In addition to the aesthetic qualities of slate, the material also benefits from a number of highly pratical properties. It is exceptionally durable, unaffected by normal extremes of temperature and is highly resistant to acids, alkalis and other chemicals. It retains its colour, even in UV light and is impermeable to water. In addition, it's non-combustible and compatible with all other building materials. Slate is easily maintained, making it an economical choice for all building purposes and is readily available in a variety of sizes. In many instances it is also a cheaper option to new tiles and, furthermore, has a virtual environmental impact of zero when sourced from an existing building or demolition site. Reusing slates in this manner is a significant component of sustainable development with a huge potential to reduce the impact of new materials and landfills.
