Yes, the metal structure of a geodesic dome you buy can rust over time, especially if it is exposed to moisture, humidity, and harsh weather conditions. Rust is a natural process that occurs when metal reacts with oxygen and water, forming iron oxide on the surface of the metal. While many metal structures are treated or coated to prevent rust, over time, these protective measures can degrade, leading to the potential for rust to develop. Rust can weaken the metal structure of your geodesic dome and reduce its lifespan.
Here are some factors that can affect the rusting of a metal structure of a geodesic dome:
Type of metal: Different metals have different resistance to corrosion. For example, stainless steel is more resistant than mild steel, and aluminum is more resistant than iron. The type of metal also determines the type of coating that can be applied to prevent rust1.
Environmental conditions: The exposure to moisture, humidity, salt, chemicals, and pollutants can accelerate the rusting process. For example, geodesic domes near the sea or in industrial areas are more prone to rust than those in dry or rural areas1.
Protective coatings: The application of protective coatings can help prevent or delay rusting by creating a barrier between the metal and the corrosive agents. For example, galvanizing, painting, powder coating, and epoxy coating are some common methods of protecting metal structures from rust
