Is it worth clearing moss off the roof

Moss keeps growing back every year and I’m not sure if it’s doing any harm? Is it something I need to deal with or can I leave it?

Asked by Kamil on 12th Aug 2025
Expert Trade Answers
"You can leave it but over time it will damage your tiles if it keeps coming back every year it hasn't been properly treated.
Should clean the roof then add a spray that prevents the moss from growing back hope this helps"
Answered on 12th Aug 2025 - Member since Jul 2024 - report
"Yes it is worth getting cleaned off but also sealed after is been done to put the protection back into the tile"
Answered on 12th Aug 2025 - Member since Jul 2024 - report
"You can leave it but cosmeticly it looks bad and if you leave it to long it can clog up your drainao"
Answered on 13th Aug 2025 - Member since Jun 2025 - report
"Yeah it's worth getting the moss removed it causes issues in the long run blocks your gutters and the birds love the moss"
Answered on 18th Aug 2025 - Member since Jan 2025 - report
"Moss on a roof is the worst yeah you can clean it but it's comes back the spray is not the best and plus the moss eats away at the tiles so they absorb with water so then the tile is not water tight"
Answered on 13th Aug 2025 - Member since Apr 2024 - report
"This is generally caused from surrounding trees so unfortunately this will not go away it’s a problem a lot of people have when surrounded by trees
However it is completely harmless to the roof unless it builds up that’s when it can cause leaks or gutter blockage"
Answered on 13th Aug 2025 - Member since Jun 2025 - report
"Hi you can clean the roof of without any water clean ridges etc
Then treat the full roof with ally an moss prevention then screw fit a copper band along the top of your ridge system the copper stops the moss growth about 70%"
Answered on 14th Aug 2025 - Member since May 2020 - report
"It is worth cleaning moss and algae from roof for less stress on you're full roof gutters getting blocked not cleaning leads to gutters over flow and leaks lots more."
Answered on 14th Aug 2025 - Member since Dec 2022 - report
"It gets a problem when it starts growing into the roof space where the battens are getting wet but biocide treatment should make it last longer than each year"
Answered on 18th Aug 2025 - Member since Nov 2020 - report
"Hi there
We offer a chemical treatment that fights against the moss a lot of customers tend to go for it we offer a warranty as well

But completely up to you
It’s not posing any damage
But every home is different"
Answered on 12th Aug 2025 - Member since Dec 2024 - report
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