The answer is dependant on the type. of roof you are dealing with and the existing age it is before it’s restored.
In general roof life spans will be as follows:
- Terracotta – up to 75 years. This type of roof will outlive most other roofing types, however will still need restored every 10-20 years on average
- Cement roof tiles – 50 years life span
- Colorbond roofs – 25-50 years
A professional roof restoration can extend the lifespan of most roof types. As with most things in life, regular maintenance is required to improve the longevity of it.
With extreme weather and exposure to the elements, over time you may come across issues like broken tiles, damaged ridge capping, rusted valleys, chipped paint, damaged gutters, excessive moss and lichen.