cleaners do the job. Test a small, inconspicuous area before you clean the whole surface.
Is a pressure washer enough for moss?
It strips growth off paving in minutes, but it also washes sand out of the joints and can damage the top layer of older paving. If you use one, keep the pressure lower and refill the joints afterwards.
Does a sealer prevent moss?
Indirectly. Moss and algae need damp, and a surface that absorbs less water and dries faster suits them less. With standing water and full shade the growth comes back despite sealing.
How often does green growth need cleaning off?
As often as the conditions return. With better drainage and more sun it can be every few years; in constant shade over standing water, every season.