There is no need for vertical down-stands. Apertures and Service penetrations can be inserted anywhere in a panel, even after the initial build completion. This means that Mantle buildings can be adapted to provide extensions, wall removals, rooms in roofs or whatever your need. A downstairs room can be converted to a walk in shower or toilet with ease. Vertical highrise storeys added without additional structural support. The system is ‘Future Proof’. By the way, Mantle houses do not suffer from damp in the walls, so they don’t deteriorate.