Can functional tiles be used outdoors beneath rubber tiles?

Functional tiles in Classes 2 and 3 can be used outdoors beneath a rubber tile covering, whereas Class 1 tiles are intended for indoor use only. The class determines the load-bearing capacity and cushioning of the floor build-up.

Within the floor build-up, Class 2 combines load-bearing capacity with resilience underfoot and is commonly used beneath terrace and balcony coverings and paving slabs, and in entrance areas. Class 3 is used where impact cushioning is the main requirement, for example beneath playground surfacing.

Both types of functional tile are made from rubber granules recovered from end-of-life tyres (ELT), withstand frost and are permeable over their whole area. Their underside has square bearing pads with broad, shallow drainage channels, allowing rainwater to drain away beneath the covering on impermeable substrates rather than collecting within the build-up.