A roof truss is one of the most important building components and is used to frame and sustain the roof structure of a home. Although roof trusses are mostly used for smaller buildings like sheds and garages, they can also be used for homes and large buildings.
Types of Trusses
Roof trusses can be classified in two basic categories: pitched or common trusses that are used for making structures with a sloped roof and flat trusses known as girders or parallel chord.
Building the Frame
The first step of creating a basic roof truss frame is to lay out a common rafter pattern and cut it accordingly. The ridge board’s height and the length of other rafters for the framing, if any, will determine the rise and run of this common rafter.
Joints on a traditional roof truss frame are mostly held together by metal plates or solid wood pegs. With this type of roof truss, it is possible to add as many webs as you want to the centre of the truss. However, you should be very careful while doing this as one wrong cut can compromise the strength of the truss.
Most conventional roof truss frames are hand lifted to the top of the structure when completed. Roof trusses are triangular in shape and are meant for carrying the weight of the materials used for covering the roof.