An important feature of the ERTEK structural skeleton is small weight, as compared to the weight of a conventional skeleton. Each floor slab unit having dimensions 3.60 / 3.60m weights 4600kg, while it is equally strong and rigid with a compact concrete slab unit 22cm thick (such a slab unit weights 7200kg). Small weight offers advantages that concern:

• the static behavior, as it is known that the main load applied to the skeleton of a building concerns the skeleton's own weight.
• the anti-earthquake behavior, due to the reduction of the inertia forces applied during the earthquake. The ERTEK structural skeleton exhibits approximately double earthquake resistance than a conventional skeleton due to the following features:
  -       the connections of the structural elements provide that the horizontal earthquake forces cause to these elements interdependent elastic distortions (plastic distortions in cases of very strong earthquakes) such that the forces are finally distributed to the whole skeleton. As a consequence, the structural elements cooperate as each one takes a portion of the force proportional to its strength. There are no "critical" structural elements of which a potential collapse would result in the collapse of the construction.
  -       A lot of small properly distributed elements of armature enhance the cooperative behavior of the structural elements, making the whole construction to function as a unified space truss.
  -       The bearing surface of the foundation slab absorbs a significant portion of the horizontal earthquake forces.
• the economy of the construction, as the cost of materials, transportation, excavation and foundation is reduced.