Flat Trusses Roof Design

The truss is a framework consisting of rafters posts and struts which supports your roof.

Flat trusses roof design.

They support live and dead loads by efficiently transferring the loads to the building walls or supports. As we will see below there are several different types of designs and this will impact the angles and designs of the overall truss. 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. To frame this style roof hip trusses are utilized from the main peak of the building stepping down with a flat top chord.

Continue reading below our video of the day. Examples of live loads are snow wind rain and temporary construction loads. Contractors and builders know. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.

A flat roof truss is also known simply as a flat truss and is not completely flat but rather slightly sloped in order to allow water to run off of the roof. To achieve maximum indicated spans trusses may require six or more panels. In this design each side of the building has a roof pitch and eave. Pitched and flat roof trusses with average loading and spacing of 15 to 20 ft are infrequently used for spans in excess of 80 ft.

The flat portion is increased the nearer the truss is to the end wall. Roof trusses are engineered wood alternatives to hand framed rafters. Offering numerous custom design options our trusses present an economical and struc turally superior method for rapid erection. Mitektrussesare versatile mitek trusses provide more design flexibility inside and out than con ventional framing.

This can be cantilevered at one or both ends. Trusses must be designed for any special loading such as concentrated loads from hanging partitions or air conditioning units and snow loads caused by driftingnearparapetorslide offfromhigherroofs. Live loads are not always present. In order to make this correctly you will have to work out exactly what you need to do with your truss in order to create a flat roof.

Flat trusses the flat truss can be designed as bottom or top chord bearing or for multiple and simple spans.