Product Focus: Foam Underlay

Product Focus: Foam Underlay


Ever since the birth of artificial grass back in the 1960s, installing fake grass in conjunction with a foam underlay has been very popular for a wide variety of applications and uses.

Our high-performing foam underlays are tough, durable and free-draining, making them a perfect addition to any fake lawn.

There are many benefits of installing a foam underlay; in today’s article, we’re focusing on our 10mm and 20mm foam shockpads and answering some of the most commonly asked questions regarding the use of foam underlays.



Why Use a Foam Underlay?


NeoGrass Artificial Grass Foam Underlay Shockpad 1

A foam underlay will give any artificial lawn a soft and springy feel underfoot.

This is perfect for those with children, as it will help to soften the impact of any trips or falls, and it will make you feel like you are walking on air.

Foam underlays are perfect for use in school applications as they comply with the Head Impact Criteria, ensuring a safe playing environment for children of all ages.

The Head Impact Criteria (or HIC) is an internationally recognised measure for the likelihood of injury.

This makes installing a foam underlay under fake grass the ideal solution in school or playground applications, where there is a risk of head injury as a result of falling from items of play equipment.

But it’s not only safety reasons that make choosing a foam underlay for your artificial lawn a great option.



Perfect for Roof Gardens and Balconies


Another ideal use for a foam underlay is in the case of roof gardens and balconies.

In the vast majority of cases, with this type of application, artificial grass is secured to an existing hard surface, such as concrete.

By installing a foam underlay to your roof garden or balcony, you’ll prevent any undulations in the existing surface from being visible through the synthetic turf, whilst also providing a softer surface for foot traffic.



Ideal for Installing on Concrete, Paving & Decking


Artificial Grass on Concrete - Step 3

A popular use for artificial grass is to install it on top of existing surfaces, such as concrete, paving or decking.

When carrying out this type of installation, it’s vitally important to install a foam underlay on top of the existing surface.

This is because without a foam underlay to mask any undulations in the existing surface, they will be visible through your artificial grass. For example, if you were to install synthetic turf directly on top of decking, the decking boards would be visible through the turf.

For further information on installing artificial grass on concrete, please see our guide, here.



Free Draining


When choosing a foam underlay for any application, it’s vitally important to choose one that is free draining.

Some types of foam underlay act like sponges and absorb any liquids that run through the artificial turf.

This can be a particular problem for dog and pet owners. The last thing you want is for the foam to trap any unwanted odours, such as urine.

NeoGrass Artificial Grass Foam Underlay Shockpad 2

By implementing equally spaced drainage slots, our foam underlay has been designed to be completely free-draining. Any liquids will be channelled straight through the foam and down through the sub-grade.

This permeability also prevents any surface water from pooling on your artificial grass, and means the foam will not expand and contract as it absorbs water, ensuring a high performing artificial lawn, come rain or shine.



What Size Options Are There?


Our foam is available in two different depths: 10mm and 20mm.

We generally recommend a 10mm foam in most instances, such as for a standard garden lawn or when installing artificial grass on concrete, decking or paving.

The 20mm foam is ideal for those looking for a luxuriously soft artificial lawn that is springy underfoot. The 20mm underlay is also ideal for playground applications, where the risk of injury is high.

Our 10mm foam is supplied in 1.95m widths, up to a length of 100m.

Our 20mm foam is also supplied in 1.95m widths, up to a length of 50m.



How do You Install a Foam Underlay?


artificial grass foam underlay

Foam underlays are installed directly underneath the artificial grass.

In a typical fake grass installation, the foam underlay would be installed on top of a sub-base consisting or either MOT Type 1 or granite/limestone chippings.

The artificial grass would then be secured to the foam underlay using either a 2-part adhesive or Aquabond, with an optional layer of weed membrane inserted between the fake grass and the foam.



What Type of Artificial Grass is Best Used with a Foam Underlay?


All of our artificial grasses can be installed in conjunction with either a 10mm or 20mm foam shockpad.


However, for roof gardens and balconies, we highly recommend Tempo. This 22mm fake turf has been designed specifically for use on roof gardens, balconies and terraces.

For these types of application, choosing an artificial grass with a dense pile is extremely important as your fake grass will be mainly viewed from above, and the denser the pile, the more realistic your turf will look.



How to Order


Our 10mm and 20mm foam underlays are available for purchase online, through our NeoGrass approved installer network, and from our retail partners.

Alternatively, you can call us on 01245 931200 to place your order.


If you have any questions regarding our foam underlays or our range of artificial grass, then please leave your questions in the comments section below.

We look forward to hearing from you.




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