Fungus
The Opportunist Black staining on exterior walls is often assumed to be dirt or pollution. In most cases, it is fungal growth. Unlike algae, fungus does not produce its own food. It depends on organic material to survive, which is why it is rarely the starting point. What is fungus Fungi are microorganisms that feed on […]
Algae — The Ringleader
Red and Green algae are in charge! When people notice staining on their walls, it is often the red colour that draws attention first. It stands out. It looks unusual. It raises concern. But red algae is only part of the picture. Green algae is just as important — and often more widespread. What is […]
The Usual Suspects:
What Is Really Growing on Your Walls Most people assume the staining on exterior walls is dirt, pollution, or general weathering. In reality, it is usually a living layer of biological growth. This layer is made up of four main organisms: Together, they form what is known as biomass growth. It starts with algae Algae […]
What Does Responsible Exterior Treatment Look Like?
Over the course of this series, several themes have emerged. Exterior treatment remains a largely unregulated activity.Methods and materials vary significantly.The consequences of inappropriate intervention are not always immediately visible. The final question, therefore, is a constructive one. What does responsible exterior treatment actually look like? Understanding the material Historic buildings are composed of materials […]
Conserving the Fr. Michael Murphy Monument, Arklow
Hennessy-Ward Facade Cleaning Specialists recently carried out sensitive conservation works on the historic monument dedicated to Fr. Michael Murphy in Arklow, Co. Wicklow.