Is there an alternative to installing zincshield to avoid roof stains.
Zinc powder for roof.
Wet roofs may be slick.
Aug 24 2018 zinc sulfate moss treatment is a proven moss killer.
Zinc sulfate can be applied as a powder at a rate of 3 pounds per 600 square feet or combined with water at a rate of 3 pounds per 5 gallons and sprayed over 600 square feet of roof surface.
It works with any wood flat tile metal or composition roof.
This example of roof vomit is a zinc sulfate or zinc chloride type compound that comes in a powder form.
Zinc sulfate general information.
Z stop is a zinc moss algae and fungus inhibitor that is applied in strips to old or new roofs.
The natural action of rain water time releases zinc carbonate a proven fungi stat which then washes down the roof preventing destructive moss algae and fungus growth.
Manufacturers recommend that powder should be applied.
To use zinc sulfate one can apply powder directly to moss areas.
When you see homes across the street with lines of white powder striping the roof you to use zinc sulfate one can apply powder directly to moss areas.
The active ingredient for some moss killers is zinc sulfate monohydrate usually at concentrations of 99.
Follow the first aid procedures listed on the package directions.
Do not risk falling off your roof.
Dry powder moss killers are applied by sprinkling the powder in multiple lines parallel to the ridge of the house spacing the lines about 2 to 4 feet apart.
Over time as rain falls zinc residue coats the roof to prevent moss growth.
According to the manufacturers zinc sulfate will not stain roofs or corrode aluminum and galvanized gutters.
One brand name is moss b ware.
503 622 9274 moss treatment portland oregon window cleaning portland or moss removal portland oregon viewrenew llc http nicestwindowcleaners c.
Liquidzinc works the same way that zincshield works by coating the roof with zinc ions that keeps the roof clean free of stains algae moss lichen and mildew.
Liquidzinc is a color free zinc ion rich formula developed to meet common situations.
What this means is roofing contractors are allowed to mix the compound at any concentration level they desire.
If exposed to zinc sulfate powder by swallowing inhaling or getting it in your eyes contact poison control and your doctor immediately.
When it rains the water mixes with the powder and runs down toward the eaves.
Low cost and availability.
We developed a product liquidzinc to do just that.
Preventing roof moss with zinc strips in this video this old house general contractor tom silva shares tips for keeping a roof free of moss and mold by this old house.