This material is part of the free Environmental Performance in Construction (EPiC) Database. The EPiC Database contains embodied environmental flow coefficients for 250+ construction materials using a comprehensive hybrid life cycle inventory approach.<br><br>Concrete roof tiles are a roof cladding material manufactured from concrete. A concrete mix, containing sand, cement and water is extruded into moulds and kiln dried for a number of hours. Concrete roof tiles come in a range of colours and profiles with a typical weight of around 5 kg per tile and an average thickness of around 20 mm. A range of capping tiles are also available for ridges and other roofing junctions.<br><br>They are installed using clips attached to timber or steel roof battens and overlap to ensure no water ingress into a building. Concrete roof tiles are typically used in domestic construction where the roof pitch is at least 15 degrees.<br><br>