This goes for the corrugated sheets as well. Normal terracotta roofs don't have this much moss/lichens.
this post was submitted on 06 Jun 2026
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Yea asbestos is no joke, however not every material containing asbestos is an immediate and incredibly dangerous health hazard (provided it’s just sitting there).
Some materials (like the asbestos equivalent of rockwool) continuously release asbestos particles in the air. That is indeed incredibly bad and dangerous and need to be removed asap. Other materials won’t release anything unless you are cutting them or drilling holes in them (and thus releasing particles) or if they are in an advanced state of decay (and thus releasing particles). These normally don’t constitute a health hazard but my understanding is that under certain conditions or given enough time that can change.
This might be the case here. If it was my home I’d definitely get a professional opinion sooner rather than later. Especially since asbestos could also have been used elsewhere in the house, in materials or places that pose a bigger threat to the occupants than the roof cover.
Or some shingles eventually break...
If one shingle breaks yeah you wouldn't want to huff it, but realistically dilution would mean the tiny amount released is next to harmless. Asbestos is an extreme occupational hazard for people unlucky enough to have worked with it, but for most extant asbestos material the best practice is to leave in place.
Ill 1 up ya, asbestos is in almost everything you come in contact with on a daily baises. Home built between 1800's and 1980? Asbestos in everything. Car parts = asbestos. Basically anything being made not to burn, has used or still uses asbestos. Its drastically less dangerous than what most people like to believe. Left alone, its fuckin harmless and will be hamless for as long as its left be. So dont freak out thinking you need to replace all your insulation in your old farm house cuz you prolly creating a problem that never wouldve became a problem.
The only real live person I ever knew to get mesothelioma was my grandfather who worked as a plasterer his whole life. They used to spray the shit with their stucko, mask-less, with cigs hanging out their mouth. He got it in his 80's and lived a very long very full life. Its one if the silliest things people choose to worry about.