If you are still looking for options of your underfloor heating, feel free to drop me an email with your floorplans and floor build up and I'll get something worked out for you: ###############
Hi Don777 this may be possible to do without needing to re-screed the floor if there is some existing insulation under the slab. Feel free to drop me an email with your floorplans and build up of your floor to: ############### and i'll work out your options
see...