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Laying Artificial Grass on Concrete or Tarmac

Laying artificial grass on concrete is something a lot of our customers worry about. But don’t stress, it’s actually one of the easiest types of installations.

Most of the hard work during an artificial grass installation is groundworks. This is because it’s so important to create a strong, stable and flat surface. But with a concrete or tarmac area, most of the hard work in flattening the surface is already done.

So once you’ve made sure the surface is flat and free of debris, it’s simply a case of rolling out the artificial grass, cutting to size and fixing to the surface.

Get ready to turn that grey concreted area into a fantastic, bright and inviting garden!

Sunny artificial grass garden

Step 1

Clear the area of dirt and debris. Remove all the small stones that can sometimes accumulate on tarmac along with any sticks and leaves.

Step 2

Roll out a Shockpad underlay.

Step 3

Roll out the artificial grass.

Step 4

Cut to size. The easiest way to do this is to fold the grass over and cut the underside.

Step 5

Glue the perimeter. You only need to glue the perimeter as the centre will not move.

Step 6

Brush back the grass and enjoy your transformation.

Cushion the Ground

One main addition that we recommend for installations on concrete is a shockpad underlay. Obviously, a concrete or tarmac floor will be hard and you’ll want to cushion any falls. Our 10mm Nomowflex shockpad underlay is designed to sit underneath the artificial grass and protect against small trips and falls.

The shockpad will create a small and barely noticeable lift in the artificial grass.

The shockpad underlay will need to be installed underneath the artificial grass, but not up to the perimeter. You’ll need to leave a small gap so that you can glue the artificial grass directly to the concrete or tarmac. DO NOT glue the artificial grass to the shockpad, and then the shockpad to the concrete. This will not create a securely fastened perimeter.

Blue 10mm Shockpad

Extra Thick Pile Heights

Because cushioning is so important to installations on concrete, we recommend using artificial grasses with a particularly thick thatch and a tall pile height. This is of course totally optional, but it just helps in adding that little bit of extra comfort underfoot.

The two artificial grasses that we would recommend for the job are Empire and Bliss.

Bliss 50

Bliss is a truly unbelievable artificial grass. with a pile height of 50mm and an extra thick thatch, bliss is a true replica of natural grass, but without the mess or maintenance.

View Bliss 50

Empire

Empire is a long-standing favourite within the business. with a 45mm pile height and an excellent look and feel, Empire if the perfect addition to any family garden.

View Empire

Cracks and Holes

Any large cracks or holes in the tarmac must be repaired before the artificial grass is installed on top. Artificial grass can hold it’s structure to a degree, but a large hole under the surface will be felt by people walking across it. Nomowflex underlay can help in making holes less noticeable, but they are not a magic solution. We recommend that any holes in the surface are properly filled in before the artificial grass is installed.

Lines 6

Spot Gluing Technique

To fix the artificial grass to the concrete or tarmac, you will need to securely glue the perimeter of the area. This should be done using the method of ‘Spot Gluing’. This is where intentional gaps are left throughout the area being glued, so that water can pass through.

If you were to glue in one big continuous line, this would act like a damn for rainwater passing underneath the artificial grass, resulting in water resurfacing out through the drainage holes.

View 330ml Adhesive