Wavin has extended and enhanced its ultra-slim Thermoboard Low-Build plumbed underfloor heating (UFH) range with the introduction of Low-Build 25. Thermoboard Low-Build is a UFH solution where height is at a premium – whether in new build or retrofit situations – or where the existing flooring substrate presents challenges.<br> <br> Thermoboard Low-Build 25 is specifically designed for installation over existing subfloors and consists of 25mm deep insulation panels with pre-fitted heat diffuser and pre-routed channels for UFH pipe. Complementing Thermoboard's Low-Build 15 product – which is 15mm thick and ideal for single heating zones not greater than 26m2 – Low-Build 25 is ideal for multiple heating control zones and/or areas greater than 26m2. It is also suitable where build height is important but not critical, existing skirtings are to be replaced and existing doors are to be replaced, removed or planed.<br> <br>