How To Put A Concrete Floor In An Existing Garage

You can use a dense foam insulation around the edge of the slab and use that to guide your screeding.

How to put a concrete floor in an existing garage.

Allowing the concrete to dry too much between pours will create layers and make the concrete weaker. If more than 2 5 cm 1 inch shim the joists near the door trim the joists at the opposite end or do both. Place them 16 inches apart. Place the steel rods or rebar around the edges of the freshly poured concrete mix and through the middle of your floor if working with a large area.

6 empty a 40 pound bag of concrete resurfacer into a 5 gallon bucket to make. Place duct tape over existing expansion joints. Lay the joists on edge across the width of the floor. Measure the slope if any of the floor from the garage front to the door.

Laying a concrete floor in an existing building takes some special skills and tools. The taller the joists the more room for insulation and warmth of the floor. Pour concrete onto the existing slab until it is around where you want the final level to be. Divide the garage into sections no larger than 144 square feet each.

Have the bars prepared before pouring. You can set screed guides rails that you first use to get it flat then pull and fill in the void they leave. Fill in the area with gravel 3 4 and compact it. This is especially important in a wet climate.

Add all of the concrete right away so none of the mixture has a chance to dry out. Pour concrete for the new floor. Make sure you have enough concrete to fill the entire area to the depth you desire. Nail cross blocking boards to hold the joists together every 4 feet.

These bars will provide strength to the concrete. Put in place a vapor barrier. Some are designed to be left in place as expansion joints. Install wire mesh or fiber mesh as reinforcement.