HEAVY 3 slate was first extracted from the CUPA PIZARRAS Quarry Number Three near San de Pedro de Trones village, Northern Spain in 1892. During these 125 years HEAVY 3 has earned its reputation as a reliable and versatile product.

Slate characteristics depend on where it has been extracted – these vary according to which quarry it has come from, as well as the company producing it. With such a long pedigree, CUPA PIZARRAS’ confidence in its products and its high standards of quality are further substantiated by its unwavering 100-years warranty.

HEAVY 3 possesses a breadth of aesthetic and practical advantages; medium-grained and blue-black in colour with occasional quartz grains detectable on the surface, it is visually appealing. Also, as well as being impermeable, non-combustible, UV resistant and unaffected by chemicals and pollutants, HEAVY 3 is repellent to the growth of mould and fungi making it suitable for all environmental conditions.

The benefits extend further still - significantly thicker than all of its competitors, HEAVY 3 provides maximum endurance against the high wind speeds and driving rain that is so common throughout Scotland and is therefore ideal for new-build roofing projects too.

Managing Director of CUPA PIZARRAS Eduardo Mera said: "HEAVY 3 is one of our most sought after slates and it’s easy to see why. Not only does this product measure in at an impressive 7.5mm thickness, HEAVY 3 also has a track record of 125 years’ success, further affirming its remarkable worth.”