Discover how mirrored and special material ceilings create stunning spatial illusions to expand small rooms, plus key safety, flatness, and maintenance challenges. This guide breaks down top materials and practical metrics to balance bold design with long-term usability. Discover how mirrored and special material ceilings create stunning spatial illusions to expand small rooms, plus key safety, flatness, and maintenance challenges. This guide breaks down top materials and practical metrics to balance bold design with long-term usability. Discover how mirrored and special material ceilings create stunning spatial illusions to expand small rooms, plus key safety, flatness, and maintenance challenges. This guide breaks down top materials and practical metrics to balance bold design with long-term usability. Discover how mirrored and special material