It is important to note that the wind actions calculated using EN are characteristic values and are determined from the basic values of wind velocity or velocity pressure. Wind action is represented by a simplified set of pressures or forces whose effects are equivalent to the extreme effects of the turbulent wind. the response of the structure), depends on the size, shape, and dynamic properties of the structure. The effect of wind on any structure (i.e. The method for the application of wind load on roofs is given in EN :2005 (Eurocode 1 Part 4). This is why the application of wind load on roofs is so important. As a result, when wind load is acting on roofs, there is a possibility of the reversal of internal forces in the members of the roofs trusses or rafters from tensile to compressive or vice versa. While other loads such as the self-weight of materials, imposed loads, service loads, and snow loads are pointed downwards, wind load on roofs tends to pull the roof upwards. Wind load is one of the significant actions on roofs.
