How To Install Zinc Strips On Roof

On roofs with moss algae mildew or fungus the existing growth must first be removed by pressure washing or brushing then the root systems must be chemically treated and destroyed see magazine articles for bleach solution.

How to install zinc strips on roof.

In november of 2011 i wrote a blog post about using zinc strips to prevent moss from growing on the roof or possibly to kill moss. You still need to remove the existing moss algae. The zinc metal strips are made from a variety of metals. Using 2 5 or 3 5 wide zincshield install by butting the zinc strip against the ridge vent roof cap or the top most row of shingles at the roof ridge.

The strips are then coated with zinc. Copper strips however do work and should be exposed 2 and placed every 10 up the roof. Like rooflover said the zinc strips don t work and they certainly don t work on existing roofs that already have moss algae on them. Step 4 maintaining the zinc strips.

The roof must be cleaned of moss and or mildew. A good product to consider is roof be clean see www roofbeclean for product information. I conducted a fairly long term experiment by installing zinc strips on a moss covered garage roof and showed before and after photos after the zinc had sixteen months to work its magic. If possible it is best to slide about 1 4 under the roof ridge vent roof cap or the top row.

If the roof extends for more than 14 4 27 m down from the ridge where the zinc strip is installed re growth can occur. In these cases installing a second zinc strip approximately halfway down the roof slope is recommended. Zinc strip will help control the growth of moss and mildew it will. Wouldn t that allow water through the roof.

This picture shows nails through the zinc strip. These chemicals will create an environment that will prevent moss growth. I don t actually have a roof. It looks like they have nailed through the zinc in to the roof.

Install z stop zinc strips 50 foot roll to keep it from growing back. Preventing roof moss with zinc strips in this video this old house general contractor tom silva shares tips for keeping a roof free of moss and mold by this old house.