Defects in Timber
‘Defect’, in this case, means anything that effects the structural integrity or appearance of timber.
Remember…
There are as many potential defects as there are uses for timber.
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By the end of this session you should be able to:
Identify three defects effecting timber
State the remedial action to be taken in each of the three cases
Defects in Timber
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Defects in timber
Timber is a natural material that is prone to defects.
One of these is the tendency to split if it is put under stress from rapid drying, poor felling or de-lamination of the growth rings.
These defects are all known as ‘Shakes’
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What other defects occur in timber?
pith
juvenile
heart
sapBlue stain
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Further considerations
What other defects may occur in timber or timber structures?
What circumstance or working load may, over time, cause timber or
timber structures to fail?
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