Andreas2001
2016-06-21 22:05:06
- #1
Hello everyone,
our house is now 6 years old and we want to replace the terrace slabs (at that time we had simple concrete slabs laid for cost reasons). Now there should be porcelain stoneware tiles on it. A landscaper took a look at it and also checked under the slabs. He found that the layer of grit is quite thick, about 8-10 cm at the inspected spot. Below that was the gravel, no idea how thick that is, maybe this layer is thinner.
The landscaper advises us to remove and redo the substructure because too much grit was used. Since the new tiles are about 2 cm thinner, in addition to the 8-10 cm, there would be 2 cm of grit on top, so it would then be about 10-12 cm.
Is that really too much? Why is that a problem??
our house is now 6 years old and we want to replace the terrace slabs (at that time we had simple concrete slabs laid for cost reasons). Now there should be porcelain stoneware tiles on it. A landscaper took a look at it and also checked under the slabs. He found that the layer of grit is quite thick, about 8-10 cm at the inspected spot. Below that was the gravel, no idea how thick that is, maybe this layer is thinner.
The landscaper advises us to remove and redo the substructure because too much grit was used. Since the new tiles are about 2 cm thinner, in addition to the 8-10 cm, there would be 2 cm of grit on top, so it would then be about 10-12 cm.
Is that really too much? Why is that a problem??