The materials and techniques for making a roof are very varied :
- Terracotta or concrete tiles of all kinds of pattern,
- Roofing tanks of profiled sheet metal,
- Solar tiles (photovoltaic)..
Not to mention rarer processes such as wood shingles, slates, copper sheets …
The slope depends first on the style of construction and the rules of town planning. It determines in part the type of cover and its application, in particular for the covering of tiles.
In windy areas, tiles and lightweight materials will be nailed, glued or fastened with hooks.