What is Wet Rot?

Wet rot is a type of fungal decay that affects timber and other wood-based materials when they are continuously exposed to moisture or high humidity levels. It is caused by specific types of fungi that thrive in damp conditions, usually where there is poor ventilation or water leaks. Unlike dry rot, which can spread through masonry and other building materials, wet rot is limited to the damp wood it directly affects.

The fungi responsible for wet rot break down the cellulose and lignin present in timber, leading to its deterioration. Common signs of wet rot include a damp or musty smell, soft and spongy wood that easily crumbles, discoloration, and the presence of fungal growth (often appearing as a black or dark brown mass).

Wet rot can compromise the structural integrity of affected wood, potentially leading to significant damage if left untreated. To address wet rot, it is crucial to eliminate the source of moisture and ensure the affected area is adequately dried. Damaged wood may need to be repaired or replaced, and it is advisable to treat the remaining wood with a suitable fungicidal solution to prevent further fungal growth.

It’s important to note that if you suspect wet rot or any type of structural damage in your property, it is recommended to consult a professional surveyor, builder, or damp specialist to assess the situation and provide appropriate guidance for repair and remediation.