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How to remove Lichen fro roof.

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  • 08-04-2021 9:36am
    #1
    kerdiff
    Registered Users Posts: 156 ✭✭


    Hi, my roof tiles are destroyed with Lichen, just wondering what product can I get to remove it from my roof. TIA.


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    #2
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,486 CMod ✭✭✭✭magicbastarder


    i don't think lichen will actually be damaging the tiles though?


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    #3
    [Deleted User]
    Posts: 0 ✭ [Deleted User]


    Aye. Does no harm, adds a bit of patina and character.


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    #4
    kerdiff
    Registered Users Posts: 156 ✭✭kerdiff


    [Deleted User] wrote: »
    Aye. Does no harm, adds a bit of patina and character.

    Just doesn't look great on the roof.


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    #5
    kerdiff
    Registered Users Posts: 156 ✭✭kerdiff


    [Deleted User] wrote: »
    Aye. Does no harm, adds a bit of patina and character.

    It just doesn't look great.


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    #6
    Oscar Madison
    Registered Users Posts: 700 ✭✭✭Oscar Madison


    kerdiff wrote: »
    It just doesn't look great.


    To be honest, who but yourself is looking at it?

    Nothing wrong with it in my view and you're only looking for trouble.

    Surely there are greater tasks to attend to other than this!


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    #7
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,486 CMod ✭✭✭✭magicbastarder


    Looks absolutely fine to me. You'd be creating a rod for your own back by trying to clean it, plus I suspect any treatment would be the sort of thing with 'do not pour into watercourses' or 'hazardous to aquatic life' which given it will run off into the storm drain, would be an issue...


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    #8
    mooz
    Registered Users Posts: 80 ✭✭mooz


    kerdiff wrote: »
    Hi, my roof tiles are destroyed with Lichen, just wondering what product can I get to remove it from my roof. TIA.

    Did it today. Used Algae buster, picked it up in my local hardware store last year and had 5l left over. Sprayed the walls and roof with a knapsack. Give it 2 weeks to see an improvement. Cleans the moss, algae, red stains that you see on chimneys/walls etc. Highly recommend it


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    #9
    magicbastarder
    Moderators, Category Moderators, Arts Moderators, Sports Moderators Posts: 49,486 CMod ✭✭✭✭magicbastarder


    mooz wrote: »
    had 5l left over.
    to a man with a hammer.


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    #10
    randy hickey
    Registered Users Posts: 1,935 ✭✭✭randy hickey


    The guys who remove algae, lichen etc from concrete roof tiles/slates for a living, spray on DDAC (Didecyldimethylammonium chloride), diluted down with water.
    You can buy it from Benz Softwash down in Cork, but some of the moss clear products have it as their active ingredient.

    You would spray it on an leave it to do it's job over the following weeks - the lichen etc. die off and basically weather away.

    Some guys might use SH (Sodium Hypochlorite), and this will have a more immediate effect, but the DDAC is more environmentally friendly, and longer lasting,(clear for at least two years afair).

    Farmers used to use SH to clean down milking parlours, and you can still get 25L drums of it in the big agri supplies shops for around 30quid.


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