Most cleaners charge under 50 per zinc strip plus installation for example.
Roof cleaning zinc.
The most common and environmentally friendly methods to clean zinc involve using lemon juice vinegar toothpaste or baking soda.
To avoid streaks start cleaning at the bottom edge of the roof and work your way up rinsing frequently with lots of fresh water.
The use of zinc strips zinc sulfate zinc chloride copper sulfate and potassium are other chemicals are widely used to clean roofs and keep them clean for many years.
The principle behind zinc roof strips can be seen on a stained roof just below the metal roof vents where typically the roof algae is not present in a 24 inch high pyramid pattern with the tip of the pyramid being the vent.
Spray this mixture onto the roof and agitate it with a soft bristled brush to get it clean.
Remember to test this solution on an out of the way area to ensure that it won t harm your roof s finish.
In short zinc strips are made of a toxic heavy metal and science is learning more about the dangers of this poisonous chemical.
Zinc strips can be somewhat effective at controlling moss growth.
Upon request many cleaners can apply zinc strips or anti growth sprays to protect a roof until the next cleaning.
These services cost extra.
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.
Even though zinc is a organic natural element zinc ions released by zinc strips is a highly toxic chemical to plants and fish.
Liquidzinc is a color free zinc ion rich formula developed to meet common situations that we have encountered.
That rain water then runs off and inhibits moss and other organic growth on your roof.
Also consider that using acidic substances like lemon juice and vinegar will remove the patina on your zinc objects which might not be desirable depending on the look you are going for.
The rust oleum jomax roof cleaner and mildew stain remover is a dyi consumer grade roof cleaning product that was designed to be added with bleach and water to clean roofs as it explains on the rust oleum website this product is designed to easily remove unsightly streaks dirt and mildew from your roof and is safe on both siding and trim.
Zinc being a heavy metal is highly toxic to plants as the metal leaches away it kills the mold and gloeocapsa magma roof algae that are responsible for the black streaks roof stains.
Other chemical ways to clean a roof zinc and potassium.