Anti-moss Copper Roof Tape

Anti Moss Copper Roof Tape uses a flexible honeycomb copper structure that allows the tape to be shaped easily in all directions when pressed onto the surface. This makes it as workable as traditional lead tape, but lighter and easier to handle. The reverse side is fully coated with high-viscosity butyl adhesive, giving excellent grip and long-lasting bonding to roof tiles. Supplied in rolls of 5m length and 150mm width.

Over time, natural weather conditions make roof tiles an ideal surface for moss and lichen growth. Although this process is slow, it causes serious long-term damage. As moss takes root, it creates microscopic cracks in the tile surface. This reduces both the durability and the appearance of the roof. Moss and lichen also trap moisture, preventing proper water runoff and negatively affecting the entire roof structure.

As the copper surface reacts to weather and temperature changes, microscopic quantities of copper salts are released and washed down the roof by rainwater. These salts settle on the tiles below the tape line and create a powerful natural barrier against moss and lichen. This action is continuous, fully automatic, and 100% environmentally friendly. With every rainfall, the roof receives renewed protection, helping it stay cleaner, stronger, and more durable for longer.

Copper naturally forms a protective outer layer called patina. This layer is made up of alkaline copper salts such as copper carbonate, copper sulfate, and, in coastal areas, copper chloride. These salts protect the metal against environmental exposure. The colour of the patina changes over time from red brown to dark brown and eventually green. The speed of this process depends on air quality, humidity, and dust levels. Patina can form in as little as 4 years in marine environments, around 8 years in industrial areas, 15 years in urban conditions and up to 30 years in rural locations.