narrower concept asphaltic concrete pavement Concept asphaltic surface Concept base Concept clay soil Concept dry screed Concept floor slab Concept floor tile Concept flooring Concept grating Concept heat-insulating layer Concept heat-insulating material Concept heat-insulating plaster Concept insulating layer Concept linoleum Concept parquet Concept plastic cover Concept plinth skirting Concept ready-to-lay flooring Concept screed Concept separating layer Concept textile coating Concept tile pavement Concept timber flooring Concept under-floor heating Concept wooden pavement blocks Concept