How Long Do Zinc Roof Strips Last

What is zincshield.

How long do zinc roof strips last.

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. The exposed zinc will oxidize forming zinc oxide. 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. 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.

Zinc is sold as a moss prevention product. Many people seek zinc strips because they have been well marketed and often recommended. Sometimes it is difficult to see the roof and we have had clients think that zinc strips were installed but ultimately none. 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.

Homeowners can install strips of zinc purchased at a hardware store. 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. Zinc strips are also supposed to be effective at preventing black stains from showing up on the roof.

Zinc strips kill moss. 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. 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. Very large roofs may require extra protection.

2 5 3 5 and 6 0 see faqs for specific applications for each width. Three widths are available. The zinc strip is installed along both sides of the ridge of the roof so that most of the strip is exposed. Zincshield is a 99 2 pure zinc strip a trace of copper is added to provide strength and proper hardness in 50 foot rolls.

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. Every time it rains some of this zinc oxide leaches down the roof inhibiting the growth of moss and mildew. Watch this video decide for yourself whether it s a good investment. I ll report back with the results in a.