Types Of Wood Roof Trusses

As the name implies this roof appears flat in structure although it is always pitched at a wider angle to allow water runoff.

Types of wood roof trusses.

Total load psf duration factor live load psf roof type 55 1 15 40 snow shingle 55 1 15 30 snow tile 47 30 snow 40 20 snow 1 25 20. The raised heel roof truss reduces. A standard rule of thumb is the cathedral roof pitch can be up to one half of the roof pitch. Alpine truss designs are engineered to meet specific span configuration and load conditions.

Raised heel roof truss. Most common types of roof trusses gable trusses. This method allows for greater energy efficiency. It is usually used for roof construction some common trusses are named in accordance with their web configuration.

The king post truss is mainly adopted for short spans less than 6 m. Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. The more complex the truss framework is the greater quantity of these joints will be required. The cord size and web configuration are determined by span load and spacing.

Below are the common types of roof. There are two fundamental types of trusses i e. It typically makes a room feel larger due to the openness overhead. The same thing is true for the bridge of the truss.

A variety of the trusses shown above fit into the common or gable truss category including the king. It is usually built of wood completely or of wood combined with steel. Scissor trusses give a nice cathedral ceiling to a room. Common types of roof trusses parallel chord roof truss.

The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. Steel rods are used as tension members. Another very common roof type the hip truss is used to create a hip roof which has slopes on all four sides. Pitched truss or common truss characterised by its triangular shape.

These steel joints are needed to support the overall truss.