Dry rot in a detached apartment block in Folkestone


Client: KCS Chartered Surveyors

Folkestone is a port town on the English Channel, in Kent, south-east England. During the 13th century, it subsequently developed into a seaport and the harbour developed during the early 19th century to provide defence against a French invasion and expanded further after the arrival of the railway in 1843.

The timber specialists at Timberwise Kent were called to a detached mansion apartment block in Folkestone, to investigate problems with damp and a suspected dry rot outbreak, following a leak from a rainwater downpipe. Our inspection of the basement, ground floor, first floor and second floor confirmed an extensive outbreak of penetrating and rising damp. The apartment block also showed signs of a previous dry rot outbreak, especially within the floor timbers. The decayed timber flooring was beyond repair as it was also infested with wood boring weevil, death watch beetle and common furniture beetle.

timber affected by dry rot

Pictured above: Timber affected by dry rot

Pictured below: Walls affected by penetrative and rising damp


Dry rot, in certain circumstances, can cause serious damage due to its rapid growth. Spores will germinate and grow in timber with moisture content anywhere between 20% and 30%. Timberwise recommended that dry rot treatment was carried out as soon as possible.

The ground floor timber had decayed beyond repair, our trained technicians removed the infected wood in order to gain access to the area under attack. Technicians then carried out drilling, irrigation and sterilisation of the exposed masonry complemented with a surface application of chemical treatment.

The permanent chemical deposit on the treated timbers will prevent any possibility of an attack reoccurring and will enable the structure to dry out and prevent remaining dry rot spores from germinating. Within the basement, as the block timber flooring had been infested with wood weevil and infected with wet rot, Timberwise recommended removing the timber floor altogether and installing a cavity drain system with a mixture of sand and cement spread over the floor on top the membrane.

To combat the rising damp, Timberwise technicians used DriWise a unique to Timberwise water-repellent cream product. This water-based product is injected directly into the walls into the first horizontal mortar joint above the internal ground floor level. This simple and efficient installation of a damp proof course requires minimal preparation and application time minimising disruption and ensuring peace of mind.


Arranging a Timber Survey

Have you identified signs of dry rot in your property? If so, contact Timberwise to arrange a timber survey. Simply call your local office or complete the on-line timber survey request form. For further information and advice on dry rot check out our dry rot information pages on this website.

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