Floorify floors have not been extensively tested on heating foils so we do not recommend it.
This type of underfloor heating, which is installed on top of the subfloor, heats up very quickly when compared to conventional systems that are integrated into the subfloor. You could compare it with IR heating, which is glowing hot after just a few seconds. The floor will heat up very quickly and have less time to adjust or expand, which could cause tension to form. Contact with the floor is also more direct in nature, which could cause local hotspots. Underfloor heating that is integrated into the subfloor will distribute the heat more evenly over the entire surface.