MyJobQuote Logomyjobquote
  • Post a Job
  • Trade Signup
  • Ask a Trade
  • Cost Guides
  • About
  • Login
  • Over 1 million homeowners and over 30,000 tradespeople
    use MyJobQuote nationwide each year

    Post a Job or Sign up as a trade
    Post a Job or Sign up as a trade

    Ask a Tradesman

    Black and green stains on my roof?

    Roofers

    What is the cause of black and green stains on my roof?

    Asked by Lou on 19th Jan 2022
    Share this question

    Best Answer

    H C roofing & guttering

    "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 - report
    Roof Masters

    "Weathering, bird droppings, moss vegetation, and emission all contribute to the discolouration of roofs."

    Answered on 12th Feb 2022 - Member since May 2019 - report
    Skyline Roofing

    "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 - report
    North Oxfordshire Roofing & Home Improvements

    "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 - report
    Pink Rhino Construction

    "Hello Lou,

    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 - report
    Jm roofing and stone specialist

    "It's sounds like moss or algae depending age and surroundings"

    Answered on 8th May 2022 - Member since Dec 2021 - report
    Js property maintenance

    "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 - report

    Ask a Trade

    Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.

    Ask your Question

    Related questions

    Ready to get a price for your home improvement project?

    get started
    x

    Report Content