Choosing a material for roof should be done once the purpose of the building or structure has been determined and the stress value should never exceed its limit, resulting to collapse. This is very critical since the pitch of a roof heavily depends on the truss. The builders are therefore looking towards roof truss designs that offer a solution to every project requirement. Traditionally, roofs are built on site wherein carpenters fixed plates and cut the rafters to required length to build the structure. While this is an acceptable way of building, it’s quite more complex requiring human measurements.
Prefabricated roof trusses today are made to address the issue and make the building process much easier and faster. They can now be lifted and craned easily, as well as can be customized according to your specific requirements. This is how roof truss designs serve as the most simplified way of roofing. The design must follow the layout that has been prepared originally. Then the external load can be calculated which includes the load of the truss. Various timber roof truss designs are made depending on the shape of your structure. These include king post truss, queen post truss, Howe truss, scissors truss, raised heel truss, flat slope truss, and many more.
Generally, roofs which are wider and longer also requires more trusses to cover up. For instance, the number of rafters needed to make shed roof truss design is usually twice the number of trusses required, which again, depends on the length of the roof. Unlike other roof truss designs, this one is easy to build and install using nails and glues. This truss design is commonly found in houses. On the other hand, flat roof truss design is usually used in flat roof structures of warehouses, malls and logistical parks. This truss design has spans of little high range, making it perfect for those buildings which are already at a higher level.