Wall Cleaning

The extensive use of roughcast render and dashing on walls in recent years has led to the development of appropriate Wall Cleaning techniques. Just like a roof surface, dashed and rendered walls require a non-aggressive cleaning method in order to maintain a clean finish without damage to the surface.

The Contamination: Green and red algae die and disperse quickly.The precise identification of the black dots has not been made. They behave like lichen to the treatment and need brushing with soft brushes.