The ground screws are installed then the base frame is fixed in place.
The floor is insulated and damp proofed then the walls are erected on top of the base.
The kit is wrapped in a further insulating membrane
The building is fully wrapped in a waterproof, breathable membrane then the single piece, rubber membrane is applied to the roof.
The doors and windows are installed ready for the internal finishes and final external cladding.
Internally the room is fully insulated, floored, painted and decorated and all electrics completed.