Wet & Dry Rot
CAUSES OF DRY ROT
- Lower ground level damp
- Rising damp
- Penetrating dampness through walls/chimneys and roof coverings
- Plumbing leaks
IDENTIFYING DRY ROT
- Rust red coloured spore dust regularly seen around fruiting bodies
- A silky grey to mushroom coloured skin frequently tinged with patches of lilac and yellow often develops under less humid conditions
- Active decay produces a musty, damp odour / damp musty smell
- Damp issues in the property need to be solved before any treatment can be made, this is because dry rot treatments will become ineffective if the timber becomes damp again which will effectively lead to the infection.
Wet Rot, sometimes referred to as cellar fungus, is a wood destroying fungi that attacks timber/wood in order to obtain food to preserve growth by producing a generation of spores which proliferate to attack more timber. If left untreated, it will destroy the structural strength of timber. Wet rot happens when a large amount of moisture exists in timber over time which leads to the softening of the timber.
The minimum level for wet rot is generally considered to be 30% WME and the optimum is between 50 and 60%. Timbers with a WME of 20% or less are not at risk of wet rot infections.
IDENTIFYING WET ROT
- Signs of dark, damp wood/timber
- Dry timber that is easily cracked and crumbles into fine particles.
- A damp, musty smell