Originally Posted By: Guest This post was automatically imported from our archived forum.
Mike,
Google words like “zinc” “galvanic reaction” “anode” “cathode” “zinc chromate” “galvanic scale”“zinc oxide”. At the end of an hour you’ll know a lot and have the answer to your question.
Originally Posted By: kmcmahon This post was automatically imported from our archived forum.
Funny you mentioned that. Yesterday I did an inspection on a roof that had a thin metal flashing type material under the ridge shingles. I questioned the homeowner on it and he said it was zink strip to keep the moss from growing on the roof. I had never seen or hear of it before!
Originally Posted By: Larry L Leesch This post was automatically imported from our archived forum.
In the “For what it’s worth” column, Celotex Roofing Company was making a shingle that they called FRS. FRS meaning Fungus Resisting Shingles. It had a one inch strip of zinc coated granules at the bottom edge of the shingle. It worked quite good. Ever notice that the shingles are briter around the metal vent stacks? Now you know why.
Originally Posted By: aslimack This post was automatically imported from our archived forum.
Its usually located a course or two down from the peak. I would say that approximately 1.5-2 inches is exposed under the shingle. It bleeds down over time and does to an extent inhibit the growth of moss. Used under mature trees, where moss growth is a problem. I’ve seen it plenty of times. Heard it is a little expensive with limited effectiveness, at least in duration.
Originally Posted By: tvargas This post was automatically imported from our archived forum.
Kevin
Yes it’s called Z stop . Of course other names are used for this stuff.I seen it a few times around this area. The common house uually takes 3 stripsat about $30.00 a strip but it works well to prevent moss growth and staining on the roof. I will send you a website on this stuff. Hope this helps
