Roofing Slate

Natural slate is the roof covering found on many of the world's oldest surviving buildings due to its early use by man as a roofing material and its durability.


As a roof covering it not only offers longevity of service, but also an abundance of aesthetic appeal due to the natural beauty of the product, with its varying shades of colour and texture.

Natural slates are proven to be durable by the many times that reclaimed slates are installed on roofing projects. With this in mind the Carbon footprint of natural slate compares well with other roofing materials as its lifespan far supersedes alternative tiles.

What is slate?

Natural slate comes from a sedimentary rock formed 500 to 600 million years ago during the Cambrian, Ordovician and Silurian periods of geological history. Chemically, slate is composed of silica and alumina compounds with a smaller proportion of lime, magnesia and iron in the form of sulphide. The different colours of slate available are due to the different chemical composition of rock.

Why choose slate?

Slate has been the chosen roofing material for generations due to the following:

Aesthestics – slates come in a wide variety of sizes, colours and thicknesses.

Effectiveness – as a roof covering, natural slate does the job well. It is unaffected by extremes of temperature and highly resistant to a range of chemicals. It is impermeable to water and therefore is a perfect roofing material.

Cost – the longevity of the material ensures it is a cost effective roof covering as the slates will last the lifetime of the building. Natural slates can also weigh as little as 25 kg/m2 compared with 45kg/m2 for a typical interlocking concrete tile so the reduction in weight can create a cost saving in the roof structure.


All in all, natural slate is the most aesthetically pleasing, reliable and cost effective roof covering to use.