I am doing the roof I have been talking about. TOO LATE>>>>>>>>>>>al ready tried it on my own roof. Seemed to work very well on a roof that is 18 years old and heavy black marks. What I did was take a gallon of sodium hydroxide and 2 gallons of sodium hyprochlorite and the rest water in a 5 gallon pail. Then cut it further by 4 to 1 on a downstream. I did it myself....would never forgive myself if I blew up gloria
Anyone out there try this combo? Guess I will experiment alittle more. The M-1 is around 20 bucks a gallon which is pretty high for doing roofs if I only need the sodium hypochlorite. I let it dwell maybe a little too long also not sure...was harder to get off one side then the other. Anyway...thanks all!
Dennis

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Dennis A. Cormier and Gloria A. Wagner
North Georgia Spray Masters, Inc.
spraymasters@hotmail.com

<FONT COLOR="#000080" SIZE="1" FACE="Verdana, Arial">[This message has been edited by spraymasters on March 24, 2000 ]</font>