All enquiries are answered in consultation with the local factory and offers made direct from the manufacturer. Rules for construction materials exist in each country. Our stones are thoroughly tested to prove they can meet the requirements of rules in force, according to French and European standards. The required levels for each project will depend on its location and the stones’ use. First of all aspect is important as this is why a stone is chosen (color, uniformity or variation, grain, veins …). As stone is a natural product, we strongly recommend you ask to see samples. It is then necessary to decide upon eventual finishes (finishes do not apply to all stones); and consider if the sizes and quantities match the capacity of the quarry and the stone. And finally, physical criteria should be considered including :
Flooring:
• The wear resistance depending on the crossing of pedestrians or vehicles
• The flexural strength to predict thickness especially if there is circulation of vehicles
• The resistance to frost susceptibility for external paving
• The slip resistance requirements
• The porosity for outdoor use exposed to dirt
• The ease of maintenance
Wall Cladding:
• The porosity of the bonded stone
• The anchor resistance in case of dry fixing, to dimension to the wind and earthquake resistance
Massive stones :
• Compression to assess the strength of the structure
• The capillarity for water penetration.
