Black Streaks on Roof (Mold)
Debbie from New Jersey
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RE: Black Streaks on Roof (Mold)
Chlorine helps to/spray it on leave it on and then let it rain on it no rinsing/1cup of chlorine in your garden sprayer it with 1 gallon of water!
Post by lilkat1
RE: Black Streaks on Roof (Mold)
The AMRA (American Manufactures Roofing Association) and GAF (the largest maker of shingles)recommends a mixture of Bleach, TSP and Soap. Bleach in perfectly safe to use, unless you are trying to sell a product. Most companies that are trying to "Scare" not to use bleach are simply pushing there products. Its basic marketing.
The products they are selling contain Sodium Hydroxide. For those of you who don't know, SH is a caustic lye and a VERY powerfull degreaser. Oh yea I should mention that your shingles hold the granulars on with tar. Tar is a oil/"Grease" product.
I own a professional exterior cleaning business and use bleach safely and with instant sucess. Of course care should be used. You would never just spray bleach on your plants, take the time to water them before, during and after and you will have no problems. The Ions in the Sodium Hypoclorite begin to break down upon contact with an organic material (mold/fungus). I'm not pitching a product I just want you to be well informed.
Post by ecskyinc
RE: Black Streaks on Roof (Mold)
The AMRA (American Manufactures Roofing Association) and GAF (the largest maker of shingles)recommends a mixture of Bleach, TSP and Soap. Bleach in perfectly safe to use, unless you are trying to sell a product. Most companies that are trying to "Scare" not to use bleach are simply pushing there products. Its basic marketing.
The products they are selling contain Sodium Hydroxide. For those of you who don't know, SH is a caustic lye and a VERY powerfull degreaser. Oh yea I should mention that your shingles hold the granulars on with tar. Tar is a oil/"Grease" product.
I own a professional exterior cleaning business and use bleach safely and with instant sucess. Of course care should be used. You would never just spray bleach on your plants, take the time to water them before, during and after and you will have no problems. The Ions in the Sodium Hypoclorite begin to break down upon contact with an organic material (mold/fungus). I'm not pitching a product I just want you to be well informed.
Post by ecskyinc
RE: Black Streaks on Roof (Mold)
The AMRA (American Manufactures Roofing Association) and GAF (the largest maker of shingles)recommends a mixture of Bleach, TSP and Soap. Bleach in perfectly safe to use, unless you are trying to sell a product. Most companies that are trying to "Scare" not to use bleach are simply pushing there products. Its basic marketing. The products they are selling contain Sodium Hydroxide. For those of you who don't know, SH is a caustic lye and a VERY powerfull degreaser. Oh yea I should mention that your shingles hold the granulars on with tar. Tar is a oil/"Grease" product.
I own a professional exterior cleaning business and use bleach safely and with instant sucess. Of course care should be used. You would never just spray bleach on your plants, take the time to water them before, during and after and you will have no problems. The Ions in the Sodium Hypoclorite begin to break down upon contact with an organic material (mold/fungus). I'm not pitching a product I just want you to be well informed. If you would like more information seach for exterior cleaning solutions inc.
Post By Michael Dennis (Guest Post)
RE: Black Streaks on Roof (Mold)
Hi visit my web site for how we remove the black streaks. Note: we do not use high pressure and have been in business since 1996.
WWW.hrenterprises.net/hrenterprises.htm
Post By George (Guest Post)
Roof Cleaners
There is a category of cleaners designed for your roof.
Too many household cleaners can damage the roof (such as bleach). And you should never pressure wash a roof. The granules protect the roof, pressure washing destroys them.
We use Cleaner Today ( www.cleanertoday.com ) ROOF QSE and ROOF OX for stained, streaked algae covered roofs.
The cleaners are safe for the roof, and do a great job cleaning.
Post By Scott Sellinger (Guest Post)
RE: Black Streaks on Roof (Mold)
Yes , Bleach will kill the mold , however there are 2 problems with it.
(1) Bleach that drains on your ground around the house can and probably will neutrilize you termite protection and if your exterminator finds out will void your termite contract.
(2) If you use something (hopefully clear) to fill the areas where the mold WAS it will come back even stronger than before.
Post By Dennis (Guest Post)
RE: Black Streaks on Roof (Mold)
Shannon in NC: is the garden sprayer you're referring to the same one that is used to spray fertilizer 'food,' like for your roses?
Alobarbear: your idea seems doable for my low tech approach, altho if the garden sprayer is the same as the one i've got, i could try that, too.
Post By gator10tx (Guest Post)
RE: Black Streaks on Roof (Mold)
i have used Tide powder laundry detergent. Mix one cup per gallon of water and pour it from the roof peaks. do not rinse, the rain will eventually wash it out and the soap powder kills the mold.
Post by alobarbear
RE: Black Streaks on Roof (Mold)
Having lived in the Pacific Northwest where roofs tend to accumulate mold...I learned that there is a Zinc strip which can be applied to the roof to prevent this.Of course this will be after you are able to get rid of the mold which is already there. I suggest phoning a roofer for both instances. Good luck!
Post By Enter Marian (Guest Post)
RE: Black Streaks on Roof (Mold)
My husband and I use a garden sprayer with greesed lighting and bleach and then pressure wash our house and this usually brings off all the mold and any other stains that are on there.
Post by shannon in NC
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