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How to keep the algae and moss off your roof. In this video I'll show just how easy it is.
When the rain water passes over the cooper flashing a little copper gets mixed into the rain. Witch acts as a poison to the moss and algae. The cooper will change color to a green like grey, and that's a lot better looking then all that moss and algae.
The trick to it is to put the flashing under the tab of the shingle as far up the roof as you can. You can use a roofing tar and a few nails about every 32 inches apart. Making sure the flashing lays as flat as it can.
It's always a good idea to run it the total length of the roof, I mean way not, you're up there anyway.
Besides cooper you can use zinc coated flashing but may be harder to find in the stores. All flashing can be found at any home center..