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.
Roof truss wood types.
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.
This is more appropriate when there is a need to have a roof in the roof between the posts of two queens.
Commonly used in cathedral ceilings the cost of this truss is higher because it requires the use of steel members to serve as bracing.
Alpine truss designs are engineered to meet specific span configuration and load conditions.
Here is a list of common names and pictures of the standard truss types styles.
Studio two bearing points truss.
Components of a steel roof truss.
This is a roof truss used to create a living space in the attic space.
I upper chord members.
When roof trusses are made of two materials such as wood and steel it is called a composite roof truss.
A roof is the uppermost parts of any building which give protection against animals and most especially weather be it rain snow sunlight heat wind and so on.
Roof trusses can be said to be the skeleton of the roof as you known the skeleton produce the shape of animals even humans.
As the name suggests this type of roof truss is used to create buildings with a barn like structure.
A roof also beautify a house but the primary purpose of a roof is to protect against any form of weather.
When a roof is to be provided for a building which does not have interior supports and the exterior walls are more than 12 m apart a roof truss will be a convenient arrangement to support the roof.
This type of roof is similar to the mansard truss but its top is flat with a slight slope to one side.
Parallel chord roof truss.
Truss types trusses come in all shapes and sizes.
Most common types of roof trusses.
The shapes and spans shown here represent only a fraction of the millions of designs produced by alpine engineers.
Roof trusses come in many types but the four variants below comprise the lion s share of constructed ceilings.