CUPA HEAVY 3 - Blue Black slate

Natural blue-black slate with a slightly gritty texture, and in some samples well defined parallel lines are clearly visible on the cleavage surfaces.

Another obvious feature of the slate is the presence of metallic cubes approximately 2 mm in size. Sometimes these cubes are randomly distributed throughout the slate, while in other cases they are concentrated in discrete bedding layers. These cubes are iron sulphide, known as pyrite. Heavy 3 is the suitable choice for repair and replacement of traditional roofs in Scotland.

Features and benefits:

• Impermeable to water.

• Weather and UV resistant.

• Chemical resistant not affected by chemicals or pollutants (acid or alkali).

• Not damaged by fungi, moss, insects, animals or birds.

• Strong, while weighing substantially less than man-made roofing tiles.

• Non-combustible.

Warranty:

Warranty available of up to 100 years on our natural slate products.

Application:

For roof pitches.