Yes, you can. But be aware that Floorify underlay has been specially developed for combination with all Floorify rigid vinyl floors. All of the properties of Floorify rigid vinyl floors that we mention have been tested and measured in combination with this Floorify Comfort underlay (thermal resistance, impact resistance, sound absorption, etc.).
In addition, Floorify underlays are the perfect underlay for underfloor heating.
If you opt for a different underlay and it causes damage to the floor, the extended warranty that Floorify extends for its products will become void.
Floorify has 2 different types of underlay: the Perfomance underlay and the Comfort underlay.
Check here which underlay you should choose for your project.