Damp and timber defects have long been at the forefront of prospective purchasers’ minds. Here in the UK, we experience our fair share of inclement weather, so having a house that is wind and weather tight is a reasonable expectation for any buyer.
This is a vast subject area! Several publications have been issued by the Building Research Establishment and more recently the RICS, who have collaborated with Historic England and the Property Care Association to produce the joint position statement on investigating dampness and its effects on traditional buildings.
Damp can not only spoil internal decorations, but if left untreated can lead to health issues to occupants. Timber decay is closely associated with dampness and can be as isolated as wet rot noted to a fascia board, to as widespread as a full dry rot outbreak, which can cause significant structural issues.
As surveyors, we are constantly assessing the level of risk associated with defects within building elements and, knowing when to ask for further investigations by a specialist comes with experience and will depend on which level of survey you are providing.
If a property had high levels of dampness internally, inadequate sub floor ventilation, and suspended timber floors, most surveyors would be concerned about the presence of timber decay to the floor/sub-floor and in this case the presence of dry rot, which can be destructive and thrives in stagnant conditions. This is contrasting to noting isolated penetrating dampness around the jamb of a door opening caused by defective external sealing. The repair would be relatively simple and would not warrant further investigation. Traffic light systems/ condition ratings should help the client understand the severity of the defect noted and should be guided in terms of ‘what action’ is required.
If you are concerned about damp and timber defects in your home, we would always recommend that you seek expert advice to help guide you in managing the situation.
Rich Lidsey, Regional Surveying Manager at SDL Surveying