Flat Trusses Roof Design

Economical spans are usually limited by the available sizes and lengths of solid sawed or glued laminated timber and by the potential capacity of the web member connections.

Flat trusses roof design.

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. Offering numerous custom design options our trusses present an economical and struc turally superior method for rapid erection. Examples of live loads are snow wind rain and temporary construction loads. While this article focuses on configurations we also have a very cool set of illustrations showcasing the different parts anatomy of roof trusses.

To achieve maximum indicated spans trusses may require six or more panels. A hip set is then used to frame the 6 or 8 feet nearest the end wall. 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. As we will see below there are several different types of designs and this will impact the angles and designs of the overall truss.

A flat truss is not necessarily flat as it slightly slopes to prevent the pooling of water on the roof and prevents the damaging or collapsing of the entire structure. The flat portion is increased the nearer the truss is to the end wall. 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. This can be cantilevered at one or both ends.

The truss is a framework consisting of rafters posts and struts which supports your roof. In this design each side of the building has a roof pitch and eave. Roof trusses are engineered wood alternatives to hand framed rafters. They support live and dead loads by efficiently transferring the loads to the building walls or supports.

Live loads are not always present. To frame this style roof hip trusses are utilized from the main peak of the building stepping down with a flat top chord. Flat trusses the flat truss can be designed as bottom or top chord bearing or for multiple and simple spans. Contractors and builders know.

Mitektrussesare versatile mitek trusses provide more design flexibility inside and out than con ventional framing.