Do you know what Wet Rot is?

What is Wet Rot?

Wet Rot is a fungus which rots wood, causing the timber to decay naturally due to the presence of high moisture levels. The most common form of wet rot is called ‘Cellar Fungus’

How does Wet Rot Occur?

Wet Rot will occur when there is high moisture content present within a certain area. The can be caused for a number of reasons such as:

  • Leaking pipework or appliances (e.g washing machine / dish washer)
  • Leaking roof
  • Poor ventilation
  • Rising damp
  • Penetration dampness
  • And so on

Any areas of timber exposed to high levels of moisture can provide ideal production for wet rot. For wet rot to occur, the moisture content needs to be as high as 50% or above.

What are the symptoms of Wet Rot?

NOTE: Wet rot can be hard to identify without professional training.


  • Localised fungus growth that is growing on timber
  • The timber will feel spongy and darken in colour
  • When the timber is dry, it can crumble into small pieces
  • Damp musty smell will be present.
  • What are the defects associated with Wet Rot?

Wet rot (if unattended) can cause structural damage as the timber affected weakens and loses its structural integrity.

It is advised that a building surveyor / specialist is instructed to carry out a full inspection and provide remedial measures in order to eliminate the Wet rot and long lasting damage.

A quick and sensible option would be to locate and rectify any internal leaks and eradicate the high moisture content within the area.  Ensure that as little moisture / damp gets into any areas that are affected and dry out the area.

If you think there might be wet rot within your existing property or a property that you are considering buying, contact our team today to get some advise or arrange a survey and inspection. Risk Averse Ltd is based in Littleborough, Rochdale, However provides services across the North West and UK.

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