Isolation in cavity
In 2012 an old monument in the centre of Amsterdam is being restored. Like in most old monuments, this house has its own walls and foundation. Betweeen the house and the adjacent buildings there exists a small cavity. These cavities are in contact with the open air. They have an irregular form. It would make good sense to isolate them. Both houses would benefit and no space is lost. We engineered a reversible solution, using polystyrene without glue, making sure that the material can be removed if the need arises.
This experiment is being monitored by us.