Finally the ridge cap goes on.
Installing zinc roof strips.
Zinc is sold as a moss prevention product.
Step 3 installing the zinc strips.
The premade ones are much quicker and probably neater looking.
It works with any wood or composition roof.
If the roof has multiple ridges install zincshield at the top of each ridge.
Rain water must run over z stop to become effective.
Enough of the zinc protrudes so that the metal gradually leaches out with every rain to impede moss accumulation.
Watch this video decide for yourself whether it s a good investment.
Z stop a zinc strip 50 foot roll that s easily installed on your roof acts as a barrier to roof moss algae and fungus growth protecting the roof its appearance and value.
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.
Step 1 safety.
Use corrosion resistant roofing nails with neoprene washers spaced 12 305 mm apart.
Install z stop zinc strips 50 foot roll to keep it from growing back.
Apply z stop below anything that blocks rain water flow such as chimneys gables and skylights.
Do not insert more than 1 25 4 mm under the shingles.
Be careful moving up and down the ladder.
Zincshield is installed at the top of the roof below the ridge cap ridge vent or below the first row of shingles.
Install under the ridge cap shingle on both sides of the ridge.
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.
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 can cut strips of zinc flashing copper and lead work too and slide them under a course of roof shingles to kill lichen and moss growing there or you could just buy these premade strips from shingle shield.
Step 2 preparing the roof.
Z stop is a zinc roof moss algae and fungus inhibitor that is applied in strips to old or new roofs.
How to install a zinc strip to prevent moss on your roof.
At the ridge before a ridge cap goes on you also nail down the zinc strips placed so they will protrude beyond the ridge cap.
It should normally be installed on both sides of each roof ridge see example pictures suggested zincshield installation is indicated in red.
Install zinc strip on both sides of the ridge.