Do I need to Walk the roof

[newbie pete]

sorry Im an idiot. The pump is a Delevan.

[Hottt Blaster]

Well i can give you a few ideas, If you want a good chemical mixture for your algea and mold contact owen-cornings they are a roofing (shingle)manufacture, I had the mixture a while back but dont have it now. It will remove all of it. Far as the roof use a pitch witch the spayer is on wheels rolls up and down the roof, You can apply your mixture thru downstream and then rinse low pressure,using the pitch witch. I made my own years ago they are very easy to make. I was a journyman roofer for over 18 years, before i got into this business and i cant stress enough If its not a walkable roof stay off, the risk for slipping by yourself or workers even damgage to the roof is great. Also make sure your insurance covers any roof work you might be doing,If they dont know your doing that type of work they might not cover a claim, Hope this helps... Tom

[newbie pete]

Thanx. that def. helps but I was trying to stay away from the pitch witch. I thought maybe just rinse it from the gutter with a garden hose. anyone ever done that on a roof like this?

[Hottt Blaster]

Garden hose yet LOL you want advice but still ask the same questions ???

[newbie pete]

I know. I guess I'm looking to see if it'll work from someone whos done it before.

[Hottt Blaster]

Been there done it before wish i could give you more, But please read what i posted to you might be old but know what i am talking about,,

[newbie pete]

Im checking out owens corning's website right now. Thanks for the help. Hey with age comes wisdom right?!

[Hottt Blaster]

Well like to think so LOL If you want to contact us please use the email addy dont mind helping out tom

[Mark]

Is this the link you are referring to:

Troubleshooting Your Roof

ALGAE GROWTH


CAUSES
Algae growth causes a dark discoloration on roofs. The algae is usually brown to black in color which results in a streaked, dirty looking rooftop. It can be mistaken for soot, dirt or tree droppings, which typically produce only localized discoloration. It's caused by the growth of air-borne algae which deposits on your roof. The good news is that algae growth does not affect the service life of your roofing material. It occurs most often in warm, humid climates such as the Southeast (where algae-resistant shingles are available).

RECOMMENDATIONS
Discoloration of roofs caused by fungus or algae is difficult to remove, but may be lightened by spraying a diluted solution of chlorine bleach, trisodium phosphate, and water onto the roof. Solutions range from one cup TSP, one gallon bleach and four gallons of water, to one cup TSP and 2.5 gallons each of bleach and water. This solution can then be rinsed from the roof in 10 to 15 minutes. Do not scrub. Scrubbing will loosen and remove granules. After spraying be sure to thoroughly flush the roof and the greenery around the home (grass, bushes and shrubs) with water. The effectiveness of this type of cleaning may only be temporary, and the discoloration may recur. High pressure washing is not recommended due to the possibility of removing granules, thereby shortening the life of the Roofing System.

For a more permanent solution, re-roof with Owens Corning Algae-Resistant Shingles. They are specifically designed to inhibit most algae growth for extended periods of time and are backed by our strongest product and algae resistance warranties* available to homeowners.

www.owenscorning.com/around/roofing/troubleshooting.asp

[Hottt Blaster]

Thats the one... Thank you Mark. Tom