Clay tile typically lasts 40 to 60 years while slate and concrete tiles have a lifespan of 50 to 100 years.
How to age roof tiles.
While clay roof tiles have been used on roofs for centuries concrete tiles have become more widespread over the last half a century.
How old is that roof.
Obviously the best way to know your roof s age is by keeping records from the last time the roof was replaced.
Estimating roof age is difficult.
As it turns out tile roofs don t just sound tough and long lasting.
If you are adding tiles to a roof that did not previously have them or to a design which did not originally incorporate them the roof may not be capable of carrying the excess weight.
From this it may be possible to obtain secondhand tiles from a roofing or salvage merchant.
This number will not provide the colour reference but should give the design and approximate age of the tile.
Concrete tiles which are usually lighter than clay tiles can easily place over 10 pounds of weight per square foot on a roof.
Most modern tiles have ink jet markings that give batch information to identify the place and date of manufacture.
Their centuries old track record.
Manufacturers of both clay and concrete roof tiles typically guarantee their products for 30 years but often suggest that 60 years is a reasonable expectation of their service life.