Samaca 49
María del Carmen quarry (Ultimoreo)
SAMACA 49 comes from the María del Carmen quarry, located in the locality of Ultimoreo (La Baña), within the municipality of Encinedo, province of León (Spain). It is an open-pit operation belonging to the Rozadais formation of the Upper Ordovician (approximately 455–435 million years ago). The quarry has been in operation since the 1980s.
This is a grey slate with a medium grain and a rustic texture. It features a medium degree of fissility, ensuring good homogeneity and reliable performance in roofing.
Formats and Dimensions
SQUARE
RECTANGULAR
ROUND
50X25
40X20
40X22
40X25
35×20
*Other formats and sizes available on request.
Technical Characteristics
SAMACA 49 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
0.8%
Non-carbonate carbon content
0.5%
Flexural strength Modulus of rupture
Longitudinal: 55 Mpa
Transversal: 34 Mpa
Reaction to fire
Class A1
Emission of hazardous substances
None under standard roofing or cladding conditions
Quality Certifications
SAMACA 49 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
PREMIUM
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.
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
We're here for you!
If you have any questions about our products or natural slate in general, our team of experts is ready to assist you with whatever you need.