Installation procedure: First check with the manufacturers of the heating system and the flooring that both are compatible. If the under floor heating is set in a screed, make sure that this is thoroughly dried out over a minimum of 3 – 4 weeks. The recommended method is to turn the heating up slowly over about 2 weeks, then run the heating system at the maximum setting for six to seven days and then turn off for 2 days to cool down before installing the flooring. With any under floor heating system it is necessary to turn off the system and allow it to cool down before installing the flooring. Moisture precautions: carefully check the moisture levels in the subfloor and the flooring. It is essential to take great care regarding subfloor moisture as the under floor heating system can act like a pump, drawing moisture up from the subfloor into the wood flooring above. * Radiant screed systems: The screed moisture content must be under 65%RH / 2% TRAMEX. If necessary, use an epoxy DPM (eg Rewmar MB) * Electric systems: Fit a sheet damp proof membrane as per manufacturers instructions. Installation: * Radiant screed systems: The best method is to glue down the floor as it enables the heating system to operate most efficiently. After installation allow two days for the glue to cure before tuning the heating back on. * Electric systems: Float the flooring using an acoustic underlay approved for use with UFH. After installation turn heating system on gradually, increasing temperature by max. 5° C per day. The temperature setting of the heating system must be carefully monitored to ensure that the maximum surface temperature of the floor does not exceed 27°C. The relative humidity should be kept in the range 45% – 65%, which may require the use of a humidifier. .
