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Removing moss on roof.

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Old 23 April 2008, 09:24 AM   #1
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Default Removing moss on roof.

Is there anything I can use (spray etc) to remove green moss from our sloping tiled roofs?

I probably wouldn't get a ladder and remove it by hand, I would get someone in to do it, but if there was an easy way of removing it by spraying it with some kind of weed killer so it dies and drops off then I would give that a go ? Any ideas?
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Old 23 April 2008, 03:21 PM   #2
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I wish there were, the moss on my roofs is getting silly. The pesky blackbirds pull it up hunting for grubs and throw it all over too.

I have an extra problem in that if I killed it all, it would end up blocking my soakaways.


Try here: Kill moss, algae, lichen, mould

It was an ad on your thread
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Old 23 April 2008, 04:42 PM   #3
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Not sure how well (or if) it would work, but I'd be tempted to try Jeyes Fluid.
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Old 23 April 2008, 07:17 PM   #4
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Would normaly say just scrape/brush it off but not everybody is wanting to move hook ladders about etc etc

Pressure washers are very popular although make sure it is done from the top of the roof down, to reduce the amount of water that may go through. Also may cause lots of damage to the tiles!!

Could try spraying any of the normal fungacidal washes etc and then either let nature take its course or jet it off, giving the fungacidal wash time to do its magic first.

Liquid Plastics Bio-wash is very good and would be my first choice: Not cheap though.

Go for the clear or your roof will have a nice blue tinge to it, although the blue with gold guttering maybe the next big thing
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Old 24 April 2008, 12:00 AM   #5
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forget using pressure washers they damage the tiles and push the moss/spores even further under the tiles best thing to use is a mixture of copper sulphate/water sprayed over the moss or if you can stretch a length of copper wire along your ridge tiles that will have the same affect over a perod of time.
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Old 24 April 2008, 01:50 PM   #6
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A long shot but I have been using a product called VIRESCO to kill off Nitrates in my pond. If you kill the Nitrate you starve and kill off algae. I had a chat with the guy that sells it and he has been using the product to kill moss on his patio slabs. He's on the net.

But what's wrong with a bit of moss on the tiles? dl
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Old 05 May 2008, 04:49 PM   #7
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We have used Jeyes fluid which worked well.......but any fungicidal wash will have desired effect.The best way is to run 50mm copper strip on either side of ridgeline...not cheap but solves problem for good.

Some tile designs have an interlocking channel which is blocked by growths such as moss etc...but as long as theres not too much growth it rarely becomes a problem.
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