What is a truss

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The roof is the load-bearing structure of the roof. Its purpose is to carry the load from its own weight, but also the roof cladding, which forms the lintel, lathing, insulation and roofing. It also protects against snow, wind and other loads.

The trusses are divided into wood, metal and combined according to the material used. Modern architecture also offers trusses made of steel and reinforced concrete. Here is the most widespread purlin system. Formerly used hangers, hambals, and on the contrary, the most commonly used rafter. On low roofs, a wagon assembly is used. Tower towers are used.

The roof is then composed of horizontal, vertical and oblique elements. The basic elements are bindings, purlins and other rafters, bridle beams, hambalek, pillar, breeches.