What is it and how do we get rid of it. - Certified SoftWash Roof Cleaning

Gregg Giordano · Sophmore Member

What is it and how do we get rid of it.

Josh Scavetta · SoftWash Systems Certified Applicator

Did it turn from green to yellow like that? If it did then it might be dead and you just need to give it time.

Gregg Giordano · Sophmore Member

No color stayed the same.

Bob Riddick · SoftWash Systems 5-Star Professional

Gregg, it might not be of the mold or fungus family. In other words, not organic. That would be the reason your solution didn't alter its state.

I know I have seen this on roofs earlier in my career, and my memory says it is acidic. Wish I could be of more help.

Gregg Giordano · Sophmore Member

Um, that's something to consider! It definitely is a growth of some sort usually found under tree limbs or at the edge of the roof line.

Danny Cronauer · SoftWash Systems Certified

Its organic, its like a mustard fungus or something, it does die. it just doesn't change color. Treat it like moss or lichen hit it with a 4%

Gregg Giordano · Sophmore Member

Hi Danny,

Good to hear from you hopefully I'll see you in Florida not sure I'm going as of now. Thanks for the info at least we can name it now and I can advise our customers what to expect with this type of growth. I haven't had the chance to return to any of the jobs that had this growth but will make sure I visit the one above to check things out. How long do you think it will need to naturally rinse from the roof?

Danny Cronauer · SoftWash Systems Certified

Gregg Giordano wrote:
Hi Danny,

Good to hear from you hopefully I'll see you in Florida not sure I'm going as of now. Thanks for the info at least we can name it now and I can advise our customers what to expect with this type of growth. I haven't had the chance to return to any of the jobs that had this growth but will make sure I visit the one above to check things out. How long do you think it will need to naturally rinse from the roof?

Gregg,

I tell everyone moss and lichen can take 3-6 months. I would put this in that category.

Tim Teed · SoftWash Systems 5-Star Professional

We see a lot of that orange fungus. It is usually on concrete but occasionally we see it on roof. It is colorfast. It is dead and will come off the same way any lichen will.

AC Lockyer · Administrator

Greg,

It is colorfast. Some dyes are made from fungus. Like dyes some bleach and some don't. The mix does kill it at a 3% or better.

AC

Gregg Giordano · Sophmore Member

Hi There.

-- Edited by Gregg Giordano on Wednesday 12th of October 2016 12:47:35 AM

John Aloisio · SoftWash Systems 5-Star Professional

Gregg,

colorfast just means that the color is thru and thru and will Not bleach. A lot of fabric awnings are colorfast and can be cleaned with a Softwash solution.

that is yellow mold, and we see it a ton around here.it will die and come off just takes a while. we see it on a lot of brick and concrete walls and walks.

I actually think that those white spots are the molds fruit or seeds. I know that this mole in a structure is extremely bad an should not be breathed in at all. It is a highly destructive mold that causes rapid decay.

Gregg Giordano · Sophmore Member

Hi John,

Thanks for the info, does this type of mold have an official name?

Thanks

John Aloisio · SoftWash Systems 5-Star Professional

Just called yellow mold I think, just google it

Brandon Vaughn · SoftWash Systems Pro Staff

We get yellow lichens on our roofs out here that look identical to this stuff and everyone is spot on. They too are colorfast. In fact, many different type of colorfast dyes are made from different types of algae and organic materials.

They are dead, they just don't bleach through.