Does this have a seal on it? I would do the normal ratio if there is no seal on it. I would bring a little wire brush with me and brush under the shingles to knock off the big stuff. Rinse rinse and rinse.
Brandon Vaughn said
Mar 2, 2014
No seal on it. Just very old!
AC Lockyer said
Mar 2, 2014
Brandon Vaughn wrote:
This is a pretty common sight in the NW - Cedar shake roof that is covered in moss, lichens and nasties.
We get a lot of rain, but not very hard rain. So usually moss takes about 6 months to weather off of asphalt shingle roofs once treated.
Just curious how you guys would tackle something like this?
Gota say I am loving the new bulk rinse pump for follow up trips and retreats.
AC
Zach Maynard said
Mar 2, 2014
Any dead growth on a cedar roof will soften up after the treatment and comes off really easy with a garden hose pressure, or even easier if you have a cannon (booster pump). Everything in those pictures will come off easily Brandon.
Brandon Vaughn said
Mar 4, 2014
I shudder at the thought of brushing each shingle with a wire brush! I think I'll bust out the cannon... Thanks for my booster pump's new nickname Zach.
I sold this job and will be doing it next week some time. I'll post some after pics.
Zach Maynard said
Mar 4, 2014
Just for the record I believe "The Cannon" was made up by Lancaster.
Bob Riddick said
Mar 5, 2014
Brandon, I hope you can clean this roof without walking on it. The older cedar shakes get, the more brittle they become.
As you mentioned, it's old. Take your time and be careful.
Doug G said
Mar 6, 2014
Yea......no way I'm stepping a foot on that roof. I would just explain that I can cause more damage than good. I would explain my treatment and the objective of a 100% kill ratio. After they're dead they should start to rinse away naturally.
Robert Baxter said
Oct 1, 2015
I need some advise ...
The bottom photo is the northside of the home. It had a lot of moss and mold.
As you can see I can't get rid of the black mold.
I am using 3%, 50/50 blend of Green Wash and Terra.
AND
A lot of rinsing.
Can anyone give me advise? I'm right in the middle of the project.
Robert , Patric from precision pro can prob help you out
Tim Teed said
Oct 2, 2015
The black that looks almost like paint is tanin. You never really get it all out completely. Also the north sided takes longer to dry so it still looks like crap when wet. As it dries it will lighten in color.
It will even out as it weathers. You are not restoring cedar, but cleaning. We are killing and and washing much of the fungus. It will weather to a grey color. A lot of what is left will wash off as the organics decompose.
AC Lockyer said
Oct 5, 2015
Robert,
Nice speaking to you on the phone the other day about this. Please give us a progress report as you bring this cleaning to its conclusion.
This is a pretty common sight in the NW - Cedar shake roof that is covered in moss, lichens and nasties.
We get a lot of rain, but not very hard rain. So usually moss takes about 6 months to weather off of asphalt shingle roofs once treated.
Just curious how you guys would tackle something like this?
Does this have a seal on it? I would do the normal ratio if there is no seal on it. I would bring a little wire brush with me and brush under the shingles to knock off the big stuff. Rinse rinse and rinse.
No seal on it. Just very old!
Gota say I am loving the new bulk rinse pump for follow up trips and retreats.
AC
I shudder at the thought of brushing each shingle with a wire brush! I think I'll bust out the cannon... Thanks for my booster pump's new nickname Zach.
I sold this job and will be doing it next week some time. I'll post some after pics.
Brandon, I hope you can clean this roof without walking on it. The older cedar shakes get, the more brittle they become.
As you mentioned, it's old. Take your time and be careful.
I need some advise ...
The bottom photo is the northside of the home. It had a lot of moss and mold.
As you can see I can't get rid of the black mold.
I am using 3%, 50/50 blend of Green Wash and Terra.
AND
A lot of rinsing.
Can anyone give me advise? I'm right in the middle of the project.
Thanks,
Bob
It will even out as it weathers. You are not restoring cedar, but cleaning. We are killing and and washing much of the fungus. It will weather to a grey color. A lot of what is left will wash off as the organics decompose.
Nice speaking to you on the phone the other day about this. Please give us a progress report as you bring this cleaning to its conclusion.
AC