Roof cleaning salution

[terryfish1968]

I have been trying everything from 30/70 to 100% chlorine Roof still looks dirty ... Any IDEALS ...

[Russ Spence]

Terry - what type of roof is it?

What was the temp where you were?

Are you using 12.5% if so are you absolutly sure it is fresh?

Post a few pics if you can or email them to me at russ@prokleenpressurewashing.com but it would be better if you post them

also last but not least what type of pump are you applying the chems with?

[terryfish1968]

I dont have any pictures . the S/H I used was 10% & was fiberglass shingles . It was very filthy . I just took a look at it. the part that I used the straight chlorine looks pretty good . Hey Russ I should tell you that I have never used bleach or chlorine and I am running test before I go jump on some one else house . I have a 3000 sq ft roof to do in a week or two

[Russ Spence]

Terry, its funny about the mix, in my oponion the water actually makes it work better.

With a 10% solution I would probably go 60/40 being 60% bleach

I use a high volume pupm that put out almost 10 gpm its easier to use a weaker mix with doing it that way

What type of pump do you have and are you using a surfactant?

[Chris Francis]

I agree with Russ 60/40 blend also it sound like your bleach might be weaker 10% did you us any type soap on the roof. I get foaming type soap from local chem supplier.

[terryfish1968]

I tryed using dawn ... but the roof turned a yellowish color ... I will see if the pool store has any 12.50% and try 60/40 ... I just want to get it right ... Thanks guy for the info ...

[Russ Spence]

if its the wrong type of Dawn ie Dawn Ultra, it will screw up the mix, its not stable with Sodium Hypochlorite

Where are you located?

[terryfish1968]

Rockford Il ... I used Dawn unleaded ... I think I should make a full batch ... I have been using a pump up sprayer ... I am wondering if that may have anything to do with it ...

[Russ Spence]

it has every thing to do with it, I never had great results until I switched to a dedicated roof pump

I use a Yamada air diaphram pump and a gas powered air compressor, prior to that I used a 12volt Fatboy system with a accumulator tank set at 60 psi

I still run 1/2 inch Goodyear Pliovic hose and a Titan stainless reel with a stainless manifold

To be honest you just cant do it properly with a pump up sprayer plus its way to time consuming and dangerous to boot!

[Russ Spence]

it has every thing to do with it, I never had great results until I switched to a dedicated roof pump

I use a Yamada air diaphram pump and a gas powered air compressor, prior to that I used a 12volt Fatboy system with a accumulator tank set at 60 psi

I still run 1/2 inch Goodyear Pliovic hose and a Titan stainless reel with a stainless manifold

To be honest you just cant do it properly with a pump up sprayer plus its way to time consuming and dangerous to boot!