Deciding on what material to use for the roof must be done after the single most purpose of the building or structure has been determined. This is even more important as the stress value should never exceed its limit, which may lead to collapse. This is very crucial because the pitch of a roof strongly depends on the truss. This is why builders are particularly considering roof truss designs that provide a solution to every project requirement.
Traditionally, roofs are built on-site wherein carpenters fixed plates and cut the rafters to the desired length to erect the structure. Though this has been the conventional way of building, it is a bit more complex and requires manual measurements. Conversely, the prefabricated roof truss designs of today are made to address the issue and make the building process a lot easier and faster. They can now be lifted and craned easily, as well as can be customized according to your specific demands. This is how roof truss serves as the most simplified way of roofing.
However, the design of the truss must comply with the layout that has been prepared, which then allows the calculation of the external load, including the load of the truss. There are different timber roof truss designs to choose from depending on the shape of your structure. These include king post truss, queen post truss, howe truss, scissors truss, raised heel truss, and flat slope truss. Typically, roofs that are wider and longer need more trusses to cover them up.
Take for example the case with shed roof truss design. It may take as much as twice the number of trusses often required, depending still on the roof length. This design is commonly used in building houses while a flat roof truss is generally used in malls and parks. This is because this truss design has spans of not much high range, making it ideal for those buildings that are already at a higher point. Overall, choosing the best option among various roof truss designs ultimately depends on your specific structure.
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