Samaca 66
Vianzola Quarry
Samaca 66 comes from a quarry located in the area of Lardeira, within the municipality of Carballeda de Valdeorras (Ourense, Spain). The quarry is operated as an open-pit site and belongs to the Rozadais formation of the Upper Ordovician (approximately 455–435 million years ago).
This is a grey slate with a rough texture and a highly uniform tone. It is characterised by its ease of installation and its ability to contribute to cost reduction, while maintaining good performance in application.
Formats and sizes
SQUARE
RECTANGULAR
ROUND
50X25
40X20
40X22
40X25
35×20
*Other formats and sizes available on request.
Technical characteristics
Samaca 66 complies with all CE regulations, as well as the Belgian ATG standard and all requirements for construction materials.
Water absorption
W1
Thermal cycle
T1
SO₂ exposure
S1
Carbonate content
1.3%
Non-carbonate carbon content
0.3%
Flexural strength Modulus of rupture
Longitudinal: 32 Mpa Transverse: 35 Mpa
Reaction to fire
Class A1
Emission of hazardous substances
None under roofing or discontinuous cladding conditions
Quality certifications
SAMACA 66 complies with CE regulations and meets the requirements of the ATG standard in Belgium. It also complies with all applicable construction material standards.
Grades and selections
PRIME
High-quality selection with strict criteria in terms of tolerances, thickness, and flatness. It offers excellent regularity and facilitates installation on site, ensuring a reliable result in full compliance with current standards.
STD
Production compliant with current standards, with more flexible selection criteria than Premium grade. It may present greater variability, so careful sorting on site is recommended to ensure optimal installation.
HEAVY
Slate with greater thickness and weight, providing increased presence and robustness on the roof. Suitable for specific applications or particular construction requirements.
Project gallery
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