Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate (foundation aspects E02D)

Child Classifications

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• E04H 9/02 withstanding earthquake or sinking of ground (foundations E02D27/34)
• E04H 9/04 against air-raid or other war-like actions
• E04H 9/14 against other dangerous influences, e.g. tornadoes, floods
• E04H 9/16 against adverse conditions, e.g. extreme climate, pests