Water vapor barrier for a concrete flooring system

1. A water vapor barrier material for a building structure comprising:

a base entangled net material; and

a composite nonwoven;

said composite nonwoven including a film layer with a nonwoven layer on each side of said film layer;

said film layer having a water vapor transmission rate of less than 10.0 g-MIL/100-in 2 /day at a temperature of 100 degrees Fahrenheit and 90 percent relative humidity.

2. The water vapor barrier material for a building structure of claim 1 where said film layer having a water vapor transmission rate of less than 5.0 g-MIL/100-in 2 /day at a temperature of 100 degrees Fahrenheit and 90 percent relative humidity.

3. The water vapor barrier material for a building structure of claim 1 where said film layer having a water vapor transmission rate of less than 2.0 g-MIL/100-in 2 /day at a temperature of 100 degrees Fahrenheit and 90 percent relative humidity.

4. The water vapor barrier material for a building structure of claim 1 where each of said nonwoven layers being attached to said film layer by a plurality of point bonds.

5. The water vapor barrier material for a building structure of claim 4 where said point bonds having a land area of 2-50%.

6. The water vapor barrier material for a building structure of claim 5 where said land area being between 5-30%.

7. The water vapor barrier material for a building structure of claim 5 where said land area being between 10-15%.

8. The water vapor barrier material for a building structure of claim 1 where said nonwoven layers being spunbonded nonwoven layers.

9. The water vapor barrier material for a building structure of claim 1 where said nonwoven layers having a basis weight of between 20 g/m 2 and 40 g/m 2 .

10. The water vapor barrier material for a building structure of claim 1 where said nonwoven layers having a basis weight of between 25 g/m 2 and 35 g/m 2 .

11. The water vapor barrier material for a building structure of claim 1 where said base entangled net material comprising:

a polymeric material being melt fused together where a plurality of bonding points being distributed within said base entangled net material.

12. The water vapor barrier material for a building structure of claim 1 where said base entangled net material having a thickness being between 4 mm and 22 mm.

13. The water vapor barrier material for a building structure of claim 1 where said base entangled net material having a thickness being between 6 mm and 19 mm.

14. The water vapor barrier material for a building structure of claim 1 where said base entangled net material having a compressive load strength greater than 30,000 psf.

15. A building structure with a water vapor barrier comprising:

an inner structure;

an outer structure; and

a water vapor barrier material between said inner structure and said outer structure comprising:

a base entangled net material; and

a composite nonwoven;

said composite nonwoven including a film layer with a nonwoven layer on each side of said film layer;

said film layer having a water vapor transmission rate of less than 10.0 g-MIL/100-in 2 /day at a temperature of 100 degrees Fahrenheit and 90 percent relative humidity.

16. The building structure with a water vapor barrier of claim 15 where said inner structure being a subflooring and said outer structure being a flooring.

17. The building structure with a water vapor barrier of claim 16 where said flooring being selected from the group consisting of: a hardwood flooring; a soft-wood flooring; a tile; a hardenable material; a carpet; a gypsum topping; a light-weight concrete; a cementitious self leveling material; a mortar bed; a thin-set; a concrete topping; and combinations thereof.

18. The building structure with a water vapor barrier of claim 16 where said flooring being selected from the group consisting of: a gypsum topping; a light-weight concrete; a cementitious self leveling material; a mortar bed; a thin-set; a concrete topping; and combinations thereof.