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Apex Roof Cleaning · Guest

how to go about this job?

Guest

Treat it with a mild roof solution with a light power wash rinse. Do they want the concrete done as well?

waxman18324 · Premium Member Roof Cleaning Institute Of America

dan,

Like you I would be interested in the answers you'll get. This could give you plenty of exposure, as long as you have signage on your vehicle/trailer and the amount of foot/vehicle traffic in that area.

Hank

Apex Roof Cleaning · Guest

Diamond Roof Cleaning New Jersey (1-800-Roof-Clean) wrote:
Treat it with a mild roof solution with a light power wash rinse. Do they want the concrete done as well?

So hit it with a soft-wash, rinse it with a power washer? what is a light power washer lol? I asked about the concrete they said give them 2 estimates one with and one without.

Mild solution 10%?

Roof Cleaning Cleveland (216) 323-0552 · Feb 24, 2012

I would use a pressure washer. You may want to work early or late to avoid foot traffic. Call if you want to much to type.

Chesapeake · Guest

Just as Mike said, soap with Chem pump using around 2% solution and rinse with pressure washer.

Guest

No apply the chemical with your pump straight on. Let dwell and then rinse with a 6010 nozzle and a 0010 nozzle using your power washer. You will need a power washer if you are doing the concrete.
Use 5 gallons of chlorine to a 50 gallon mix. If that dosent work them step up to 10 gallons per 50 mix. I would use simple cherry instead of just regular soap.

Apex Roof Cleaning · Guest

Great, thanks for all the info I haven't ordered my surfactant yet, I do have some left over dawn. Why do you recommend the simple cherry? So how about pricing?

gutterdog · Feb 24, 2012

Pricing. I dont know much about comercial, I know it is cheaper than residential. You are going to need to rinse off the soap, that is what the power washer is for.

Concrete, if you dont have a surface cleaner, forget it. Only my oppinion.

aaron61 · Guest

Price would be: How many (man hours) do you think it will take you x how much you need to make per hour + materials = Price :)

Or you can give it to someone else,since you probably don't have the experience, no offence.... Tell them you would like $50 for getting them the lead and you want to watch them do it.

MJ · Feb 24, 2012

I did some aluminum siding cleaning on the south side of a house that had tiny black spots that would not come out with anything, they were like ingrained or embedded in the pours of the metal texture. I set expectations kind of low with aluminum, I suspect the spots were emissions because it was on a busy road. My only experience is that you start out with the lowest chemical % and pressure as a starting point. You can dent it and swirl mark it pretty easy. Nozzle selection is important. I put on a magnet to make sure it does not stick, don't really like aluminum, almost won't touch oxidize siding, I have not learned a way of reversing 20 years of neglect in a few hours.

Chesapeake · Guest

MJ wrote:
I did some aluminum siding cleaning on the south side of a house that had tiny black spots that would not come out with anything, they were like ingrained or embedded in the pours of the metal texture. I set expectations kind of low with aluminum, I suspect the spots were emissions because it was on a busy road. My only experience is that you start out with the lowest chemical % and pressure as a starting point. You can dent it and swirl mark it pretty easy. Nozzle selection is important. I put on a magnet to make sure it does not stick, don't really like aluminum, almost won't touch oxidize siding, I have not learned a way of reversing 20 years of neglect in a few hours.

The tiny black spots are called artillary fungas. The fungas is normally found in mulch or in wooded areas where wood is decaying. It attatches itself to surfaces and is nearly impossible to remove.

Apex Roof Cleaning · Guest

There is definitely no artillary fungus, that sounds dangerous. It honestly isn't even that dirty, it basically looks like there is spider webs by the light fixures, all of the bugs got trapped there and died. Its not stained like most of the exterior stuff we deal with, its more of just debris.
Any price per/sqft?

waxman18324 · Premium Member Roof Cleaning Institute Of America

Apex Roof Cleaning wrote:
There is definitely no artillary fungus, that sounds dangerous. It honestly isn't even that dirty, it basically looks like there is spider webs by the light fixures, all of the bugs got trapped there and died. Its not stained like most of the exterior stuff we deal with, its more of just debris.
Any price per/sqft?

Dan,

Check your pm as I sent you some info.

Hank

donniedawg · Guest

+1 to what Doug said about the downstreaming.... and if you have HOT WATER.... cake.

I never used the AFR... maybe I will look it up. The Artillery Fungus is BIG here in Central PA.

-- Edited by donniedawg on Saturday 25th of February 2012 12:34:02 PM

Doug R · Guest

If I were you I would downstream my mix. Would be much faster and clean just as well, and you wont have two hoses. Tractor supply stores are all white exterior, and they are real easy to clean up. You will need the pw'er to remove the dirt dobbers and cob webs anyway, no since in using two pieces of equipment and more mix than you need too.

As for Artillery Fungus, if anyone is having a problem with that, contact Michael Hinderliter, he has a great product for it. I spray it on the fungus, and you can rinse it away with very little pressure. Works great on vinyl and windows. I have not tried it on brick yet.

The product is called, AFR, Artillery Fungus Remover.

Guest

doug does it work on the fungus when it has been there for months even years?

Guest

Same here with the atf

Apex Roof Cleaning · Guest

Thanks guys, I'm gonna send them an estimate on monday.

Doug R · Guest

Diamond Roof Cleaning New Jersey (1-800-Roof-Clean) wrote:
doug does it work on the fungus when it has been there for months even years?

Good Question. I have never really asked how old the fungus. Customers rusually dont know they ahve it or what it is. Good Question just not ure how to answer it.

I can say it has worked everytime I used it.

The Roof Cleaning Institute Of America Training & Certification Forum "Find A Certified Roof Cleaner Directory"

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"Find A Certified Roof Cleaner Directory"