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  • Darryn Webb

What causes Chemical Delignification

Updated: Nov 23, 2019

What causes chemical delignification?

As suggested by the name of this type of timber deterioration, chemical delignification is caused by some form of airborne attack on the timber. Examples of causes include:

In areas close to the sea, airborne salts attack the timber. This process may be accelerated for homes with terracotta roof tiles, as any tile fretting will allow further amounts of contaminated moisture into the roof loft space.Areas of high pollution, such as homes in close proximity to industrial areas or main roads, airborne pollutants will cause chemical delignification.Another cause of chemical delignification is the release of gases into the roof loft space. This may include the escape of gases from appliances such as slow combustion stoves or perforations to ducting from flued gas appliances. Hot water systems located within the roof loft space may also accelerate chemical delignification.


Is chemical delignification preventable / curable?

In many instances drastic measures would have to be taken to prevent chemical delignification from occurring, as the proximity of the property plays a huge part in the timber deterioration occurring (i.e. close to ocean, close to industrial area etc.). For ongoing maintenance & reduction of risk from damage occurring due to airborne chemicals, sealing roof battens with products such as pale boiled linseed oil will generally prolong their life.


How long does it take to treat?

We can treat a standard home in 1 day, this includes the removal of the excess fluff and the sealing with pale boiled linseed oil. Call us 0435776470



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