After that, under the place where the skate will be placed, the head is mounted — the support beam, on which the support for it will be fixed. Make a lying, as a rule, from the same beam as Mauerlat. Then the racks on which the ends and the middle of the ridge beam will be based on the lyjna are strengthened. It should stand strictly vertically, otherwise the geometry of the entire roof will be broken. For stability, it is fixed with struts. Then the diagonal rafters are installed at all corners of the roof, which are rigidly fixed on the Mauerlat and the run of the skate. It is not recommended to use the method for connecting the elements, since this can weaken the design — it is better to think over the fastener system.