The variety of roofing structures, which today are used to cover private houses, makes it possible to choose the best option in terms of performance and price of the structure. In the same article we will talk about the crawl, which is not often found on Russian open spaces. This is a round roof. Consider what forms it is, from what elements it is built, and also tell about the technology of its construction.
Types of round roofing
In purely constructive terms, the round roof should be divided into three types:
hemisphere , it is also a geodesic view;
It should be noted that each type has its own advantages over the others, as well as the construction technology. Therefore, we consider each position separately.
This type of roofing structure was developed in 1951 by the American architect Fuller. The engineer found a way to create a roof in which there was no traditional truss system. Instead, it was based on a framework made up of equilateral triangles. The latter, in turn, were assembled from a bar with a section of 50x100 mm and a length of 1-1.2 m.
They were interconnected by a special connecting element called a connector. In fact, it is a steel pipe with a diameter of 100 mm and a length of 6-8 cm. Metal blades 60 mm wide and 150 mm long were welded to it, which generally formed a five- or six-pointed star. The blades were welded in pairs. The photo below shows such a connector.
That is, during the assembly, it turned out that equilateral triangles were formed by installing their elements between the pair blades connectors. Where they were fastened with screws from the side of each blade.
Today, manufacturers of hemispherical roofs offer not only connecting elements of this type. There are other designs. In addition, it should be noted that today the roof of Fouler is assembled according to a technology in which there is no place for connectors.
The process of assembling this type of roof starts like all roofing structures. Namely, with the installation of the power plate. It is clear that the round roofing structure can be installed only on a round shaped house. And here there is one subtle point on which the quality of the final result depends. Namely, the installation method of the power plate.
For this, a bar with a section of 50x100 or 100x100 mm is cut into segments with a length equal to the length of the equilateral triangles from which the roof frame is formed. After that, these pieces of lumber mounted or on the walls of the house, or for the foundation poured. The method of fastening is chosen standard, but more often it is vertically installed studs that are mounted into the reinforcing belt of the house or foundation.
After the power plate is installed and secured, it proceeds to the assembly of the roof frame. To this end, L-shaped steel plates are installed and fixed with screws using the edges of the Mauerlat elements. They attach the edges of the triangles located at an angle to the horizontal. In the upper part of the two ribs set the connector. That is, it turns out that the segment mauerlat in the lowest plane of the roof frame assembly performs the functions of one of the edges of equilateral triangles.
Then horizontally between the vertices of the formed triangles is mounted on one additional edge. First, these edges form a horizontal reference plane. Secondly, they also form triangles, which are located upside down. Further, the whole process is repeated. That is, the second row of two oppositely directed triangles is formed.
It should be noted that in the construction of geodesic type roofs there is no such element as a ridge or its similarity. The bottom line is that the roof structure smoothly transforms into a hemisphere, forming at the very top a rounded shape consisting of an equilateral triangle or hexagon.
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