Features we love Improves heat-up times by up to 90%Reduces heat lossWaterproof and soundproof propertiesStrong and flexible design – withstands loads of up to 30 Tonnes / m2Range of thicknesses from 6mm - 50mmFor use on both floors and wallsEasy to cut and shape All about meInsulation is key to maximising the energy-efficiency of an underfloor heating system helping to reduce heat-loss and improving the heat-up time of a floor heating system.Using Warmup Insulation Boards greatly improves the energy-efficiency of an underfloor heating system. They prevent heat from passing through from the heater to the subfloor pushing the heat produced upwards onto the floor surface where you want it. Insulation Boards are available in a wide range of thicknesses. View User Manual » . View Tech Sheet ». .