Cumbrian Black slate is quarried from Kirkby quarry situated on dramatic Kirkby Moor, just above the village of Kirkby-in-Furness in south Cumbria. It is a sedimentary metamorphic stone formed in the Silurian period, some 300-350 million years ago and has been used as a walling stone and paving for over 400 years. Its huge flexural strength and low porosity, bestowed upon it by the metamorphic process it has undergone, make it particularly suitable for use in the landscape and ensures that it stands the test of time.
In its natural state it is an even blue grey colour throughout, producing a homogenous and impactful paving and can be worked to produce complimentary setts, steps and copings. Landscape architects and designers around the world have long taken advantage of its uncomplicated and striking natural beauty, durability and adaptability to create classic landscaping designs.
Cumbrian Black slate has been used for generations as a walling stone to create quintessential Lake District building envelopes. It is still available today in this traditional format to maintain existing Lake District properties and to construct new buildings in the National Park that sit seamlessly in their environment, and architects inspired by the unique Lake District vernacular are making striking use this stone to dramatic effect further afield in the UK to create stunning, individual stone walling façades.
To compliment Cumbrian Black walling stone we can produce lintols, cills, quoins and cappings to allow the designer to construct the building envelope from one stone.