Installing Flagstone Over Concrete Slab

Remove broken pieces of slab brush off debris and use a level to ensure that the cement sections are flat and even.

Installing flagstone over concrete slab.

Since they are uniformly sized you can spread an even layer of thinset mortar on top of the concrete and install the flagstones like tiles. These are the easiest type of flagstones to use as they install similarly to ceramic tile. Prepare the cement walkway for the flagstone. Cut flagstone is easier to work with but is more expensive.

You ll have the freedom to play around with different layouts and patterns in order to create an outdoor living space that gels with your unique personality. Because you already have the concrete patio you are eliminating the often time consuming task of having to pour a slab of concrete before laying your stones. The flagstones are placed in the bed of mortar and then the joints are filled with either sand or additional mortar or colored grout. Rectified flagstones are those that have been machine tooled to a regulated thickness and size.

The biggest problem with laying pavers over a concrete slab is the inability for water to drain through the blocks and down into the earth. While it s recommended that you lay a 4 to 6 inch base layer of pea gravel or sand beneath your flagstone path do it yourselfers laying flagstone over cement generally skip this step. Before you begin make sure your concrete is properly sloped and doesn t puddle. Lay bricks around the concrete slab s outside edges with brick narrow sides facing outward.

To install flagstone in this method wet mortar is applied either directly on a subbase of compacted gravel and sand or to an existing concrete slab. Fluctuating soils soil erosion and maturing root systems should be the only concerns one has when deciding to to pour a concrete slab. Flagstone its beautiful and rustic appearance makes it the perfect choice for homeowners that are looking to build a new patio driveways or walkway or just want to update an existing patio. Called soldier rows these outside bricks create a stable frame for the inside pavers.