Spray copper sulfate over the moss affected roof using a garden or hose end sprayer blending and applying the material at a rate of 1 4 to 1 2 ounce of material per 10 gallons of water.
Copper sulphate roof moss killer.
If the moss is growing in thin layers spraying it with a copper sulfate solution kills it right away and the dead moss can easily be washed off the roof with a hose or pressure washer.
The easiest and cheapest way to kill and prevent moss algae is by using a copper sulfate solution.
A brownish color indicates the moss is dead.
Stop a moss problem from returning by installing strips of zinc or copper coated sheet metal just below the top ridge.
Prevent future moss growth by installing zinc or copper on the roof.
Copper strips and copper impregnated shingles should be avoided due to copper s toxicity.
Washing down the pipe will remove spider webs and leaves that clog up the pipe.
The copper sulfate solution will only kill the moss if it s allowed to remain on the moss for 24 hours prior to any watering including rain.
See the before and after shots 1 day after fohman applied the 4 copper sulfate to the roof.
If you collect water from your roof in rain barrels avoid using the water for your vegetable garden.
Apply copper sulphate to a roof to kill moss and limit regrowth.
Copper sulphate kills moss on contact making it ideal for killing moss growing on your roof.
Have someone not you get on the roof and run a garden hose down the vent pipe and turn the water on.
Billnovember 19 2017 at 8 04 am.
Copper is roughly 10 25 times more toxic to aquatic life than zinc.
See the before and after shots 1 day after fohman applied the 4 copper sulfate to the roof.
The sight of moss growing on a roof lends a house a romantic old fashioned air but the moss can lead to leaks and structural damage.
Various chemicals including copper sulfate are capable of killing moss and limiting regrowth.
When the pipe is.
Mix the water salt and vinegar in a bucket and then add as much soap as needed as long as it totals less than 20 percent of the mixture.
Any chemical that is used needs to be kept out of the stormwater system.