For large areas use a floor buffer with a grinding attachment.
How to float a garage floor.
A clean garage floor can help prevent oils and residues from being tracked into your home and regular maintenance of your floor will increase its lifespan.
To begin cleaning you should clear and tidy the floor.
Use a wire brush or a grinder or an acid substitute to prepare the concrete.
Insulating concrete garage floors begins with covering the entire floor with 6 mil polyethylene which will serve as a vapor barrier.
How to fix a spalling garage concrete floor.
Trowel a patch kit onto the surface.
Run the polyethylene up the sides of the walls 3 to 4 inches and secure to the walls with construction tape.
Spalling or concrete surface failure on a garage floor is caused by residual water in the concrete expanding and contracting during freeze thaw cycles.
However an out of kilter garage floor may require leveling when two critical scenarios happen.
You ll also need to buy or rent some special tools so expect your total cost to be about 300 for this how to resurface concrete project.
If you need to level low spots on your floor use a concrete patching compound.
First the floor may be so out of level that the garage floor does not meet the bottom edge of the door.
Time to get building again.
Overlap the seams about 6 to 8 inches and seal the seams with waterproof construction tape.
Second and far more critical is when the garage floor has begun to tilt backward toward the house.
If you have a concrete floor you should scrub it using a broom.
The garage conversion requires the floor to be raised to match the house so first job is to build a suspended floor.
Pretreat any oil grease or rust stains before mopping the floor.
Vacuum up loose material.
How do you fix low spots in garage floor concrete.
A garage floor should have enough slope for it to drain but it should not have low spots that allow water to puddle.
If you have the height to raise the concrete floor 1 5 inches you can use a pea stone concrete mix and pour a new floor over the existing one.
Use a de greaser to remove oil from the surface.
A floating floor is simply a floor that does not need to be nailed or glued to the floor underneath it.
I would find the highest point of the existing concrete floor go 1 5 inches over that then raise the back of the floor enough to get pitch away from the house and to the garage doors.