The Evolution of Roofs & Truss Design

Generally speaking the wooden truss designs that we often see today are commonly triangular frames connected by steel plates, or “truss plates”. The shape of a modern roof truss has not changed for quite some time but the design, construction and fitting has changed substantially. The triangular shape of roof trusses has been used since man would construct roofs for shelter made from pieces of logs and finally from crafted lumber many centuries later.

Trusses are used among residential, commercial, agricultural and institutional construction. Their incredible strength and durability allows for longer life spans and therefore a value for money that has simply not yet been beaten. Alongside the strength and durability of a roof truss is their design flexibility. They can be tailored to suit almost any shape or size for any home or property, restricted only by manufacturing, shipping and handling limitations.

The specifications of a modern roof truss are calculated via computer aided design (CAD). The ceiling, roofing materials, engineering principles, wind and snow loads with various additional stress conditions are all taken into consideration during computer aided design process. A detailed drawing of the truss is finally produced by the computer which details the stresses that occur during the various loads.

Before computer aided design software benefited the design of roof trusses there was a substantial amount of calculations to be done by experienced design professionals. Now that software essentially does this job for you, there is much less chance of a truss failing when constructed and put under the pressure of such things as rain, high winds and snow fall.

It is now known that the storage and handling of roof truss materials is vitally important to the overall strength of the truss. It is highly recommended that your truss materials should be kept out of rain and snow, even away from the humidity in the air during warmer months. Poor handling during the construction, delivery and installation of your truss is an incredibly common reason for truss failure.

Now that you have looked into the beginnings of truss design, the next step is to enquire about a feature truss for your home designed and fitted by a trusted roof truss manufacturer in your area.