You need to put down the 6 mil vapor barrier first and then pour 1 inch of concrete over your existing floor.
Water on garage floor solution.
Water under garage doors.
There are a few reasons however to rethink this bare minimum approach to dealing with your garage floor s issues.
Calling the professionals to install a garage floor drain.
Solution is weatherstripping the joints at the outside edge.
So if there s a bit of water it ll settle sort of below the tile surface.
The solution to this spring and summer problem is simple.
These interlocking tiles can guide the water away from your garage at least offering a temporary solution for moisture management.
To stop water vapor from coming up through the garage floor i feel the best way is to install a thin concrete overlay over your existing floor.
This concrete needs to contain very small pea gravel no larger than 3 8 inch diameter.
Garage floor tiles are made available with numerous groove patterns and easy to clean surfaces so if you don t feel like taking a jackhammer to your garage for a new drainage system this is a good compromise.
They have tiles available from a number of manufacturers that sit on top of the garage floor but they re perforated.
Opt for a solvent based sealer which can create a wet look and offer exceptional floor protection or a water based sealer that might not last as long but is less harsh to breathe in.
When there is a lot of water in the garage i use a squeegee to push it out and then onto the grass along the pad unless it s winter another way to move the water outside is with an electric leaf blower be sure the outlet you plug it into is gfci protected even if the blower is double insulated.
Mix a half cup baking soda in a gallon of warm water and use it as an all purpose cleaner.
Warm air on cool concrete creates a vapor that settles and turns into water on the garage floor.
You can also mix baking soda with a few drops of liquid soap to make a paste and use it to scrub light stains.
A water aborbent pad could be taped down to help but it s a little unsightly.
Thanks again for all y all do.
If that s not happening with you what you might want to think about is putting in a garage flooring system.
5 direct rainfall coming through joints in garage door or between the door and the side frame though water staining on the inside of the door or frame should be obvious in that case.
Keeping out rain and snow.
For regular cleaning a solution of baking soda and water will loosen dirt and grease and help keep your garage floor clean.