Wha Is A Roof Truss

In structural engineering the name truss describes a triangular design a joint framed structure that sustained the inclined vertical or horizontal loads a truss consist of angles channels plates and eye bars.

Wha is a roof truss.

Their mass production and availability have made them much more common than conventional roofs in today s construction industry. This article and series of illustrated diagrams shows you all the parts of a basic roof truss king truss and queen truss. At the site the truss roof frames are put together by framing carpenters. Rafter boards are fastened to the ridge board at the peak and the top plate where they join the wall.

Just as there are many types of roofs with many roof parts there are many different types of roof trusses this extensive article explains through a series of custom truss diagrams the different truss configurations you can use for various roofs. Rafters have a tendency to flatten under gravity thrusting outwards on the walls. This truss requires a soffit siding and additional insulation work from the onset which elevates construction costs. When roofing a building or home adhering to a proper roof truss design is critical.

While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses. The boards creating the slope of the roof are wider than lumber used to build trusses 2x8s 2x10s and 2x12s are most common in rafters vs. A truss roof is a triangular wooden structure constructed in mass quantities at a factory and shipped to job sites. Properly designed drag strut trusses shear walls or roof diaphragms and their connections will transfer lateral loads to the foundation and then safely into the ground.

The truss is then connected to the building structure using a special connector like the one shown here a simpson dsc. The raised heel roof truss reduces condensation problems since the truss creates a vapor barrier and is commonly seen in humid climates where mold is a common issue. The simplest form of a truss is one single triangle. In finished space insulation is placed between the rafter boards and drywall or other material is fastened to the face.

Because of the stability of this shape and the methods of analysis used to calculate the forces within it a truss composed entirely of triangles is known as a simple truss. Other factors that are important in roof truss design include the distribution of the load. The design must take into consideration the strength of the timbers if a wooden truss is used or the steel if a steel truss is used. The roof truss structure and design is integral to roof structural integrity and shape.

A timber roof truss is a structural framework of timbers designed to bridge the space above a room and to provide support for a roof trusses usually occur at regular intervals linked by longitudinal timbers such as purlins the space between each truss is known as a bay. There are many types of roof trusses as wall as many types of roofs more types than there are parts.