Doff system – PAINT REMOVAL (STONE CLEANING) from Concrete, Brick Walls, Sandstone and Limestone, York stone plus Graffiti in the Southport Birkdale and Ainsdale Crosby Liverpool and Preston, Wigan, Merseyside and the rest of the UK. we use the Doff system that uses super-heated water from Stone Health.

DOFF is a steam based stone cleaning system. It’s unlike any other steam system and can achieve temperatures of up to 150°C at the nozzle end. The operator is able to vary the temperature and pressure to remove many different types of paint and biological matter. The system is designed to work with low jetting technology to prevent damage to your working area

What can DOFF be used for?
The steam/superheated water will remove moss, algae, fungi and other biological matter and will also kill off spores. This means there’s then no need to use a chemical biocide during the removal process or as a protection against further biological activity.
How does it work?
DOFF cleans stonework and masonry using high temperature steam. Whilst the temperature in the system is high, the pressure on the surface being cleaned is very gentle and the volume of water is low. The surface is therefore not saturated and will be dry within minutes.
Why is Moss Bad for Roofing?
Moss and algae tend to grow in damp, shaded areas and can cause damage to your roof both directly and indirectly. If you allow large patches of moss to grow on your roof, these patches hold water against the surface of the roof, which can cause the roofing materials to rot. In addition, the water trapped by the moss pools in gaps between your roof’s tiles, and as that water freezes and thaws it can pull the tiles apart, causing even more damage! However, removing your moss of your roof can be dangerous but with the right tools and expertise this can be made easy without walking all over your roof.