How To Put A Concrete Floor In An Existing Garage

6 empty a 40 pound bag of concrete resurfacer into a 5 gallon bucket to make.

How to put a concrete floor in an existing garage.

This is especially important in a wet climate. Pour concrete onto the existing slab until it is around where you want the final level to be. Measure the slope if any of the floor from the garage front to the door. Put in place a vapor barrier.

Divide the garage into sections no larger than 144 square feet each. Place duct tape over existing expansion joints. Pour concrete for the new floor. Allowing the concrete to dry too much between pours will create layers and make the concrete weaker.

Fill in the area with gravel 3 4 and compact it. 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. Laying a concrete floor in an existing building takes some special skills and tools. Make sure you have enough concrete to fill the entire area to the depth you desire.

These bars will provide strength to the concrete. Have the bars prepared before pouring. The taller the joists the more room for insulation and warmth of the floor. Install wire mesh or fiber mesh as reinforcement.

Lay an impermeable membrane on the raw concrete as a vapour barrier. Install either 2 by 2 2 by 4 or 2 by 6 joists over the garage floor depending on how much room you have floor to ceiling. You do not need to wait for the scratch coat layer to dry completely. Place them 16 inches apart.

If more than 2 5 cm 1 inch shim the joists near the door trim the joists at the opposite end or do both. Some are designed to be left in place as expansion joints. You can use a dense foam insulation around the edge of the slab and use that to guide your screeding. Lay the joists on edge across the width of the floor.