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Data loggers of the DL-Series

Stains on the external walls of buildings are not just unsightly, they can be a real eyesore. Such discolourations can easily disfigure otherwise fetching house façades and spoil the look of whole houses. Yet what many people who decide to take the matter into their own hands often fail to realise is that by scrubbing away at the stains or by seeking to conceal them under a thick lick of paint, they only are treating the symptoms and not the cause.

What is first needed before any steps are taken to remove the stains is a thorough inspection of both the staining and the type of building materials involved. Only then will you be able to get a clear picture of the extent of the damage and only then will you be able to get to the root of the problem. Dark streaks or staining on the outer walls, for example, can be a clear indication for leaking pipes or rainwater from rusty drainpipes or overflowing gutters that has worked its way into the brick or plasterwork. Unfortunately, such stains can equally have a variety of other causes. Strange as it may seem, they can even come from inside the building: rooms that are not aired or heated properly provide ideal breeding grounds for mould and mildew which thrive on moist and dank conditions. The damage caused by mould can be extensive and cost thousands of pounds to rectify.

That’s why a data logger makes so much sense. Data loggers provide you with accurate information on the temperature and the relative humidity in the rooms in which they have been installed. Ideally they should be used over a period of at least 14 days so that enough information can be collected. The Smart Graph software included in the scope of delivery then allows you to read out the data and carry out an exact assessment.

Such an assessment would reveal all you really need to know about the room climate. It shows you whether the average temperature and the mean relative humidity recorded by the data logger are within the guidelines recommended by most experts in the field. These guidelines state that the average room temperature should be 20C and that the relative humidity should be somewhere between 30-65%. The graphic generated by the software also shows where exactly the temperature dropped dangerously close to the dew point. As soon as the temperature drops lower than the dew point, condensation forms and is soaked up by the walls. And if the building materials that are used are colder than the dew point temperature of the air that comes into contact with them, then this will also result in condensation and inevitably dark staining on the inner and even outer walls.

There can be a number of reasons why the temperature drops below the dew point: it can be because of the way the room is used or it can have something to do with the faults in the construction of the building. Such information can prove to be invaluable both to tenants and landlords who want to get to the bottom of the cause of the unsightly discolourations in order to carry out the necessary repairs and stop costs from spiraling.

So although investing in a data logger might just seem a small step, it is in fact a giant leap towards checking and controlling the climate in your house, home or flat.

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