Types Of Wood Roof Trusses

Studio two bearing points truss.

Types of wood roof trusses.

Raised heel roof truss. This method allows for greater energy efficiency. The king post truss is mainly adopted for short spans less than 6 m. 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.

These steel joints are needed to support the overall truss. The same thing is true for the bridge of the truss. 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 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. As the name implies this roof appears flat in structure although it is always pitched at a wider angle to allow water runoff. Another very common roof type the hip truss is used to create a hip roof which has slopes on all four sides. Commonly used in cathedral ceilings the cost of this truss is higher because it requires.

There are two fundamental types of trusses i e. A variety of the trusses shown above fit into the common or gable truss category including the king. The raised heel roof truss reduces. 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. Pitched truss or common truss characterised by its triangular shape. Alpine truss designs are engineered to meet specific span configuration and load conditions. The cord size and web configuration are determined by span load and spacing.

Below are the common types of roof. The more complex the truss framework is the greater quantity of these joints will be required.