Because the DOFF System is a steam based cleaning method, there is no need to use a chemical biocide during the course of the treatment. This makes the DOFF System environmentally friendly and well suited for use on heritage buildings.
Having the ability to increase the temperature of the steam, means that the DOFF System can make short work of removing different types of paint and biological matter such as algae and moss. The temperature at the nozzle end of the DOFF System can reach up to 150°C. When removing paint, we apply our specialist, water-based, paint softener 24 hours before the start of the cleaning programme. We are able to remove most indoor and outdoor paints and lacquers.
The DOFF System is incredibly versatile and can be used to safely clean a multitude of masonry types, including natural stone and bricks. Using high temperature steam and applying low pressure to the surface being cleaned, means that the surface will be dry in a matter of minutes, avoiding saturation of the brick or stone.