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.

Finally the truss calculator will compute the best dimensional method to connect the pieces of the truss with steel joints and a bridge. The same thing is true for the bridge of the truss. Scissor trusses give a nice cathedral ceiling to a room. These steel joints are needed to support the overall truss.

Studio two bearing points truss. The raised heel roof truss reduces. Commonly used in cathedral ceilings the cost of this truss is higher because it requires. Most common types of roof trusses gable trusses.

The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers. A standard rule of thumb is the cathedral roof pitch can be up to one half of the roof pitch. Below are the common types of roof. 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 cord size and web configuration are determined by span load and spacing. 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. It is usually built of wood completely or of wood combined with steel. A variety of the trusses shown above fit into the common or gable truss category including the king.

Common types of roof trusses parallel chord roof truss. This method allows for greater energy efficiency. Raised heel roof truss. It typically makes a room feel larger due to the openness overhead.

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. The more complex the truss framework is the greater quantity of these joints will be required. The king post truss is mainly adopted for short spans less than 6 m.

It is usually used for roof construction some common trusses are named in accordance with their web configuration.