Holm;
semi -vapor;
Sertone.
The most popular of these roofs, consisting of two triangles and two trapezes of equal size (the same figures are against each other), is called Valmova. One of the options for such a roof, in which the trapezoid sides are longer than the triangular, is called Dutch or semi -vapor. The tent roof is called if the house has the shape of a square and, therefore, all four slopes of this design are an isosceles triangles. In houses with complex geometry, which have the shape of the letters «P» or «G», a complex structure with four slopes is formed.
