For people who do not plan to ever sell their home the incredible longevity of slate is a highly desirable benefit.
Slate roof lifetime.
These life expectancies are general experience with the material and do not consider installation or environmental factors which vary from one building to the next.
While man made slates are typically cheaper and easier to install they only tend to last for around 20 years.
Slate tile manufacturers offer warranties ranging anywhere from 50 years to a lifetime and should a slate tile ever break it can easily be replaced.
Many slate tile manufacturers offer up to 100 year warranty on their products.
The biggest downside to slate tile roofs.
For fibre cement roof slates the life expectancy is a little shorter at around 50 60 years.
This can vary depending on the manufacturer.
A slate roof will easily last over 100 years which is at least double of what other roofing materials can offer.