How Long Do Zinc Roof Strips Last

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.

How long do zinc roof strips last.

Zincshield is installed at the top of the roof below the roof ridge vent roof cap or below the first row of shingles and below any. 2 5 3 5 and 6 0 see faqs for specific applications for each width. Zinc strip moss control on roofs. 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 8 to 1 4 under the roof ridge vent roof cap or the top row of shingles. In addition the strips often begin to warp over time and even the small clean streaky sections will begin to see moss and algae growth. The moss dies and the roof stays moss free for 10 feet under a zinc strip for five years or so if it stays in place and stays flat. I m starting a long term experiment on my own house.

The zinc strip is installed along both sides of the ridge of the roof so that most of the strip is exposed. Very large roofs may require extra protection. Three widths are available. 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.

What is zincshield. Patrick has a lot to say about you using zinc strips on your roof. Homeowners can install strips of zinc purchased at a hardware store. The exposed zinc will oxidize forming zinc oxide.

Zincshield is a 99 2 pure zinc strip a trace of copper is added to provide strength and proper hardness in 50 foot rolls. Zinc is sold as a moss prevention product. I ll report back with the results in a. Some homeowners are unaware that they may or may not have zinc strips installed.

Watch this video decide for yourself whether it s a good investment. 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. Zinc strips kill moss. Many people seek zinc strips because they have been well marketed and often recommended.