ᐅ Terrace construction: aluminum rails supported by building protection mats
Created on: 8 Jul 2025 19:17
H
harkonsen
Hello everyone,
We are currently having our terrace constructed, and I have a quick question about the build-up.
The landscaper prepared the base and finally installed edging or border stones about 8 cm (3 inches) high, which are placed on a weed control fabric.
Now the carpenter, who is supposed to finish the terrace, was here. Today he laid his aluminum substructure directly on the edging stones – however, the substructure is not resting directly on them; instead, it is supported by construction protection mats of varying thicknesses. In almost every spot, more or fewer mats were used to level it out.
This seems a bit improvised to me. Shouldn't the landscaper have already precisely prepared the correct heights and slope during the base construction?
So my question is:
Is this a common and acceptable practice, or is it more like poor workmanship or a temporary solution that is better to avoid?
Thank you in advance for your opinions and experiences!
We are currently having our terrace constructed, and I have a quick question about the build-up.
The landscaper prepared the base and finally installed edging or border stones about 8 cm (3 inches) high, which are placed on a weed control fabric.
Now the carpenter, who is supposed to finish the terrace, was here. Today he laid his aluminum substructure directly on the edging stones – however, the substructure is not resting directly on them; instead, it is supported by construction protection mats of varying thicknesses. In almost every spot, more or fewer mats were used to level it out.
This seems a bit improvised to me. Shouldn't the landscaper have already precisely prepared the correct heights and slope during the base construction?
So my question is:
Is this a common and acceptable practice, or is it more like poor workmanship or a temporary solution that is better to avoid?
Thank you in advance for your opinions and experiences!
H
harkonsen9 Jul 2025 07:48The aluminum rails are supported with building protection mats up to 4.5 cm (1.75 inches) thick. I believe 1-2 cm (0.4-0.8 inches) is common, but that much seems unusual to me.
N
nordanney9 Jul 2025 08:03harkonsen schrieb:
The aluminum rails are supported up to 4.5 cm (1.8 inches) with protective building matsIf the base is that uneven, there is no other option. I see this as completely unproblematic. It would have been possible to work more precisely beforehand, so that only one pad would need to be placed under each rail…
harkonsen schrieb:
The aluminum rails are supported with building protection mats up to 4.5cm (1.75 inches) thick. I believe 1-2cm (0.4-0.8 inches) is common. But that much seems strange to me. To me, it sounds like the first person created a slope and the second now wants to lay everything flat. I don’t consider these "rubber wedge towers" to be truly load-bearing.
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