Guardian Building Products produce a wide range of roofing materials ideal for DIY or trade customers. They produce an excellet Rubberlok rubber paving slab which is the perfect alternative to your traditional concrete paving slabs for walkways or sitting areas outdoors.
They also manufacture a great alternative slate tile called the Guardian Slate. This slate looks exactly like a real slate tile but with alot lesser weight meaning your can install faster for your smaller pitched roofs. Ideal for conservatories and roof extensions.