Laying Paving Stones On Existing Concrete

Fill the joints with the mortar mix.

Laying paving stones on existing concrete.

The most important tip you must create a drainage layer 1 of bedding sand below the pavers. Second the height of the installation will obviously be higher than it was. Lay the paving slabs leaving 8 to 10mm spaces between them 7. 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.

Determine the design and placement. Mark the area 2. For many southern california homeowners the thought of tearing up existing concrete and upgrading to paving stones sounds overwhelming and costly. 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. 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. Dig a bed that s 105mm deep 3. The existing concrete pad must slope away min 1 of fall for 8 feet of run from any structures to ensure drainage.

Laying patio slabs on concrete. Any stiff brush will do but a deck stripping brush on a broom handle makes it easier. This may not be a big deal with certain applications but in others it may be problematic. 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.

Pavers are normally laid over a sand and rubble base so laying them over existing concrete will require a different approach. What tools do i need. Luckily there may be a simple solution that will help increase the curb appeal of your home. For instance if you put pavers over a concrete patio the height of the patio will be increased by the height of the brick.

Mix the concrete one part cement to six parts ballast 5. Installing pavers over the existing concrete. Add a 50mm sub base layer 4. 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.

Clean your patio surface with a hose or pressure washer to get the firmest grip from your mortar. Add a 30mm layer of concrete mix 6.