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post #1 of Old 02-10-2012, 08:43 PM Thread Starter
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Whats best roof cleaning agent

Hi my name is Charles I'm new to this site and I need help on what to use to clean very dirty roofs in South East Texas. I mixed 4 cups of green wash with 15 gal. of bleach and 34 gal of water. I sprayed on the roof and let sit for 10 minutes and it helped a little but not a lot. What can I do to improve this or what did I do wrong. I don't know how much it matters but it was about 54 degrees outside and very cloudy. Any help is greatly appreciated. Thank you, Charles.
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post #2 of Old 02-11-2012, 11:48 AM
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New Zealand is cold and damp especially in Hamilton. So we have Moss and Mold or lichen problem on Roofs. So we use a product that treats and controls this.

We just spray and leave. So this video of a guy somewhere in the US witha Rotowheel on the Roff - Weird
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post #3 of Old 02-11-2012, 08:44 PM Thread Starter
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Oh ok well yea I heard that I can leave the chemical on but im scared to do so because i heard the bleach can take color out if left on for a long time. But, I think ill keep rinsing it off but if I just use the water hose to rinse should I not use a nozzle. Can I just basically let the water just run down the roof ? Thank you for the response.
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post #4 of Old 02-12-2012, 01:20 AM
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I would assume you could just rinse it off with non pressurized water, how much do you think it would slow you down to actually pressure wash it again?

I really have done any commercial pressure washing with this company yet, but I used to love doing it in the summer. Super relaxing and you tend to pick up jobs with all the neighbors, more so even then carpet cleaning.
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post #5 of Old 02-12-2012, 07:39 AM
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Charles, what strength bleach did you use. If you use store bought bleach it is not going to work. Call me if you need too and lets discuss.

Houston Texas most trusted source for pressure washing and roof cleaning services. Call or text 2818838470


Houston Texas Soft Wash Roof Cleaning and Pressure Washing School
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post #6 of Old 02-12-2012, 07:41 AM
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Quote:
Originally Posted by newton1207 View Post
Oh ok well yea I heard that I can leave the chemical on but im scared to do so because i heard the bleach can take color out if left on for a long time. But, I think ill keep rinsing it off but if I just use the water hose to rinse should I not use a nozzle. Can I just basically let the water just run down the roof ? Thank you for the response.
Charles, NEVER NEVER RINSE. The Bleach will not take the color out of the roof. CAll me man, before you damage something and let's get you through this.

Houston Texas most trusted source for pressure washing and roof cleaning services. Call or text 2818838470


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post #7 of Old 02-13-2012, 02:26 AM
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post #8 of Old 03-06-2012, 08:15 PM
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liquid chlorine will work better than bleach
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