Light roof fasteners form an industrialized system for the prefabricated construction of wooden roof structures according to strictly defined and protected LRF technology. It is based on the use of a special joint asset – the metal LRF-C connector which is used to form the nodal connections of the grid static systems bars, which are the filled from the upper and lower belts in one plane. They are used in the construction of unfinished buildings roofs and in the upgrading of buildings with dilapidated roof covering, in the conversion of flat roofs into pitched roofs, in public and residential buildings, industrial, business and production facilities, warehouses, sports facilities… The advantages of LRFs are: light construction, fast installation and less load on the structure. LRFs in our production go through the process of thermal treatment of wood- the sterilization.