IN TIMBER Written by JOHN STAGG DEFECTSDEFECTS. Defects in Timber ‘Defect’, in this case, means anything that effects the structural integrity or appearance.

IN TIMBER

Written by

JOHN STAGG

DEFECTSDEFECTSDEFECTSDEFECTS

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


Things that attack timber


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’


Shakes


What other defects occur in timber?

Dry rot



pith

juvenile

heart

sapBlue stain




Insect attack



Shrinkage

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?


Construction Department

Defects in TimberEnd

GO AGAINGO AGAIN ENDEND

IN TIMBER Written by JOHN STAGG DEFECTSDEFECTS. Defects in Timber ‘Defect’, in this case, means anything that effects the structural integrity or appearance.

Documents

timber timber

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timber structures

cause timber

timber defect

timber state

appearance of timber

cases defects