Terrace slabs with pedestals on FPO membrane

  • Erstellt am 2025-06-26 10:41:54

Singelküche

2025-07-07 17:46:47
  • #1
16/32 was always placed on flat roofs is definitely too coarse for this.

A protection mat would always be mandatory for me.

22 m2 approx. one ton of gravel

Aluminum is lighter
 

netzplan

2025-07-07 21:46:42
  • #2

Too coarse to lay terrace tiles. What else should one use as a gravel layer instead?
My roofer said that with gravel and terrace slabs (instead of pedestals) the water drainage is also worse. But with 16/32 you would normally have enough buffer between the stones for the wastewater.
 

netzplan

2025-07-09 08:02:27
  • #3
I spoke again with my roofer. He said that if I want to lay the terrace slabs/tiles without pedestals, then 16/32 is not suitable, but gravel is. Under the gravel, definitely fleece or protective mats. Because of the gravel, the water would not drain as well. He would still recommend pedestals. (Die selbst-nivelierenden oder noch besser, das mit Aluminium-System)
 

netzplan

2025-07-11 08:21:53
  • #4
Status / Info: I ordered a few self-leveling pedestal supports for testing purposes. Let's see if they are more comfortable.

For installation without pedestal supports and water drainage:
Would it be possible to lay the terrace tiles on 16/32 gravel? Then the water drainage would at least be somewhat better than with crushed stone.
 

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