The roof of the house should perform 2 functions: practical and aesthetic. When choosing the type of roof and roofing material, you need to evaluate, first of all, its practical side. And this means that it is necessary to ensure the strength of the rafter structure of the roof to the conditions of the region. With wind load, huts of the roof are preferred. When a large amount of precipitation falls out, the best design will be a roof with a steep slope of more than 45?.