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The Right Timber Roof Truss Design

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By : Weekey Tigano    29 or more times read
Submitted 2012-03-23 08:31:23
In the early days of housing building, roofs that where also constructed where flat. This was generally because we didn't know any better and it was also cheaper to build a flat roof. Unfortunately a flat roof is extremely ineffective within our climate, and within a few years of putting up these roofs they began to collapse. Nowadays when we construct houses and other buildings for the roof we make use of a timber roof truss.

Roof trusses are frame of kiln-dried timber that is strongly joined together using steal nail plates to create an effective strong supporting shape for the roof. roof trusses will be designed to suit your constructions needs. It will be measures and designed to suit your roof extremely accurately to make sure that there is no weakness. A roof truss needs to become accurate as to support your roofs coverings, plus any additional strength for that weather.

There are three main characteristics which make up a timber roof trusses.

First the timber needs to be lightweight but without the loss of strength, and this is done by utilizing kiln dried and strength graded timber.

The design of a timber roof truss is crucial; any changes made without the go ahead from a structural engineer can end in a collapse.

The connection of the timber also needs to be precisely done by an engineer, as any changes within the blots, screws or pegs that hold it together could also decrease its strength and find themselves in a collapse.

Timber roof trusses are very reliable, however sometimes things can go wrong so you need to watch out for things that could cause failing.

If your truss is exposed to damp over a long period of time, even if the timber roof truss is treated, the damp will affect the actual wood, leading to strength decrease. This is more common in older building.

Another damp related problem could come from rot and insect damage. Again this will affect the strength of your truss. This is again common in older buildings where the ends of the trusses tend to be supported by stone walls.

Joint failure is again common in older structures in which the trusses have been connected through Mortise and Tenon joints, as these can be consumed by woodworm.

A timber roof truss is essential in roof construction, and providing you consult a great company with a great roofing trussing reputation, your roof truss will be extremely reliable for a long time.
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