This underfloor heating system is made by solflex. This an over lay system so is very good for retro fit installations. Meaning there is no need to dig up floors and screed it in. The panels for this particular system are made out of a gypsum based board. These are glued together, meaning this floor is very strong. Perfect for tiling straight onto. It will also take all other floor coverings. The room that this installation was supplying is a new kitchen / diner knock through. A large space which is perfectly heated by underfloor heat. This is the best and most economical way to heat the home. We connected up a Hive heating thermostat for control also.