What are the different types of roof tiles?
There is a wide range of roof tiles, in different colours, sizes and shapes. Roof tiles can be classified according to their profiles :
Hollow tile :
Tile with curved drainage part. This type of tile is suitable for roof pitches down to 25°.
Hollow interlocking tile :
Tile with curved drainage part and a head interlocking. This type of tile gives an undulating effect to the roof and is suitable for low and high-pitched roofs. Minimum pitch (with underroof) between 22° and 25°, depending on the type of tile.
Slightly curved interlocking tile :
Tile with flat interlockings and flat drainage part. The tile has a nosing, which gives a slightly undulating effect to the roof. This type of tile is suitable for low and high-pitched roofs. Minimum pitch between 20° and 25° (with underroof), depending on the type of tile.
Flat tile with interlockings :
The drainage part has a central ridge, which creates a major mechanical resistance. The shape of the tile gives a slightly undulating effect to the roof.
This type of tile is suitable for roof pitches down to 25° (with underroof).
Flat interlocking tile :
Flat tile with interlockings and flat drainage part. These tiles make the roof look flat. This type of tile is suitable for roofs with a minimum pitch in between 24° and 35° (with underroof), depending on the type of tile.
Plain tile :
Plain tiles are small flat tiles that are laid in broken bond. Because of the heavy overlapping, only 1/3 of each tile is visible. These tiles make the roof look flat. This type of tile is only suitable for roofs with a minimum pitch of 35° (with underroof).