green roofs

Expanded Clay Media used as substrate for Green Roof Project – Warwickshire, UK

Expanded Clay UK have recently supplied the media for a Green Roof project in the Warwickshire, UK. Green Roofs are not only striking and aesthetically attractive, they also have key beneficial factors;


– Improve Air Quality

– Regulates the buildings temperature

– Reduces Carbon Footprint

– Reduces Noise Pollution


Our Expanded Clay is used as the growing media due to the product being lightweight, spherical in shape to allow aeration around the roots and the ability to hold 30% of its weight in water to feed the plants during dry periods.


For more information or a quotation please Contact Us

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Expanded clay Lightweight-Aggregate

Expanded Clay (UK) increases production in 2021

Due to high demand for our Lightweight Expanded Clay Aggregate, we have increased production for Quarter 1. We now have more stock available on the ground ready for larger projects. We have increased volumes of production for all of our grades to satisfy our current and new customer needs. Our Expanded Clay comes in 50 litre bags, IBC bulk Bags or loose  in bulk truck loads.

For more information please click on the following links: Expanded ClayContact Us

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Expanded Clay used for Sports turf

Sports fields across the UK are steadily replacing grass with artificial turf to assist with all weather conditions, allowing teams of all levels to play and train on surfaces throughout the whole year. Using Lightweight Expanded Clay underneath the artificial surface, the media provides good insulation in the winter months and great water drainage to combat waterlogged pitches. Expanded clay is a lightweight aggregate manufactured from naturally occurring clay.  It is non-toxic, disease free, chemically inert and has a neutral pH. Also being lightweight, installation and transportation of the material is lower than rival products.


If you would like additional information, please Contact Us.

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Green Wall 4

Expanded Clay – The Best Support Media for Green Walls

Expanded Clay (UK) has recent supplied our Expanded Clay Media for a large Green Wall project in the South East, UK. Not only the Green Walls look aesthetically great, it also offers insulation to save on heating costs and produces Oxygen to promote a healthier communal space. Our Expanded Clay is also widely used within the Green Roof industry for the same reasons.


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2021 Increase in Bagging Production for Expanded Clay UK

Due to high demand in 2020, Expanded Clay UK has increased its production at the bagging plant. We now store more material of our 50 litre small bags and 1.25m3 bulk bags at our warehouses. Both are available for immediate dispatch on a next day delivery service. We can offer single pallet or full truck load deliveries.

Please note we also offer all our grades loose in bulk for larger geotechnical projects.


If you would like an Expanded Clay Media quotation please Contact Us

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Pic - 1

Expanded Clay – The Perfect Lightweight Drainage Media

Expanded Clay is a great media when used as geotechnical backfill. Being easy to install with its spherical shape, lightweight, providing good insulation around underground piping and offering excellent drainage capabilities.

Also depending on the size of the project, we offer the Expanded Clay Media in either 50 litre packs, 1.25m3 IBC Bulk Bags or loose in bulk.


For more information please Contact Us

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expanded clay Limecrete Flooring

Lightweight Expanded Clay for Limecrete Floors

Expanded clay is widely used in limecrete flooring due to its light weight and resistance to heat & pressure. Expanded Clay can reduce earth pressure by 75% compared with conventional materials used in construction. We offer our Expanded Clay in 50 litre bags or IBC bulk bags depending on your project requirements.

For more information or a quotation please Contact us

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Slurry Tank

Lightweight Expanded Clay coverings on Slurry Tanks

Expanded Clay offers a floating covering solution for slurry tanks and lagoons. The main benefits are listed below:

  • Durable and resistant natural clay mineral material without any hazardous or artificial components.
  • Adsorption capacity towards H2S and several other compounds including ammonia and methane so the filter will start removing odour instantly.
  • Up to 80% reduction in hydrogen sulphide emissions
  • Reduced ammonia emission by up to 80%
  • Proven ability to effectively retain nitrogen
  • A 10 cm layer can remove up to 80% of the contaminants

Covering slurry tanks with Lightweight Expanded Clay is an effective method for reducing ammonia emissions and is a requirement for all new storage facilities on installations covered by IPPC.

By installing a layer of Expanded Clay this serves to meet regulatory compliance by handling the residual ammonia that would otherwise be released to atmosphere. The Expanded Clay floats on the surface of lagoons, storage tanks and run off areas to control the release of Hydrogen Sulphide (H2S)AmmoniaMethane and other odours.

Environmental regulations set by DEFRA ensures that the levels of harmful gas released from waste management processes must be reduced to a minimumThe unique properties of Expanded Clay prevents harmful gases escaping into the surrounding countryside – potentially causing damage and pollution to the local area. These initiatives, and targets set by government to reduce gas emissions (including ammonia) and the removal of foul odours of slurry tanks is a major challenge for many farmers.

A quick and simple solution is to pour Expanded Clay directly on top of the slurry, which acts as an effective floating protective cover for a slurry tank or lagoon. A 10cm layer of Expanded Clay poured over slurry limits the emission of harmful gases and foul odours by up to 85%. The Expanded Clay floating cover solution is designed for reducing gas emissions (mostly ammonia) from liquid animal waste.

The lightweight nature of Expanded Clay means that the aggregate simply floats on the surface of the lagoon or slurry tank, making it a cost effective, quick and simple solution in the prevention of harmful gases and odour. The iron oxides in the clay mineral structure acts as a catalyst for chemisorption of Hydrogen Sulphide (H2S)AmmoniaMethane and other organic compounds.

The floating cover solution can significantly reduce the capital costs involved in digestate storage solutions, while offering significant financial returns through the retention of nitrogen. This also reduces the financial costs required for the on-going maintenance required for alternative types of covers such as floating plastic covers and other fixed covers, which depending on the size of the lagoon can be extremely expensive, time intensive and difficult to install.


We recommend using Expanded Clay 10-20 mm and which has a bulk density of 350 kg / m3.


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Expanded Clay in Horticulture

Using Expanded Clay for Horticulture

Expanded Clay is seen as a great media to be used within horticultural hydroponic setups. The Expanded Clay is lightweight, it is inert, it has a neutral pH and can retain 25% of its weight in water, this allows for plants to be fed during dry seasons. Expanded Clay is also beneficial to plants as its spherical shape allows good aeration around the roots for optimum growth.


Our Expanded Clay Media comes in 3 different sizes; 0-5mm, 4-10mm and 10/20mm to cater for all plant types.



For more information please click on one of the following links; Technical InformationContact Us

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