The capacity of buildings to offer functionally valuable spaces for a long time is defined
as its durability or longevity. This parameter is usually used for determination of the real
value of buildings, the rate of their depreciation and is included in insurance procedures.
Durability or longevity in architecture and construction is not a simple and explicit issue. It
can be considered in physical or abstract context. From the architectural and structural point
of view in this discussion, the following could be considered: