Pantile

Pantile is a type of roofing tile characterized by a curved, interlocking profile that forms a shallow S-shaped cross-section when viewed from the edge. In use, pantiles are laid in rows on roof battens with each tile overlapping its neighbor. The interlocking joint helps shed water and resist wind uplift while producing a distinctive, undulating roof surface.

Pantiles are typically made from clay and fired to form durable, weather-resistant units; concrete versions are common in modern applications. They are most closely associated with European vernacular architecture and were widely used in Britain and Ireland from the late medieval period through the 19th century, with various regional styles such as plain pantiles and more pronounced profiles. Some pantiles are referred to as Roman pantiles in historical sources, reflecting their origin in classical tile forms.

Installation requires a pitched roof, usually with timber battens and a suitable underlayment. Pantiles must be properly spaced to maintain alignment and weatherproofing; damaged or cracked tiles are replaced to preserve performance. Modern practice may use concealed fixings or nails depending on the product and climate.

Maintenance involves periodic inspection for broken tiles, moss or lichen buildup, and ensuring any surface coating remains intact on treated varieties. Pantile roofs can offer good longevity when properly maintained, though the profile can be more susceptible to wind loading in exposed locations.

In summary, pantile is a traditional rounded roof tile with interlocking joints that creates a wavy roof appearance, widely used in Europe and still encountered in historic and restoration work as well as some modern constructions.