The cost of erecting a roof today is very expensive than even that of constructing a wall. Therefore, the strength and duration of service of the roof is a greater choice that one should consider before choosing on the material to use as trusses on the roof.
Furthermore, the trusses carries the entire load of the roofing material hence, it should be made of a stronger material that can sustain such loads.
For maximum strength and durability, metallic trusses are the best materials to use while making your roof. They are not affected by pests as compared to wood. Once installed, they can serve for decades before replacement whereas wood can only serve to a duration of twenty years.
These features finds applications for this type of trusses in buildings that require long span such as; aircraft hangers, sports stadia roofs, auditorium roofs and other several leisure buildings. Apart from this function, they are also used to carry heavy loads as well as in transfer structures.
As per definition, a truss is a triangulated system of straight interconnected structural elements. It is also referred to as an open web girder. The individual elements of the roof (trusses) are always connected at the nodes.
The metallic trusses are however expensive than wood trusses. This can be attributed to their effective and efficient job they carry out. Also remember that, it's better to spend much but only once during installation than to keep on replacing the roof after every twenty years. This will be very expensive and uneconomical.
Content created and supplied by: Owitijoseph (via Opera News )
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