Olympic Spray Service uses Zinc Sulfate to control moss on roofs. This 
treatment may last for up to three (3) years. Olympic Spray Service guarantees it for one year (1 yr.). We tend to treat from the gutters without getting up onto the roof. Read the rest of this entry »
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Brian Demossing a Roof
I just received this picture, from a customer, of Brian demossing a roof. Brian applies Zinc Sulfate to the roof. We guarantee it for one year. The treatment often lasts for three (3) years. If your roof requires demossing please give us a call at 457-4341 or 1-800-828-5508.
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Moss can be on your roof, on your walk or driveway or in your lawn or landscape. Two different materials are used to treat for moss. On your roof or driveways a salt of Zinc Sulfate can be used. Read the rest of this entry »
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