THERE WAS ON AN ARTICLE ON IN LAST WEEKS CHAROTTE’S PAPER ROOF CLEANING. I THOUGHT THE FOLLOWING FOUR PARAGPAGHS OF THAT ARTICE WOULD BE OF INTEREST. I AM QUOTING WORD FOR WORD FROM THE ARTCILE;
Dale Walton, technical service supervisor for shingle maker Certainteed, said that the Pennsylvania company recommends a couple of products to clean asphalt shingle roofs: Safer’s Moss and Algae Killer, and Shingle Shield roof and deck cleaner.
Also, we recommend a home made mix,” he said. “One part laundry bleach, three parts water and just a small amount of trisodium phosphate.”
The phosphate is important, so be sure you choose real TSP from the paint or hardware store. You’ll see some products that call themselves some variation of TSP that lack phosphate.
You’ll also find online recipes for homemade mixes that include lye, or pure TSP. Walton has seen those, too and says they’re OK. But if you’re going to use such caustic mixes, be very, very careful.
“TSP would be the best,” he said. “You need the phosphate.
I HAVE SEEN IN THE PAST, MEMBERS QUOTING FROM THE ARMA ABOUT WHAT THEY STATE TO BE USED ON ROOFS,(AND THE ARTICLE IS QUITE OLD) BUT THIS QUOTE IS UP TO DATE
I HOPE THIS WILL SETTLE THIS DEBATE.-------------NOT REALLY!!!!!!!
