Yes, Red Iron will rust significantly faster if left in its original state. The “Red” in Red Iron is simply a thin oxide primer meant to protect the steel during shipping; it is porous and will trap moisture against the metal. In contrast, Galvanized Steel is chemically bonded with a zinc layer (Cathodic Protection) that actively stops rust from forming. Even if a galvanized beam is scratched, the surrounding zinc protects the exposed steel, making it the superior choice for high-humidity areas or snowy Canadian climates.