Monthly Archive
for: ‘February, 2011’

Zinc Sulfate Treatment

Zinc Sulfate Treatment   Many Portland roof cleaning companies are quick to pressure wash your composition roof, instead of a zinc sulfate treatment  Before making this decision there are other alternatives to pressure washing. One method is to treat the roof with Zinc sulfate and let mother nature do it’s work. Our company has been […]

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Zinc Sulfate

Zinc Sulfate   We applied Zinc sulfate to this roof which had a lot of moss growing on the composition shingles. Zinc sulfate is heavily regulated by the US Department of Agriculture as it is a pesticide for controlling moss growth. In Oregon it is required by law that anyone applying zinc sulfate to control […]

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