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Damp problems can affect any property, especially in Scotland where the rain never seems to stop.Many different damp problems are often lumped together under the term ‘damp’ however, understanding what type of damp problem your property is suffering from is important if you want to correctly treat the damp issue.
In this damp problems section you will find useful information and DIY tips along with guides on how to identify and eradicate common damp problems that your property may be suffering from.
Contact our damp experts Typically there are three common types of damp problem that affect properties: If moisture is coming in through the roof or higher up the walls you are most likely dealing with a penetrating damp problem.
‘You can actually see the house breathing as darker spots in the paint appear and disappear over time,’ says owner Sasha Wardell It’s generally accepted that moisture from the ground can rise about a metre up the walls of your house if there’s a problem with the damp-proof course.
Damp proof courses were first required on houses built after 1875, and are usually evident as a wide mortar joint near the base of the main walls, typically comprising a couple of layers of slate, or a similar water-resistant material.
Wetness in lower walls is usually due to other causes, such as condensation on steamy windows running down the wall and soaking in, or raised flower-beds or paving stones allowing damp to get past the damp-proof course.
In this house, which is built into a bank, the arch in the kitchen has been lime rendered and lime paint applied on top.
The usual response to any form of damp is to have the walls pressure-injected with a liquid silicone damp-proof course, via lots of small holes drilled into the mortar just below floor level.
This, however, should be a last resort since it is rarely effective; the work is often badly carried out, with damp-proof courses injected in the wrong place, plus it doesn’t work at all in thick stone walls.
Together with their unsavoury cousins, wet rot and beetle infestation, this can be enough to scare even the most intrepid homebuyers.
To make matters worse, such problems are frequently misdiagnosed, resulting in unnecessary and expensive ‘remedial work’.