Modular clay roofing element. Whether the classic coppo and embrice system or the Portuguese tile, it is the primary defence of the building against weather, ensuring rainwater disposal and the breathability of the roof assembly.
Cross-section of a ventilated roof system. Solar-heated air rises between tiles and membrane (chimney effect), keeping clay dry and removing up to 40% of summer heat.
From Mediterranean vernacular architecture to high-tech contemporary roofs, the clay roof tile combines the aesthetics of terracotta with aerodynamic functionality designed to deflect water and resist wind.
Tiles are produced by extrusion (classic coppi) or by moulding in steel presses (Portuguese or Marseille tiles). The mechanical interlocking geometry prevents wind-driven rain from rising by capillarity and penetrating the attic.
Regulations require dry laying on double battens. The resulting air gap heats and rises through the ventilated ridge (chimney effect), keeping the clay dry and removing up to 40% of summer heat from the attic.
European and international references applicable.
The minimum slope required varies by tile geometry: 15% for interlocking Portuguese tiles, up to 35% for classic coppo and embrice. Always verify local building codes and wind uplift requirements before specifying.
The typical Roman roofing. The flat tile (embrice) drains the water, the curved coppo covers the joints.
PRC.04 · Open the processThe monoblock evolution: merges the flat part and the curve into a single interlocking tile, speeding up installation.
PRC.04 · Open the processMinimalist profile without waves, ideal for contemporary architecture. Requires higher minimum slopes.
PRC.04 · Open the processFlat tiles integrating solar cells, hiding the photovoltaic system in restricted historical centres.
PRC.23 · Open the processThe longevity of clay is proverbial. Degradation is almost always linked to movements of the underlying frame or to frost damage if the roof is not properly ventilated.
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