To limit the probability that the distribution of snow load on flat roofs or nearly flat shed or gable roofs, and on arched or curved roofs, which is used for the design of structural elements supporting these types of roofs, will not take into account the expected non-uniform distribution of snow accumulation caused by wind effects and snow removal, which could lead to high forces in critical components of these elements, which could lead to structural failure, which could lead to harm to persons.