How To Install Zinc Strips On Roof

This article gives instructions for installing zinc strips at the ridgeline to inhibit moss.

How to install zinc strips on roof.

It looks like they have nailed through the zinc in to the roof. Copper strips however do work and should be exposed 2 and placed every 10 up the roof. 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. I don t actually have a roof.

If possible it is best to slide about 1 4 under the roof ridge vent roof cap or the top row. Wouldn t that allow water through the roof. These chemicals will create an environment that will prevent moss growth. In these cases installing a second zinc strip approximately halfway down the roof slope is recommended.

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. 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. Posted for a friend. 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.

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. 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. This picture shows nails through the zinc strip. By installing the strips on the ridge any water that runs over them will trickle down the roof carrying the zinc chemicals with it.

The zinc metal strips are made from a variety of metals. The strips are then coated with zinc. A good product to consider is roof be clean see www roofbeclean for product information. You still need to remove the existing moss algae.

The roof must be cleaned of moss and or mildew. Install z stop zinc strips 50 foot roll to keep it from growing back.