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MatSchirm29 May 2023 23:30Hello,
I wasn’t able to find an answer online and hope you can help...
I have a terrace with stone tiles on drainage concrete. Since I would like to have a cantilever umbrella but don’t like the large base frames with concrete slabs (which also take up too much space), I was wondering if it would be possible to install internal thread anchors with injection mortar into the terrace, so that the support tube can be screwed in.
Do you think this could work?
Thank you for your advice and tips!
P.S.: The photo is from the construction phase. Unfortunately, I cannot cast in a ground sleeve because there is a garage underneath and the structure height is too low.

I wasn’t able to find an answer online and hope you can help...
I have a terrace with stone tiles on drainage concrete. Since I would like to have a cantilever umbrella but don’t like the large base frames with concrete slabs (which also take up too much space), I was wondering if it would be possible to install internal thread anchors with injection mortar into the terrace, so that the support tube can be screwed in.
Do you think this could work?
Thank you for your advice and tips!
P.S.: The photo is from the construction phase. Unfortunately, I cannot cast in a ground sleeve because there is a garage underneath and the structure height is too low.
M
MatSchirm30 May 2023 14:12Thank you for your response. Initially, we also wanted an awning, but since it was unfortunately not planned by the developer during construction, making the facade suitable for an awning would require considerable effort (dismantling the facade, behind which there is facade membrane, an air cavity, another facade membrane, thermal insulation, Overtec, and then reinforced concrete).
I might be able to check with the construction company from back then whether there is any risk in drilling a hole into the terrace. Otherwise, the option with tiles remains (even though, as I mentioned, I don’t find them very appealing).
I might be able to check with the construction company from back then whether there is any risk in drilling a hole into the terrace. Otherwise, the option with tiles remains (even though, as I mentioned, I don’t find them very appealing).
The umbrella has to be constantly adjusted to follow the sun, yet you only get one sunny spot because the faster ones are already sitting in the shade.
Try going to a sun protection store with a large showroom and show them your photo. There are systems with four legs that are not conservatories.
Try going to a sun protection store with a large showroom and show them your photo. There are systems with four legs that are not conservatories.
How about a base where you can crank the chassis in and out? That way, it would also be movable.
We have a large umbrella from Glatz. But without a ground socket, it simply doesn’t work.
To absorb the forces, you will need many long concrete anchors (which isn’t possible for you).
We have a large umbrella from Glatz. But without a ground socket, it simply doesn’t work.
To absorb the forces, you will need many long concrete anchors (which isn’t possible for you).
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