 The terrace is served by a fire which backs up against the fireplace in the dining room, and over which a rustic stone staircase rises to the wooden deck on the roof.The angle of the stairs determines the line of the plaster which rises diagonally across the fire to level out over the door.The same angle is continued outside in the flue which connects at the first-floor level into the service wing – a typical example of a rigorous formal integration which underlies Aalto’s at times seemingly willful manipulation of form.