Dealing with improperly sloped slab + puddling

[iced98lx]

Hi Flooring gurus!

I've got a garage (24x30) that is about to be heated (and cooled) but one thing I haven't figured out how to deal with is a slab that doesn't have the proper slope.

Generally speaking water puddles in a few spots and runs to the walls in a couple others.

Ideally I'd like to get the floor all draining to a central drain system...

I'd also like to have a 30 car garage full of my favorite cars

So back to reality, can I over-coat/pour a floor to get the slope I need? I'm aiming to get runoff out the overhead doors, but how do I deal with doors freezing down?

I think the catch comes that this is a flat slab with walls sitting on it, no partial concrete walls.

Is this something concrete contractors do?

Any suggestions are welcome!

 

[iced98lx]

Anyone do any creative flooring solutions to catch and funnel snow melt and water off cars?

 

[ConCretin]

So, what do you mean by improper slope? Most garage slabs are flat and for reference a decent flat floor will not exceed 1/4" of space under a 10' straightedge. A sloped slab will have 1/8" to 1/4" per foot of slope towards drains or the door. It sounds that you have an average flat floor that has puddles when exposed to water.

 

[Tpsykes]

We do plenty of sloping. It is very labor intensive and proper materials are costly. But, it can be done.

 

[Uhlee1]

I’m no expert on how to fix the problem (maybe grind a slope?) but you could get a couple containment parking mats to help and simply squeegee the melt out the door?
https://www.garageflooringllc.com/auto-containment-mat/. They are on clearance right now too?


Sent from my iPad using The Garage Journal mobile app

 

[zeeway]

I had a small scale version of this problem in a previous house, which I fixed by cutting some drainage grooves in the floor using a concrete cutting blade in a circular saw, and then covering the whole floor with Racedeck flooring.

 

[iced98lx]

So, what do you mean by improper slope? Most garage slabs are flat and for reference a decent flat floor will not exceed 1/4" of space under a 10' straightedge. A sloped slab will have 1/8" to 1/4" per foot of slope towards drains or the door. It sounds that you have an average flat floor that has puddles when exposed to water.

I get what you're saying, and yes you're right it's not "improperly" sloped, it's just not sloped I'm guessing.

We do plenty of sloping. It is very labor intensive and proper materials are costly. But, it can be done.

That's what I'm gathering..

I’m no expert on how to fix the problem (maybe grind a slope?) but you could get a couple containment parking mats to help and simply squeegee the melt out the door?
https://www.garageflooringllc.com/auto-containment-mat/. They are on clearance right now too?


Sent from my iPad using The Garage Journal mobile app

Yep, this or some stick down bumpers to contain the water are now a strong possibility. I don't think I can fix the slab.

I had a small scale version of this problem in a previous house, which I fixed by cutting some drainage grooves in the floor using a concrete cutting blade in a circular saw, and then covering the whole floor with Racedeck flooring.

I wonder if cutting grooves would let me move water enough to put a floor drain in or something, not sure... Might be an option to get the floor full of water and see if there is a way to funnel most of it to one low spot.

 

[iced98lx]

Thanks for the responses, much appreciated!!