Can You Lay Brick Pavers Over Concrete Patio

Can You Lay Brick Pavers Over Concrete Patio?

Laying brick pavers over an existing concrete patio can be a practical and cost-effective way to upgrade your outdoor space. While it is possible to install pavers over concrete, it is essential to consider certain factors and follow proper installation techniques to ensure a durable and aesthetically pleasing result.

### Considerations Before Laying Pavers Over Concrete

Concrete Condition:

Assess the condition of the concrete patio to ensure it is level, stable, and free of major cracks or damage. If the concrete is uneven or cracked, it may require repairs before laying pavers.

Height:

Brick pavers are typically 2-3 inches thick, so it is important to consider the height difference when installing them over an existing patio. Ensure that the finished height of the pavers will not create obstacles or drainage issues.

Moisture:

Concrete tends to absorb and retain moisture, which can affect the stability of brick pavers. Installing a vapor barrier between the concrete and pavers will prevent moisture from migrating and compromising the installation.

### Installation Steps

Prepare the Concrete Surface:

Clean the concrete patio thoroughly to remove any dirt, debris, or efflorescence. Use a muriatic acid solution to etch the surface and improve adhesion. Rinse thoroughly with water afterward.

Install a Vapor Barrier:

Lay down a polyethylene sheet or tar paper over the concrete as a vapor barrier. Overlap the seams by a few inches and secure them with tape.

Create a Mortar Bed:

Spread a layer of mortar over the vapor barrier, starting at one end of the patio. Use a screed or a straight edge to level the mortar and achieve the desired slope for drainage.

Lay the Pavers:

Start laying the pavers from one corner, working your way outward. Use a rubber mallet to gently tap them into place and ensure they are level. Maintain a consistent joint spacing throughout the installation.

Compact the Pavers:

Once the pavers are laid, use a plate compactor to compact them firmly into the mortar bed. This will help stabilize the installation and prevent shifting.

Fill the Joints:

Spread a sand-based jointing compound over the pavers and use a broom to work it into the joints. Use a hose to rinse the surface and remove any excess jointing compound.

Seal the Pavers (Optional):

To enhance the durability and appearance of the pavers, apply a penetrating sealer after the installation has fully cured. This will protect the pavers from stains, fading, and moisture damage.

By following these steps carefully, you can achieve a professional-looking and durable brick paver patio over an existing concrete surface. Remember to consider the factors discussed earlier and pay attention to detail during the installation process.