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Cleaning growth from tiled roof


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Thanks for that hobbinho.


The only thing that concerned me, I heard someone saying you can destroy concrete tiles when you pressure wash them???


Your unlikely to destroy them but you can end up with a rougher surface, which makes it easier for the moss etc to grip. A coat of paint or clear sealer will reduce the re growth rate and re-seal the surface.


Remember to disconnect your down pipes to stop the moss etc blocking the rubble drains/drains.

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  • 2 months later...

did this on my cousins roof, took an AGE with a good pressure washer! as suggested it did work but left a rougher surface that would need sealed with something. i'd advise the bleach/Chlorous route personally then pressure wash off what's still there

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