Laying Paving Stones On Existing Concrete

Pavers on concrete without sand are held in place using mortar.

Laying paving stones on existing concrete.

Clean your patio surface with a hose or pressure washer to get the firmest grip from your mortar. Determine the design and placement. The existing concrete pad must slope away min 1 of fall for 8 feet of run from any structures to ensure drainage. Mark the area 2.

Second the height of the installation will obviously be higher than it was. The process is nearly identical to laying a paver patio over ground. According to several paver manufacturers paving blocks can be installed on top of concrete without mortar if you first lay down a 1 2 to 1 bed of coarse sand. Laying pavers over a concrete patio may work fine since it will experience little stress but a driveway constructed in this way may not be able to stand the stresses of vehicles.

This may not be a big deal with certain applications but in others it may be problematic. The most important tip you must create a drainage layer 1 of bedding sand below the pavers. For instance if you put pavers over a concrete patio the height of the patio will be increased by the height of the brick. Any stiff brush will do but a deck stripping brush on a broom handle makes it easier.

Laying patio slabs on concrete. In doing so you allow for any water to drain away from pavers and off of the concrete slab remember the thinner the bedding layer the greater risk of damaging the pavers. Add a 50mm sub base layer 4. Remember your aim is to extend your living environment so it s vital that the flow from indoor to outdoor space becomes seamless.

Mix the concrete one part cement to six parts ballast 5. Installing pavers over the existing concrete. Luckily there may be a simple solution that will help increase the curb appeal of your home. How to lay paving stones to get started scrub the border area photo 1 with a concrete cleaner or muriatic acid mixed with water check the label for mixing and safety instructions.

Pavers are normally laid over a sand and rubble base so laying them over existing concrete will require a different approach. Fill the joints with the mortar mix. If the existing paving is poorly laid or has been laid on unacceptable spot bedding the permanent imposition of an additional 60 200kg per square metre depends on paving bedding type and thickness may be sufficient to cause movement settlement or collapse of the whole pavement. Even if the pre existing bedding seems sound it may not be adequate to support and distribute all that extra weight.

For many southern california homeowners the thought of tearing up existing concrete and upgrading to paving stones sounds overwhelming and costly. Dig a bed that s 105mm deep 3.