Huge amount of concrete tiles have been used in Ireland over the last few years – especially on large housing estates. Concrete tiles are a economical product and can give a relatively trouble free life (when asthetics are not considered – colour can fade dramatically and unevenly).
Brittleness. Concrete tiles will in most cases loose strength and stiffness over the years.
Poor Workmanship. Bad detailing is prevalent in the concrete roofing industry – bad verge details (lack of clips), tile vent/rooflight flashings badly installed.