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"It’s likely to be a build-up of moss that grows between the tiles. you can have it cleaned off with a stiff brush and sprayed with a fungicide agent that will kill off The remains and prevent them from growing back for a few years"
Answered on 19th Jan 2022 - Member since Sep 2020 -
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"Weathering, bird droppings, moss vegetation, and emission all contribute to the discolouration of roofs."
Answered on 12th Feb 2022 - Member since May 2019 -
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"there are two things black and green which are.. –moss and algae"
Answered on 9th Dec 2023 - Member since Nov 2023 -
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"The stains on your roof are caused by two things –moss and algae. The most common type of stain-producing plant organism, gloeocapsa magma, is algae and causes the black stains. Moss is also a plant that grows in damp areas, leaves green stains."
Answered on 30th Nov 2022 - Member since Nov 2022 -
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"The green would be algae. But the other stain could have run off from the lead work."
Answered on 18th Feb 2022 - Member since Jan 2022 -
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"North Oxfordshire roofing & home improvements:
Hi, we’ve seen this problem pretty often, It’s likely to be a build-up of moss that grows between the tiles and also be from the lead itself,
you can have it cleaned off and sprayed with a fungicide and some special cleaning product that will kill off The remains and prevent them from growing back for a few years.
I hope this was helpful and if you would like to check us out please feel free to do so.
Leon
North Oxfordshire Roofing & Home Improvements"
Hi, we’ve seen this problem pretty often, It’s likely to be a build-up of moss that grows between the tiles and also be from the lead itself,
you can have it cleaned off and sprayed with a fungicide and some special cleaning product that will kill off The remains and prevent them from growing back for a few years.
I hope this was helpful and if you would like to check us out please feel free to do so.
Leon
North Oxfordshire Roofing & Home Improvements"
Answered on 31st Mar 2022 - Member since Mar 2022 -
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"Hello Lou,
The black and green stains on your roof are caused by damp/wet conditions that algae and moss thrive in"
The black and green stains on your roof are caused by damp/wet conditions that algae and moss thrive in"
Answered on 19th Jan 2022 - Member since Dec 2021 -
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"This is usually moss coursed from settled water or run off and is difficult to remove"
Answered on 27th Jul 2022 - Member since Jun 2022 -
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"It's sounds like moss or algae depending age and surroundings"
Answered on 8th May 2022 - Member since Dec 2021 -
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"Is it the interior roof or is it the exterior roof interior is mould which is caused by dampness from the exterior if its the exterior could just be moss stains which u get stuff to remove it"
Answered on 19th Jan 2022 - Member since Oct 2021 -
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