EN1991-1-4, Eurocode 1: Actions on structures -General actions - Part 1-4: Wind actions, is the head code for wind actions on structures and describes the principles and requirements for calculating design wind loads on structures. It complies with the requirements of Eurocode EN1990, Eurocode: Basis of Structural Design, and provides the wind actions necessary to implement the structural design Eurocodes 2 to 9.