Datum Phase Change Limited is a leading manufacturer specialising in incorporating phase change materials into building products under the brand name ThermaCool™, for use in both new build construction and retrofit of commercial and residential buildings.

ThermaCool™ products are passive systems incorporating bio-based phase change materials that increase the thermal mass of lightweight and super insulated buildings and will reduce the energy consumption of climate control systems in buildings.

From an economic perspective ThermaCool ™ products are best used for supplying additional cooling capacity during hot weather and savings can be made on the mechanical cooling system and more use can be made of free (night time) cooling via natural ventilation systems.

Our products offer competitively priced, easy to install solutions that yield significant energy and carbon savings for your building.