Replacing garage slab

[zzErik]

Hello,
I'm having the garage floor replaced in the very near future (Hiring someone), for my two car attached garage. I was hoping to get some advice to make sure I get the best results.

- I have a drain in the garage, which I think I'm going to remove, and just have the floor sloped towards the main door. Garage is approx 24x24, how much slope should I have? (Should it not only be sloped back to front, but also slightly side to side, towards the center? The garage door is smaller than garage, and I wouldn't want any snow water or anything running down towards the door, but settling on the inside of the garage, on either side of the door.)
- What's the best rebar options? Three of the foundation walls are brick, and the foundation of the house (which the garage connects to) is poured. Should I only have it pinned to the poured wall? (3 foot spacing ok?). Should there be mesh?
- Plan is to cut two expansion joints, making the 24x24 into four pieces (one cut down the middle, in both directions).
- Is there a good sealer specifically for a garage, to minimize any oil stains etc?
-4000 psi, 4 inches thick.
-garage has had piers installed under block foundation

** Is there anything I should get done, while the floor is being replaced? **

Any advice is greatly appreciated.

Thanks!

 

[CKS1955]

I would not remove the drain. We had a garage once were the floor sloped towards the door (no floor drain) in the winter we would have issues with melting snow/water running towards the garage door and freezing it in place.

Jay

 

[ForceFed70]

I also prefer the drain in the floor. I wasn't allowed without an expensive grease trap setup, inspection, etc. So I opted for slop toward the door.

1/8" per foot is the slope most people recommend.

Even in Canada it's rare for me to experience problems with the door freezing shut. My doors are well insulated, and I keep the shop at 50* when I'm not using it which helps I'm sure.