Considering where you live, I would imagine having your oil tank filled for the winter is a good feeling. Roof looks good by the way.
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Next time use pressure. Metal roofs and tile roofs need pressure and they can handle it (most of them)
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Im under the impression it is bad to walk on metal roofs due to the way they are fastened to the roof decking. Is tbis true?
Also curious about reactions with biocides! Lol
This is one of the gnarliest roofs I’ve done so far. But honestly pretty typical up here in PNW Canada. The big stuff comes off really easily with a light broom, then hit with a good 4-5% mix.
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Sheesh, I thought I was looking at bushes growing on a hill in that first pic.
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It’s bad to walk on roofs because they are slippery as heck! Haha.
I have heard of problems walking roofs while oxidized because it can leave footprints bit bit what you are talking about though maybe I’m wrong. I stay away from the cap pieces and use good judgement where I’m stepping leaving seams and such alone and that’s worked for me.
The good thing about brooming it all off is that if assume it fills the gutters and then you can upcharge for gutter removal 
That looks like my stuff up in southeast Alaska as well. Have definitely seen my fair share of those roofs. Very excited to get a running start this upcoming summer. I feel like I’ve learned so much!
@Racer with how to do things
@Innocentbystander with what things/jobs not to do
@squidskc marketing guru extraordinaire
@Firefighter4hire for awesome rig setups I wish I could afford
And everyone else for helping out as well. I love this place and hope to be as helpful to others as others have been helpful to me in the future.
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Nicely done
Wow! Im with @qons on that one. I really thought it was a beautiful hillside.
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Is that white end piece something you put up for cleanup or was it built like that?
Woof!
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Also did you treat roof afterwards? If so, what was your process?
3 step process:
1-Inspected the roof to get a game plan for moss removal and safety.
2-Deck broom and blow off roof to get rid of the moss that comes off “easily”. Clean gutters.
3-Treated with 3% SH using 12V. Final rinse after all organics where white or brown, about 1/2 hour dwell.
I made sure to tell the property owner that there would be a significant change in color to the cedar shakes.
Not sure of my process is the best- but it is what I have been using and seems effective with favorable customer feedback.
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I have been very intimidated with cedar shingles. We have some houses like that in town but I’ve steered clear. I would like to start trying to do them though.
I’ve bought some sodium percarbonate to see how it does with this stuff up here. YouTubing hydrogen peroxide deck and shingles has some interesting results and may be something worth looking into.
That roof looks a million times better than it started out!
Sheep,
Yeah I looked into the different chems/processes like you, looking at cost, availability, ease of use etc. I know that using SH on wood can be a polarizing topic.
I got some good advice from the OG’s on here like Racer and IBS, I think what I have learned is having a clear convo with customers to set expectations. I also have a portfolio of pics I show them of what the potential and likely outcome will be.
We have similar climates, N Oregon coast and Alaska, and I would say 1/3 of roofs in my area are cedar shake. For most customers they prefer function over form- “get it cleaned and kill the organics, I can live with whatever look is left after the process” which is usually a very “blonde” or lightened cedar look. 
Racer also gave me a link to a neutralizer/preservative for cedar shake, I apply it with a electric backpack pump sprayer, works good!
Well help a man out and send me that link!
Please and thank you of course 
Yeah I’m not sure which direction I would want to go with that and figuring out what works best for me. I’m not a huge fan of wood bleaching blonde personally so would like to try alternatives. Hilariously enough it would be way easier to use HP. At least I could get it up here!
Exploring all options to make life easier for me as well as the customer. Can’t quite get started on practicing with the stuff quite yet though…
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Great results. Are you putting any brightener on at the end so that they keep the fresh look a little longe or are most happy with the weathered look when they turn back silver?
@Racer, If the customer wants to preserve the natural look, I use a product you turned me onto a couple years ago- Defy wood brightener.
I have found though that up here with cedar shingle regardless of what you clean with or what after treatment you apply- in a year or two it all ends up looking the same.
@Dallsheep does that answer your question as well 
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That’s what I figured. Even down here in a year or so will revert back to weathered look unless under a covered area.
Nice work though, those are a lot worse than what we see down here as far as amount of moss.
