The cord size and web configuration are determined by span load and spacing.
Types of roof trusses and their uses.
The following are various components of a roof truss.
The raised heel roof truss reduces.
There are two fundamental types of trusses i e.
Principal rafter or top chord bottom chord or main tie.
30 different types of roof trusses illustrated configurations 1.
Studio two bearing points truss.
Common types of roof trusses parallel chord roof truss.
The attic truss or room in roof truss provides a simple structural roof and floor as one complete section.
It can be used for spans from 10 15m.
If all the members and the nodes are in a planar surface then this truss is a planar truss.
In fan trusses top chords are divided into small lengths in order to provide supports for purlins which would not come at joints in fink trusses.
Fan truss spans upto 10m to 15m it is made of steel.
These trusses are most often used as the roof trusses.
Pitched truss or common truss characterised by its triangular shape.
Commonly used in cathedral ceilings the cost of this truss is higher because it requires.
It is usually used for roof construction some common trusses are named in accordance with their web configuration.
Below are the common types of roof.
Fan trusses are form of fink roof truss.
It can be used to span roofs of about 8 yards in width and while it s usually made of wood it can be made from a combination of wood and steel if desired.
Planar truss as the name implies it is a two dimensional truss.
This particular truss is made out of wood most of the time but it can also be built out of a combination of steel and wood.
Another simple truss that s easy to use the king post features a central post and is well suited for smaller structures.
Raised heel roof truss.
As the name implies this roof appears flat in structure although it is always pitched at a wider angle to allow water runoff.