TYPES OF TILING
Interlocking concrete tiling is perhaps the most cost effective of the roof coverings. These are large tiles which cover around 10 to the metre.
They are laid as a single lap side by side, with the grooves on the underside of the one tile resting within those on the upper side of the proceeding tile.
Plain tiles come in both concrete and clay forms with the hand made clay tiling being the most expensive. The coverage rate is around 60 to the square metre so there is a consequent increase in labour. Additionally, as the tiles are laid double or trebled lapped (i.e. each tile has part of up to two other tiles beneath it) there is a great deal more battening needed and the weight on the roof is significantly increased. Plain tiles are often used for tile hanging.