Rafters — the roof carcass

In order for the roof to be stable and firmly held and rafters are created, which take over all the weight of the roof, as well as the weight of snow and the strength of the wind gust. The rafters are most often made of wood, which should be in perfect condition. The wood should be even, without cracks, boards from coniferous wood are best suited. Pilomaterial is required to dry and remove all the bitch. For the manufacture of rafters, logs are also used, but they will be very heavy material when working, based on the weight of logs. The rafters from the boards are collected simply: materials are connected using nails and linings. The cross section of the rafters will depend on several factors. First of all, this is a load that is created from the weight of the roof and snow on it, it is also a step of rafters, the size of the flight, and, of course, the slope of the roof.