Moss treatment

[Robert E Lee]

I don't see very many wood shingled roofs here in this part of the Midwest, but had one today that had some moss in place on the shady side of the house and the homeowner or someone had installed zinc strips at the peak. I have never heard that they would be effective at preventing moss, algae yes, but moss?? Anyone see that in the wood shingle/shake country?

Robert E Lee

GENERAL Home Inspections

[Bill Kibbel]

It will not kill and/or remove existing moss. The zinc will help keep it from growing or returning, but for only about 3'-4' below the strip.

Zinc sulfate is a common ingredient in moss control products to prevent, not eliminate moss growth.