Posted for a friend.
Installing zinc strips on roof.
Apply z stop zinc strip 50 foot roll by butting it up against the ridge cap against both sides of all roof peaks see graphic.
It looks like they have nailed through the zinc in to the roof.
The roof must be cleaned of moss and or mildew.
This picture shows nails through the zinc strip.
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.
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.
These chemicals will create an environment that will prevent moss growth.
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.
Apply z stop below anything that blocks rain water flow such as chimneys gables and skylights.
Zincshield pure zinc strip to avoid ugly roof stains from moss algae fungus and mildew 50 foot roll includes bag of nails made in the usa 3 5 4 6 out of 5 stars 128 49 99 49.
In order to install zinc strips you must either nail them in over the asphalt shingles or break the seal and install them under a strip of shingles.
I don t actually have a roof.
Install z stop zinc strips 50 foot roll to keep it from growing back.
The zinc metal strips are made from a variety of metals.
In these cases installing a second zinc strip approximately halfway down the roof slope is recommended.
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.
Installing zinc strips to prevent moss growth is a leak liability says the asphalt roofing manufacturers association.
Step 4 maintaining the zinc strips.
If possible it is best to slide about 1 4 under the roof ridge vent roof cap or the top row.
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 strip will help control the growth of moss and mildew it will.
This article gives instructions for installing zinc strips at the ridgeline to inhibit moss.
By installing the strips on the ridge any water that runs over them will trickle down the roof carrying the zinc chemicals with it.
