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 earthquake resistance of the ERTEK constructions has been verified in the great Athen's earthquake, in 1999: the ERTEK three-floor residence owned by D. Papandreou, built exactly on the focal point of the earthquake, remained intact, while most neighboring buildings collapsed
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