Another thing that you can do to harness the power of updated shingles over algae is to install copper or zinc strips to certain parts of your roof.
Will zinc strips on the roof damage aluminum gutters.
Aluminum steel or copper because there is no electrolytic activity between the zinc carbonate and the metal gutters.
Bottom line zinc loaded shingles or zinc coated metal strips on the top of the roof or liquid zinc will not damage metal rain gutters.
To use zinc sulfate one can apply powder directly to moss areas.
Be careful about using copper flashings.
Manufacturers recommend that powder should be applied thoroughly for example up to three pounds for every 600 square feet.
By this old house.
Some homeowners are unaware that they may or may not have zinc strips installed.
According to the manufacturers zinc sulfate will not stain roofs or corrode aluminum and galvanized gutters.
Zinc is far more compatible with steel roofing nails and aluminum gutters.
Preventing roof moss with zinc strips.
If you are unsure or would like us to let you know if they are working we are happy to help.
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Sometimes it is difficult to see the roof and we have had clients think that zinc strips were installed but ultimately none were or vice versa.
In this video this old house general contractor tom silva shares tips for keeping a roof free of moss and mold.