Hello,
I have an unpleasant task ahead of me and would like to hear your opinions on the best options and solutions.
Our terrace was concreted, but the slope is not correct at the front and back. Tiles will also be installed. I cannot add more material because that would make the terrace door too high.
The terrace is about 38m2 (410 sq ft), and I need to lower it by about 2-4cm (0.8-1.6 inches). Of course, not the entire area, but most of it needs to be adjusted.
Is grinding alone sufficient here? Does it need to be milled first and then ground? I plan to rent the necessary equipment. Is it realistically possible to grind down 2-4cm (0.8-1.6 inches) of concrete?
It’s very frustrating, but you always learn afterwards...
Thanks in advance!
I have an unpleasant task ahead of me and would like to hear your opinions on the best options and solutions.
Our terrace was concreted, but the slope is not correct at the front and back. Tiles will also be installed. I cannot add more material because that would make the terrace door too high.
The terrace is about 38m2 (410 sq ft), and I need to lower it by about 2-4cm (0.8-1.6 inches). Of course, not the entire area, but most of it needs to be adjusted.
Is grinding alone sufficient here? Does it need to be milled first and then ground? I plan to rent the necessary equipment. Is it realistically possible to grind down 2-4cm (0.8-1.6 inches) of concrete?
It’s very frustrating, but you always learn afterwards...
Thanks in advance!
K
Knüllwald4 Jul 2022 12:40With a concrete grinder, just like with a floor sander, you can’t create a slope in anything. You can certainly sand flat surfaces. Half a centimeter (0.2 inches) is not a big challenge.
But sanding a large terrace surface to create a slope while keeping it relatively level, removing 2 to 5 centimeters (1 to 2 inches) thick—that’s unlikely.
If things go wrong, you might even grind into the steel reinforcement at the front.
It’s better to try to work a slope into the tiles. However, this only works if there is enough height at the back near the door.
But sanding a large terrace surface to create a slope while keeping it relatively level, removing 2 to 5 centimeters (1 to 2 inches) thick—that’s unlikely.
If things go wrong, you might even grind into the steel reinforcement at the front.
It’s better to try to work a slope into the tiles. However, this only works if there is enough height at the back near the door.
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