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.

Types of wood roof trusses.

The king post truss is mainly adopted for short spans less than 6 m. These steel joints are needed to support the overall truss. Studio two bearing points truss. Most common types of roof trusses gable trusses.

Steel rods are used as tension members. There are two fundamental types of trusses i e. 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. Alpine truss designs are engineered to meet specific span configuration and load conditions.

Commonly used in cathedral ceilings the cost of this truss is higher because it requires. Raised heel roof truss. Another very common roof type the hip truss is used to create a hip roof which has slopes on all four sides. A standard rule of thumb is the cathedral roof pitch can be up to one half of the roof pitch.

The cord size and web configuration are determined by span load and spacing. It typically makes a room feel larger due to the openness overhead. Scissor trusses give a nice cathedral ceiling to a room. It is usually used for roof construction some common trusses are named in accordance with their web configuration.

This method allows for greater energy efficiency. Common types of roof trusses parallel chord roof truss. Pitched truss or common truss characterised by its triangular shape. As the name implies this roof appears flat in structure although it is always pitched at a wider angle to allow water runoff.

Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. It is usually built of wood completely or of wood combined with steel. Below are the common types of roof. The raised heel roof truss reduces.

The more complex the truss framework is the greater quantity of these joints will be required.