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Natural Slate CUPA HEAVY 3 - Blue Black

Name: Natural Slate CUPA HEAVY 3 - Blue Black
Brand: Cupa Pizarras
SKU: qHw3qKmZvAHmuTiviKcE9v

Verified by manufacturer 27 days ago

Cupa Pizarras

Third party certifications:

Carbon Footprint Standard
Certificate type

CUPA HEAVY 3 - Blue-black natural slate with non-rusting metallic particles and thin laminations. Split to an average thickness of 7.5 mm.

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BOS

+44 (0) 20 3318 4455 Website

Application

For roof pitches.

Description

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

A feature of this slate is the presence of metallic cubes of iron sulphide, known as pyrite, 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. Heavy 3 is the suitable choice for repair and replacement of traditional roofing 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.
Metallic cubes on the surface.

General information

Color	Black Blue
Finish	Textured
Material	Slate
Shape	Rectangle
Length	Bespoke
Width	Bespoke
Height	7.5 mm
Warranty description	50 year Guidance for specification option: Warranty available of up to 100 years on natural slate products.

Uniclass	Pr_25_93_72_56 Natural slatesPrimary
CAWS	H62/105 Roof slating H62/110 Roof slating with counterbattens H62/3 Roof slating H62/5 Roof slating with counterbattens

Product range	Natural Roofing Slate

Specification data - Natural slates

Slate size	-
Length (minimum)	300 mm. 350 mm. 400 mm. 500 mm.
Width (minimum)	200 mm. Guidance for specification option: Not available with 500 mm. 250 mm. Guidance for specification option: For 400 mm and 500 mm only.
Standards	-
Product specification	To BS EN 12326.
Properties	-
Type	Normal.
Dimensional tolerances	Complies.
Nominal thickness and individual thickness variation	Complies.
Characteristic modulus of rupture (Transverse)	≥ 45 MPa.
Characteristic modulus of rupture (Longitudinal)	≥ 50 MPa.
Water absorption	0.22–0.28%.
Thermal cycle test	Code T1.
Carbonate content	0.4–0.46%.
Sulfur dioxide exposure test	Code S1.
Non-carbonate carbon content (maximum)	0.39%.

Standards methods of test	To BS EN 12326.
Characteristic modulus of rupture (transverse)	62–64.6 MPa
Characteristic modulus of rupture (longitudinal)	62–64.6 MPa.
Thickness	3.5 mm. 7–8 mm.
Specific weight	2.74 gm/cm³.