• Natural slate is a rock extracted from quarries. In the construction industry, flat slate sheets used for roofing a building are called “slates.” Today, there are synthetic or artificial slates that mimic the appearance of natural slate but are made of another material (fiber cement, plastic, etc.).
• Similarly, tiles made from terracotta are called “natural” tiles. The term tile refers to the shape of this roofing material. Thus, there are also tiles made from other materials (fiber cement, concrete, plastic, etc.).

➡ It is therefore essential to ensure the nature of the material that makes up the slate or tile. You must then refer to the usual recommendations: ✅ recommendations for fiber cement, concrete, slates or natural tiles. ❌ do not apply to plastic supports !