Floor construction covered with ceramic tiles

1. A floor construction, comprising:

a film-like plastic mat comprising a nub panel having support elements comprising nubs disposed in a uniform area distribution, hollow towards an underside, said nubs being adapted for supporting and projecting out beyond a top of the mat, said mat having lower contact surfaces disposed between the nubs, wherein said mat is embedded and attached, supported in a still soft, hardening thin-bed mortar layer on a sub-floor, over a full area of the mat, by the lower contact surfaces and said nubs having upper contact surfaces;

channels formed between the nubs and being adapted for carrying open water;

a water-permeable or vapor-permeable covering of a non-woven fabric or woven fabric disposed on top of the nubs and attached to the upper contact surfaces;

lower nubs disposed between all or individual ones of the nubs that carry the covering, said lower nubs having undercuts on a lower side, for clamping thin-bed mortar that has penetrated; and

ceramic tiles laid on and directly attached to the covering with a thin-bed mortar layer.

2. The floor construction according to claim 1 , wherein the nubs that carry the covering have undercuts, in a region of their open underside, for clamping the penetrated thin-bed mortar.

3. The floor construction according to claim 1 , wherein the individual nubs are configured as a truncated pyramid.

4. A floor construction according to claim 1 , wherein the nubs, in a transition region from an underside contact surface to a nub wall, have a step forming a ring surface.

5. The floor construction according to claim 1 , wherein the plastic mat is configured to be adhesion-improving on its contact surface.

6. The floor construction according to claim 5 , wherein a grid-like woven fabric is applied on the underside of the plastic mat.

7. The floor construction according to claim 5 , wherein the underside of the plastic mat that forms the contact surfaces has a roughened structure.

8. The floor construction according to claim 5 , wherein the portions of the underside of the plastic mat that form the contact surfaces are provided with a rough coating.

9. The floor construction according to claim 1 , wherein a height of the lower nubs corresponds to approximately half of a height of the other nubs.

10. A floor construction, comprising:

a film-like plastic mat having support elements comprising nubs disposed in a uniform area distribution, hollow towards an underside, said nubs being adapted for supporting and projecting out beyond a top of the mat, said mat having lower contact surfaces disposed between the nubs, wherein said mat is embedded and attached, supported in a still soft, hardening thin-bed mortar layer on a sub-floor, over a full area of the mat, by the lower contact surfaces;

channels formed between the nubs and adapted for carrying open water;

a water-permeable or vapor-permeable covering of a non-woven fabric or woven fabric disposed on upper contact surfaces of the nubs; and

ceramic tiles laid on and directly attached to the covering with a thin-bed mortar layer,

wherein the nubs, in a transition region from an underside contact surface to a nub wall, have a step forming a ring surface.

11. The floor construction according to claim 10 , wherein lower nubs are disposed between all or individual ones of the nubs that carry the covering, said lower nubs having undercuts on a lower side, for clamping thin-bed mortar that has penetrated.

12. The floor construction according to claim 11 , wherein the nubs that carry the covering have undercuts, in a region of their open underside, for clamping the penetrated thin-bed mortar.

13. The floor construction according to claim 11 , wherein a height of the lower nubs corresponds to approximately half of a height of the other nubs.

14. The floor construction according to claim 10 , wherein the individual nubs are configured as a truncated pyramid.

15. The floor construction according to claim 10 , wherein the plastic mat is configured to be adhesion-improving on its lower contact surface.

16. The floor construction according to claim 15 , wherein a grid-like woven fabric is applied on the underside of the plastic mat.

17. The floor construction according to claim 15 , wherein the underside of the plastic mat that forms the contact surfaces has a roughened structure.

18. The floor construction according to claim 15 , wherein the portions of the underside of the plastic mat that form the contact surfaces are provided with a rough coating.

19. A floor construction, comprising:

a film-like plastic mat having support elements disposed in a uniform area distribution, hollow towards an underside, said support elements being adapted for supporting and projecting out beyond a top of the mat, said mat having lower contact surfaces disposed between the support elements, wherein said mat is embedded and attached, supported in a still soft, hardening thin-bed mortar layer on a sub-floor, over a full area of the mat, by the lower contact surfaces;

channels formed between the support elements and adapted for carrying open water;

a water-permeable or vapor-permeable covering of a non-woven fabric or woven fabric disposed on top of the support elements;

a grid-like woven fabric applied to the lower contact surfaces; and

ceramic tiles laid on and directly attached to the covering with a thin-bed mortar layer,

wherein the plastic mat is a nub panel and wherein said support elements are nubs that are open towards the underside, the nubs having upper contact surfaces that carry the covering, and

wherein lower nubs are disposed between all or individual ones of the nubs that carry the covering, said lower nubs having undercuts on a lower side, for clamping thin-bed mortar that has penetrated.

20. The floor construction according to claim 19 , wherein the nubs that carry the covering have undercuts, in a region of their open underside, for clamping the penetrated thin-bed mortar.

21. The floor construction according to claim 19 , wherein the individual nubs are configured as a truncated pyramid.

22. The floor construction according to claim 19 , wherein a height of the lower nubs corresponds to approximately half of a height of the other nubs.

23. A floor construction, comprising:

a film-like plastic mat having support elements disposed in a uniform area distribution, hollow towards an underside, said support elements being adapted for supporting and projecting out beyond a top of the mat, said mat having lower contact surfaces disposed between the support elements, wherein said mat is embedded and attached, supported in a still soft, hardening thin-bed mortar layer on a sub-floor, over a full area of the mat, by the lower contact surfaces;

channels formed between the support elements and adapted for carrying open water;

a water-permeable or vapor-permeable covering of a non-woven fabric or woven fabric disposed on top of the support elements;

a grid-like woven fabric applied to the lower contact surfaces; and

ceramic tiles laid on and directly attached to the covering with a thin-bed mortar layer,

wherein the plastic mat is a nub panel and wherein said support elements are nubs that are open towards the underside, the nubs having upper contact surfaces that carry the covering, and

wherein the nubs, in a transition region from a lower contact surface to a nub wall, have a step forming a ring surface.

24. The floor construction according to claim 19 , wherein the plastic mat is configured to be adhesion improving on its lower contact surface.

25. The floor construction according to claim 24 , wherein the underside of the plastic mat that forms the contact surface has a roughened structure.

26. The floor construction according to claim 24 , wherein the portions of the underside of the plastic mat the form the contact surface are provided with a rough coating.