Restoring of historically important buildings is not an easy job. To start art historians, thru
painstaking archive investigations, have to determine to original aesthetics and lay-out. This is
necessary because in the course of time most buildings have been remodelled or extensions have
been added to be able to comply with the requirements of its users.
We note as well that in case more area is needed for its new use then available, these extensions
have to show a clear difference between old and new. Historic copies are no option.
Another difficult aspect of restoration which needs much attention is the repair of the old building
materials to their original condition. Due to the aging of the building many materials are damaged.
In most of the cases this is only caused by natural aging. However in the tropics and especially in
coastal regions many buildings have serious salt damage. This damage is caused because many of
the original building materials have a higher saltine content which under the influence of leakages
or capillary humidity crystallizes in salt flowers on the walls.