Installing Flagstone Over Concrete Slab

These are the easiest type of flagstones to use as they install similarly to ceramic tile.

Installing flagstone over concrete slab.

Keep this drainage slope in mind when adding your pavers and make sure the edge that drains water stays low and permeable. 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. 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. 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.

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. Before you begin make sure your concrete is properly sloped and doesn t puddle. Fluctuating soils soil erosion and maturing root systems should be the only concerns one has when deciding to to pour a concrete slab. 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.

This page will focus on the installation of the random flagstone. Installing pavers over concrete enables you to get creative with the look and style of your patio. 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. Called soldier rows these outside bricks create a stable frame for the inside pavers.

Lay bricks around the concrete slab s outside edges with brick narrow sides facing outward. 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. Remove broken pieces of slab brush off debris and use a level to ensure that the cement sections are flat and even. Rectified flagstones are those that have been machine tooled to a regulated thickness and size.