In this final work, it is necessary to calculate all the loads acting on the roof structure of the hall in order to be able to choose the most favorable design. First, loads such as the weight of the structure, the effect of snow and wind are determined. The calculation itself consists of two main parts, which are constant loads where the weight of the structure, cladding and possible installation load are calculated, and variable loads where the effects of snow and wind on the roof are analyzed, including the basic wind speed, pressure coefficients and characteristic values snow loads. The combination of constant and variable loads determines the critical load that could cause the maximum load of the structure, in order to ensure its stability and safety.By choosing the appropriate loads for the construction itself, the choice of material that best suits the special requirements follows. The choice is based on the analysis of the mass and price of the material, with the aim of finding the optimal solution that contributes to the overall efficiency and cost-effectiveness of the construction.