We have a hall at the bottom of a terraced house, which is built with a slab on ground (at least the part where the hall is, which is an extension to the original house). Today, there is first a blue Platon mat on the slab and then some dull laminate flooring on top of that. The baseboards in the hall are the type with small air gaps behind them meant to ventilate (seems to work rather poorly). The floor is both quite ugly and also feels a bit too flexible. We suspect that the floor lies directly against the Platon mat under.
We are now planning to replace this floor, and since it is an entry hall, we are mainly considering some sort of tile and therefore have a few questions:
1. Do you lay the tiles directly on the slab without any Platon mats or distance layers for ventilation or such?
2. Is it possible to install underfloor heating for a tiled floor in that case, or does it require additional insulation of the slab and thereby excavation and things that sound expensive?
3. Are there any reasonable alternatives to "regular" underfloor heating to create a slightly more comfortable climate if point two above is not possible?
4. Is there anything else to consider that could be a negative effect of switching from laminate flooring to tiles other than the floor feeling colder if there is no heating? (This is purely an entry hall where we only are when dressing/undressing to go outside, and other more normal living areas are on the floors above this one)
