CUPA Heavy 3

Heavy 3 is a blue black slate with a slightly gritty texture, and in some samples well defined parallel lines are clearly visible on the cleavage surfaces.

Heavy 3 can last over a hundred years, making it a very cost-effective roofing material.

Its extra thickness of 7-8 mm gives it the perfect strength to withstand any weather conditions while boosting the value of any property.

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CUPA Heavy 3 Main Image

Origin

Quarry Solana de Forcadas. San Pedro de Trones (León) Spain.

Operating since

1982

Formats

Rectangular

Sizes

12x8”, 14x8”, 16x8”, 16x10” and 20x10”

Thicknesses

7-8 mm

Technical Specifications

Absorption
< 0,4% Code : W1 (< 0,4%)
Carbonate Non-Carbonated
≤ 0,2% Fulfil (< 2%)
Mor Characteristic
Longitudinal ≥ 60 MPA
SO2 Exposure Test
S1
Thermal Cycle Test
T1
Freeze Thaw Test
Fulfil < 0,6%

International Certifications

CUPA Heavy 3 roofing slate meets the following international standards:

ASTM C-121 (S1), ASTM C-217 (S1), ASTM C-120 (S1)

BS 680 Part 2

EN 12326

NF 02/09 - Nº 17704

ATG H 571

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