Posted for a friend.
Where to put zinc on a roof.
I don t actually have a roof.
It looks like they have nailed through the zinc in to the roof.
In traditional roofing this structure provides a continuous support for the zinc whereas in engineered façades metal railing and point fixing systems are employed.
The information provided in this section can be used as a guide to the basics of zinc roof construction.
If possible it is best to slide about 1 4 under the roof ridge vent roof cap or the top row.
A good product to consider is roof be clean see www roofbeclean for product information.
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.
The roof must be cleaned of moss and or mildew.
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.
The corrosion releases the zinc.
A zinc strip can be installed on a roof to prevent moss from growing the zinc prevents the growth of the moss as the strips become corroded from moisture.
Apply z stop below anything that blocks rain water flow such as chimneys gables and skylights.
Galvanized steel which is created by using a soft layer of zinc to protect the inner layers is the most common type of steel roofing.
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.
This article gives instructions for installing zinc strips at the ridgeline to inhibit moss.
Long lasting corrosion resistant and recyclable zinc is a softer metal and can be damaged by hail or extreme weather.
Zinc strip will help control the growth of moss and mildew.
The moss is incapable of digesting the moisture containing chemicals in zinc and is then incapable of growing.
Install z stop zinc strips 50 foot roll to keep it from growing back.
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.
Rain water must run over z stop to become effective.
In these cases installing a second zinc strip approximately halfway down the roof slope is recommended.