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.
How to install zinc strips on a tile roof.
If preferred the zinc strip can be glued in place using a high grade exterior construction adhesive.
Apply z stop below anything that blocks rain water flow such as chimneys gables and skylights.
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.
Use corrosion resistant roofing nails with neoprene washers spaced 12 305 mm apart.
The premade ones are much quicker and probably neater looking.
Locate nails so that they are covered by shingles above.
For tile roofs 1.
Step 1 safety.
Install under the ridge cap shingle on both sides of the ridge.
Unless you are installing the ridge tile at.
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.
Finally the ridge cap goes on.
Install z stop zinc strips 50 foot roll to keep it from growing back.
Step 2 preparing the roof.
Be careful moving up and down the ladder.
This way the next course hides the nails holding down the previous one.
Step 3 installing the zinc strips.
That is you nail down a course of shingles then lay down the new course above the last course working up the roof.
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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.
Put on your protective eyewear work boots and work gloves before you begin.
If possible it is best to slide about 1 4 under the roof ridge vent roof cap or the top row of shingles.