Pour New Garage Floor Over Old

Set up a drain for the garage.

Pour new garage floor over old. Pouring concrete over old concrete instead of directly over a new gravel foundation limits your ability to maximize the slab s lifespan. When pouring new mix over old concrete make the mixture stiffer than usual by adding less water. If your concrete garage floor has seen better days you can apply a concrete overlay to give it a new lease on life. In the picture above we re pouring a new concrete floor for a garage over the existing concrete floor.

The condition of the existing slab is the primary factor that determines how long the new concrete will last. Old habits die hard. Today s residential building code does not include this requirement. The garage is an old structure 1946 made from cinderblock walls on a concrete floor.

The rationale for requiring this little step was that it would prevent spilled gasoline gasoline vapors and carbon monoxide from getting inside the house. Smooth the surface using a two by four or float then add texture as desired using tools or a broom. Taking a weekend to learn how to pour a garage floor is an easy process that will provide you with an even sturdy floor for years to come. Building codes used to stipulate that the floor of an attached garage be four inches lower than the floor level of the house.

Adding 5 or 6 inches of concrete to your existing garage floor should be just fine if the existing concrete floor is in good condition meaning it hasn t settled drastically or heaved from freeze thaw cycles. Pour concrete for the new floor. Enjoy your new garage. The old concrete floor was very worn on the surface.

Spread the new concrete over the surface filling the entire area within the form you created. Install wire mesh or fiber mesh as reinforcement. You could see the aggregate in many places. Some areas had deteriorated up to a half inch deep.

Put in place a vapor barrier. Before you begin any cracks must be repaired so you aren t just masking old. Fill in the area with gravel 3 4 and compact it. Given that garages usually house dirty cars tools and other household items many homeowners choose to floor their garages with simple cement.