My new clay pantile roof looks wonderful but I am concerned about the gaps between the tiles. Will my roof leak?

Clay pantiles have been around for about 400 years now and have long proved themselves to be an extremely efficient form of roof covering. In early methods of clay production there was very little control during firing over the final shape of a product. This meant that the design of a roof tile was such that it had to be weathertight whatever its final shape – the shape of a traditional pantile is a wonderful testimony to early roof tile designers. Not only do they keep the water out but the gaps around the tiles minimise the suction effect of the wind, helping to prevent wind damage.

Because modern clay tiles are pressed, rather than extruded in the way that concrete tiles are, far more weatherproofing features, such as top interlocks and weather barriers, can be designed into the surface of the tiles. This allows them to be laid at lower roof pitches than was normally used for traditional pantiles.