As we didn’t want to use pressure on the render, we instead used a soft wash technique.
Firstly brushing on a chemical to remove most of the algae, then rinsing and applying a second chemical which has great adhesion to vertical surfaces giving it the time needed to kill of any spores left behind.
JM Shearer Ltd.
Auchenbrae
High Kype Road
Strathaven, ML10 6UQ