Chemical moss control for roofs decks and sidewalks zinc strips potassium salts zinc sulfate zinc chloride zinc copper bleach.
Copper sulfate crystals for roof moss.
See the before and after shots 1 day after fohman applied the 4 copper sulfate to the roof.
Unlike the chlorine component in sh which flashes off reverting back to the salt water from whence it came the copper stays put.
Zinc strips are usually considered the long term solution to controlling mosses see photo at right.
You can find copper sulfate at stores like lowes and tru value hardware being sold as root killer dries out the roots so they break away from the sides of the pipe.
A brownish color indicates the moss is dead.
You dissolve the crystals by suspending them in water 1 gal per 16 oz.
Skylights are surrounded by galvanized flashing that has suppressed the growth of mosses below the skylights.
Copper sulphate kills moss on contact making it ideal for killing moss growing on your roof.
This solution has some residual jul 19 2014 watch the fohmertoo spray 4 copper sulfate on a roof.
Zinc strips general information.
You can also wash moss off with a copper sulfate solution one half ounce to 10 gallons of water.
Also copper sulfate and zinc sulfate comes both as a zinc powder and as zinc sulfate can leave yellow white deposits on some stones which are more acidic or are exposed to acidic lawn fertilizer so generally the pure zinc powder is a safer bet on paving generally leaves little color change and washes off pretty well though leaving it in.
Unlike the salts in sh the action is more highly galvanic.
See the before and after shots 1 day after fohman applied the 4 copper sulfate to the roof.
If the moss is growing in thin layers spraying it with a copper sulphate solution kills it right away and the dead moss can easily be washed off the roof with a hose or pressure washer.
Copper sulfate kills moss on contact making it ideal for killing moss growing on your roof.
The easiest and cheapest way to kill and prevent moss algae is by using a copper sulfate solution.
500 to 600 square feet per gallon 25 foot projection.
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.