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Old 07-14-2018, 11:34 AM   #1
Garcia
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Default Moss on roof

Anyone have experience getting rid of moss on a shingled roof? Iíve heard about products like Wet & Forget or a mixture of bleach and water but am wondering how they work before I go through the trouble of applying. I get the pine needles off with a stiff broom but the moss is pretty stubborn.

Any ideas appreciated - the roof has a few more years of life before it gets replaced with a metal one which will lessen the moss and pine needle problem.
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Old 07-14-2018, 11:56 AM   #2
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Wet and Forget works as good as everybody says.

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Old 07-14-2018, 12:18 PM   #3
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Wet and Forget works as good as everybody says.
Yes, Wet and Forget will get rid of the moss but it will take a few months.
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Old 07-14-2018, 12:33 PM   #4
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Oxyclean works quicker that W&F. Mix as directed on box. Use garden type sprayer and apply when it is sunny for a day or two. Because it is an oxygen bleach not a chlorine bleach it wonít harm roof, shrubs, etc. and runoff wonít damage lake.


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Old 07-15-2018, 02:15 PM   #5
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Wet & Forget.

Our camp on Welch is shaded so 7 years ago there was some moss and lichen starting. One Wet & Forget application and all was gone after several weeks. It has taken 7 years for just a few small patches of lichen to reappear. So I recently gave the roof another application and in a while it will be clear again.
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Old 07-15-2018, 08:48 PM   #6
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Default Wet and Forget fan here too

Iíve used Wet and Forget on my roof and it cleared up in a matter of weeks.
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Old 07-15-2018, 11:07 PM   #7
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Just curious on the Wet and Forget vs Oxyclean question--Wet and Forget obviously has a big following, but I saw from The Real Big Guy that Oxyclean was quicker on roof and better for the nearby plants and lake. Have any other Wet and Forget users tried Oxyclean?
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Old 07-16-2018, 06:33 AM   #8
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Quote:
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Just curious on the Wet and Forget vs Oxyclean question--Wet and Forget obviously has a big following, but I saw from The Real Big Guy that Oxyclean was quicker on roof and better for the nearby plants and lake. Have any other Wet and Forget users tried Oxyclean?
I posted about a year ago asking for suggestions and both options came up. I went with W&F because I happened to be at Walmart just after reading they sold it there. Since it's in the shade and I couldn't see it, my shed roof had gone way too far, so I thought I'd have to use a few applications, but one treatment wiped everything out and with some rain, my roof is now completely clear for the second year. I still have 3/4 of a bottle, which I just took home to treat a small eave on my home. (I understand the second-to-last sentence is an abomination)

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Old 07-31-2018, 11:16 AM   #9
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Quote:
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Oxyclean works quicker that W&F. Mix as directed on box. Use garden type sprayer and apply when it is sunny for a day or two. Because it is an oxygen bleach not a chlorine bleach it won’t harm roof, shrubs, etc. and runoff won’t damage lake.
Am I correct in understanding that you just used Oxiclean mixed with water? No bleach or anything else. Do you need to sweep it clean or can you do nothing, or just rinse with a hose?
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Old 07-31-2018, 01:44 PM   #10
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Oxyclean is bleach, only oxygen bleach instead of chlorine bleach. Yes, just mix it with water per the directions on the container. The key is to spray it on during growing time (warm moist weather with lots of sun). Once it is dead you may be able to just hose it off. I used a combination of hose & a little vrooming.


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Old 07-31-2018, 01:48 PM   #11
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Maybe a chemist out there can discuss this but, I would not mix Oxyclean with chlorine bleach because I donít know if there would be a chemical reaction that would liberate chlorine gas.


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Old 08-08-2018, 09:57 AM   #12
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Per Oxyclean website:
OxiCleanô Versatile Stain Remover should not be mixed with chlorine bleach or any other household chemicals.
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Old 10-18-2018, 12:03 PM   #13
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Default Wet & Forget

I hit the roof with W&F about 3 weeks ago. The moss has turned brown. Is this the normal process. Do I need to hit it again or scrub with broom or neither.

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Old 10-18-2018, 12:21 PM   #14
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You don't need to do anything further except let the Wet and Forget do it's thing. This is not immediate and also is determined by the amount of moss present Next spring you should see a difference. I apply bleach (the blue container) diluted somewhat. Later I apply the Wet and Forget. I have not had to reapply for 2 years so far.
Good luck.

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Old 10-18-2018, 06:10 PM   #15
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I put strips of zinc strips along the ridge and it has worked great, No more moss.
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Old 10-18-2018, 08:20 PM   #16
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I have thought about this solution for some time. How are the zinc strips attached and how visible are they. Would the strips be unsightly from the street.

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Old 10-18-2018, 10:07 PM   #17
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Sometimes I wonder what some people look at when they drive up to their home, the moss doesn't all of sudden appear on their roof. Don't they see how many trees are keeping their home from the sun and this allows the dampness to feed the moss?
It would be better to work on some preventative stratagy than to wonder how they can remove the moss after it damages the roof.
Just my observation of this thread and not meant to insult anyone.
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Old 10-19-2018, 07:55 AM   #18
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I agree with you, Rusty, But on the lake, you can only cut so many trees. Lots of trees also make for lots more mosquitos and bugs. I believe that in the future a lot of homes are going to end up with mold problems from the dampness.
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Old 10-19-2018, 08:20 AM   #19
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Quote:
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I have thought about this solution for some time. How are the zinc strips attached and how visible are they. Would the strips be unsightly from the street.

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They might be "unsightly" to some people (but I doubt it), however moss is unsightly to everyone.
Zinc strips along the ridge vent when new shingles are put on are highly reccomended on roofs that get little sun.
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Old 10-19-2018, 10:06 PM   #20
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Thanks Rusty. Most likely my wife will say it is unsightly. But, worth a try.

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Old Yesterday, 05:49 AM   #21
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Quote:
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They might be "unsightly" to some people (but I doubt it), however moss is unsightly to everyone.
Zinc strips along the ridge vent when new shingles are put on are highly reccomended on roofs that get little sun.
How come we are agreeing so much lately, Rusty?
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