The short answer
There is no single answer, because roofs from the 1960s onwards sit at different points in their life. Sources give concrete tile a typical life of roughly 30 to 60 years, and flat roofs 15 to 30. Condition, upkeep and workmanship matter more than the build date, so the survey judges your roof, not its age.
People often ask us the age of a roof as though it were a use-by date. For a Liden home built any time from the 1960s onwards, the date tells you what to look at, not what has failed. A well-kept roof of fifty-odd years can have more life ahead than a neglected one of thirty.
Q1.1What do the published lifespans really mean?
Published lifespans are typical ranges and never promises. Marley, a tile maker, expects its concrete tiles to serve for about 60 years yet says plainly that this is not a guarantee. MyBuilder suggests concrete tiles typically need replacing after 30 to 50 years. The gap between those two figures is the difference between a roof that has been looked after and one that has not, and it is why we give a written assessment and not a verdict from the pavement.
Q1.2Where does the wear show first?
On a concrete tile roof the covering usually outlasts what holds it. Underlay behind the tiles perishes, battens soften where the nails have worked, and ridge mortar lets go. Edges and abutments wear sooner than the open slope. When these parts are repaired the tiles can keep working, which is often the better value than a strip and re-cover.
Q1.3When does replacement make sense?
A re-roof earns its cost when the failure is widespread: tiles breaking in many places, underlay torn across a whole slope, or battens rotted through. Our roof replacement page explains how we decide, and what is included in the quote. Even then the advice we give is the smallest job that sorts the fault, not the biggest one on offer.
Photographs of your own roof, taken at the survey, arrive alongside the written quote, letting you look at the faults we describe and judge for yourself. Anyone who has owned a house for a while will know the feeling of being told a roof is finished by someone who has only looked at it from the road. A survey from the roof itself, and a loft inspection from beneath, is how that guesswork is avoided.