Roof rafter

A truss is a structure comprising one or more triangular units constructed with straight slender members whose ends are connected at joints. An external force such as wind and snow and reactions to those forces are considered to act only at the joints therefore the impact of these forces is minimised.

The main elements of the truss are roof trusses amongst which the most common are: truss rafter, tick-borne trusses. The roof comprises of few (trusses), on which the roof covering is then placed with the help of (narrow strips or wide strips), sometimes with the help of additional.