Samaca 55
Juanita quarry (Los Molinos)
Samaca 55 comes from the Juanita quarry, located in the area of Los Molinos in Carballeda de Valdeorras, province of Ourense (north-west Spain). The quarry has been in operation since the 1960s and is one of the most important in the region and in Europe, both in terms of production and the scale of its reserves. The quarry face extends over 100 metres in length and stretches for several kilometres along the mountainside, ensuring long-term reserves.
This is a grey slate distinguished by its high resistance to transverse and longitudinal bending, ensuring exceptional homogeneity and performance.
Formats and Dimensions
SQUARE
RECTANGULAR
BULLNOSE
HALF-MOON
SCHUPPEN
50X25
40X20
40X22
40X25
35×20
*Other formats and sizes available on request.
Technical Characteristics
SAMACA 55 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
0.3%
Non-carbonate carbon content
0.3%
Flexural strength Modulus of rupture
Longitudinal: 38 Mpa
Transversal: 36 Mpa
Reaction to fire
Class A1
Emission of hazardous substances
None under standard roofing or cladding conditions
Quality Certifications
Samaca 55 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.
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