Diagnosing Damp

Lydia Robinson and Lawrence Grigg try to get to the heart of what’s causing the damp problems in their Grade II-listed property, Mabel’s Farmhouse

Anyone who has lived in a pre-1940s building – one with solid wall construction and no damp-proof course – will appreciate the importance of what we call ‘damp management’. We describe it as management because inevitably with an old building, damp will be present in some form, and the purpose is not to eliminate it altogether but instead ensure that it is at an appropriate level for the building and its occupants. Damp is one of the biggest risks to old buildings, therefore having a strategy to manage it is key when living in one. Essentially, damp is excessive moisture in a building, which either directly enters the building (often through a failure), is diffused through the air or condenses on a surface. Ironically, the worst cases of damp in historic…

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Homebuilding & Renovating (Digital) - 1 Issue, May 2018

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