Asbestos roofs are still very common in the UK as it’s estimated by the UK’s Land Registry, that more than 75% of those ever installed are still in service today.
That says a lot about the strength and quality of the material, but the original predicted life span was only 40-50 years.
Given that the majority of asbestos roofs were installed in the 1960’s and 1970’s, many reaching the end of their planned economic and useful life and will need replacing.
However, the lifespan does depend on a number of factors, including geographical location, maintenance, etc., as we’ve seen plenty that were installed in the 1930’s and are still pretty much as good now as they were when they were installed.
The truth of the matter though, especially on larger industrial properties, is that roofs are not particularly well maintained and probably only receive any attention when they begin leaking.
At which point, most companies perform patch repairs of varying quality, but these can only ever be considered temporary.
When repeated attention to an asbestos roof is required, it’s time to consider a more permanent solution.