Home Condensation Explained Condensation 14 - "How can I check for condensation?"
Condensation 14 - "How can I check for condensation?" PDF Print E-mail

Unless you actually see condensation in the form of water droplets on a surface at the time you look, you will not know if it occurs on that surface at any other time in the 24 hour cycle of that property. The occurrence of condensation depends upon  many variables such as the frequency of water vapour generating activities taking place within the property, climatic conditions outside etc. Therefore if you are concerned about a possible condensation problem it is sensible to monitor for its presence over a period of time. So how is monitoring undertaken?

'Data loggers' are available that record air temperature and relative humidity levels at predetermined time intervals over extended periods. Several data loggers would need to be positioned in the areas of a property to be monitored for a period of time as well as one outside for comparison purposes. The results are then downloaded into a computer with the appropriate software and graphs plotted for interpretation. Surface temperature readings would also be required to compare the dew point temperatures calculated from the readings recorded by the data loggers and their proximity to the wall surface temperatures.

Another more simple monitoring method is to use a HumiditectTM Condensation Indicator. These are small foil backed self adhesive cards with three different chemically impregnated dots. They are stuck directly onto the surface to be monitored and each dot reacts at different levels of humidity by 'bleeding' into the surrounding card. The foil backing prevents any interference from behind and the three reactions are calibrated to indicate the likelihood of condensation as low, medium or high. Once they have reacted the process is non reversible. These cards are available from Safeguard Europe Ltd.

Contact Peter: Email - info@dampdecay.co.uk - Telephone: 015242 71794