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In a lot of cases, people laying artificial grass are replacing a natural lawn. We’ve covered that in our other guide on how to lay artificial grass, but it’s also a popular way to liven up an old patio or concrete surface. Luckily, it’s incredibly simple to do. This process also works with wooden surfaces like decking, as long as the gaps between the boards are small.
What you’ll need to lay artificial grass on concrete
The main thing about laying artificial grass on top of concrete, stone, or paving, is whether the surface is good enough and whether there’s adequate drainage.
Is the surface in good condition?
Undoubtedly, this is the most important question. To be able to lay artificial grass on concrete or paving, it needs to be mostly flat, stable, and without major cracks.
By major cracks, we mean anything that is wider than 20mm. If a crack is this big then there is likely more damage that you can’t see underneath and it’s not wise to install artificial grass on top of it. Smaller cracks can be filled with self-levelling compounds during the process, as these shouldn’t be a major issue.
If there are any wobbly slabs or stones, or the concrete itself is damaged, loose and coming apart, then it’s unlikely to be able to take an artificial lawn on top.
Is the surface even?
Small undulations on the surface shouldn't be an issue. You can lay artificial grass on uneven concrete as these bumps can be remedied later in the process with sand and compounds. However, large bumps or depressions are again likely to cause problems. Anything less than 20mm above or below the main surface should be able to be rectified with sand but anything higher is likely to cause problems with the artificial grass.
If you think you’re unable to lay artificial grass on your existing concrete or paving, you should take it up and either lay a new solid base, or follow our guide for the more ‘traditional’ way to lay artificial grass.
Is the drainage sufficient?
Drainage is another thing to consider. Although artificial grass holds water well, if the existing surface retains too much water, it’s not ideal to lay turf on top of it. The only real way to check is to wait for good ol’ British weather to do its thing. If not, a hosepipe will do the trick.
Unless the puddles are significant, it won’t be an issue - you can simply drill some holes to allow the water to drain away.
How to join artificial grass
If you’ve got a large garden (you lucky thing), you may need to join two pieces of artificial grass together. To do this, you need to buy joining tape and adhesive that is suitable for outdoor use, then follow these simple instructions:
Now have a cup of tea, or something stronger, and admire your new lawn! Artificial grass should last decades with proper care, so have a look at our rather handy artificial grass care guide.
How hard can it be? Save money and do it yourself with our simple step-by-step guide to laying an artificial lawn.
Grab your calculator! From the turf itself to installation costs, our handy guide can help you work out the price of your new lawn.
Learn how to keep your artificial grass looking top notch with tips and tricks from our experts.
Everything you need to know about buying artificial grass - the good, the bad, and the ugly.
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