Expandify homes are engineered for long-term durability and designed to last several decades with proper maintenance. Features include: Galvanised Steel Frame , Rust-resistant and termite-proof. Premium Insulation & Cladding , Weather-resistant materials designed for Australian conditions. Double-Glazed Windows , Enhancing thermal efficiency and longevity. 7-Year Structural Warranty , Covering major structural components. With routine maintenance, Expandify homes offer lifespan similar to traditional builds.