M
MurphyBS9910 Jul 2025 17:18Hello everyone,
we are planning to redesign our terrace. So far, it is covered with concrete slabs, and we would like to replace them with porcelain tiles.
There is a concrete slab underneath the current terrace.
The total thickness up to the top edge is about 17 cm (6.7 inches).
The current structure consists of approximately 8 cm (3 inches) of crushed stone with gravel and the concrete slabs on top.
Since we want to fix the new terrace tiles firmly, I plan to lay them wet-on-wet in drainage concrete.
My question is: Do I still need a drainage mat between the crushed stone and the concrete slab, or could the drainage mat be installed between the crushed stone and the drainage concrete?
A plastic membrane was installed under the concrete slab originally.
The house wall will be waterproofed again, and I want to place an insulation strip between the wall and the crushed stone/drainage concrete to decouple the structure.
Does this setup seem appropriate?
we are planning to redesign our terrace. So far, it is covered with concrete slabs, and we would like to replace them with porcelain tiles.
There is a concrete slab underneath the current terrace.
The total thickness up to the top edge is about 17 cm (6.7 inches).
The current structure consists of approximately 8 cm (3 inches) of crushed stone with gravel and the concrete slabs on top.
Since we want to fix the new terrace tiles firmly, I plan to lay them wet-on-wet in drainage concrete.
My question is: Do I still need a drainage mat between the crushed stone and the concrete slab, or could the drainage mat be installed between the crushed stone and the drainage concrete?
A plastic membrane was installed under the concrete slab originally.
The house wall will be waterproofed again, and I want to place an insulation strip between the wall and the crushed stone/drainage concrete to decouple the structure.
Does this setup seem appropriate?
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