ᐅ How to Properly Install a Garage Drain for Condensation Water?

Hello,

does anyone know the best way to install a drain for condensation water, etc., in the concrete slab?
I have been considering using grate drains like those found on terraces in front of windows. Apparently, they are available in continuous lengths. Would you simply embed them in the concrete slab, maybe slightly raised so that later a screed layer can be applied to create a slope? Creating the slope directly in the concrete slab (6.5m x 8.50m) seems difficult, right?

Where is the slope usually directed from and to? From front and back to the center, from left and right to the center, or forming four triangular slopes toward the center?

Thanks

Hello,

where is the water supposed to flow once it has entered the gutter? There should be a drain present. I can’t think of any garage off the top of my head that includes a drain. If a lot of water does accumulate, a rubber broom can be used to push the water towards the drainage point in the yard.

Best regards

Michael

where should the water flow

Well, under the slab there will be a drain leading outside, somewhat similar to the toilet drainage in the house.
You can find a lot on Google about garages without proper drainage and incorrect slopes, which often causes a lot of trouble for the owners.
I thought I’d avoid that, and if it’s done correctly from the start, the additional cost should be "minimal".

We have not planned a concrete floor (screed) for our garage. Instead, we will install paving stones with a more refined look, allowing water to seep through into the ground below.

Additionally, we plan a slope toward the garage door. So, if there is a lot of water in the garage that cannot soak away, it will flow toward the exit into a channel covered with a grate.

From there, the pipe connects to the roof drainage pipes leading to the soakaway. We are doing this only because we have decided not to perform oil changes or other maintenance involving disposable liquids ourselves.

A friend of ours is a car mechanic who often performs oil changes and similar work for friends in his garage. He has a drain connected to an external wastewater tank.

Hm, paving actually seems like a good idea, right? I’ll have to discuss it with the planner, but I already suspect it might compromise the calculated structural integrity. It’s meant only to allow water/snow to drain, not oil or other substances.