Ключевые слова:
Roofing tiles, Ceramics, Heavy clay ceramics, Roof coverings, Roofs, Tiling, Tiles, Construction materials, Marking, Terminology, Specification (approval), Angles (geometry), Physical properties of materials, Mechanical properties of materials, Conformity, Quality control, Fire tests, Fire safety, Fixing, Pitched roofs, Cladding (buildings), Wall linings, Definitions