zinc

Originally Posted By: mike garcia
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Has anyone ever heard of ztrap I beleive it is put on roofs to keep


corrosion away . What is zinc and it’s uses for this product. Please correct


me if i am wrong with the name


Originally Posted By: Guest
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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
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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! icon_idea.gif



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Originally Posted By: jhagarty
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The Zinc strips prevent moss growth and staining on the roof.



Joseph Hagarty


HouseMaster / Main Line, PA
joseph.hagarty@housemaster.com
www.householdinspector.com

Phone: 610-399-9864
Fax : 610-399-9865

HouseMaster. Home inspections. Done right.

Originally Posted By: kmcmahon
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Hmmm…and what did I say? icon_wink.gif



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Originally Posted By: Larry L Leesch
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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
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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.


Adam


Originally Posted By: aslimack
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Also, you see it a lot under pine trees.


Adam


Originally Posted By: jpeck
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Zinc is a softer metal, thus it ‘dissolves’ in the rain and is carried down the roof, preventing that growth where it runs down.


Ever notice how clean the roofs are below the lead flashings on plumbing vent stacks? Same thing is happening.


--
Jerry Peck
South Florida

Originally Posted By: jhagarty
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kmcmahon wrote:
Hmmm...and what did I say? ![icon_wink.gif](upload://ssT9V5t45yjlgXqiFRXL04eXtqw.gif)


Kevin:

My response was in reference to you not encountering this. I have seen it on several homes in this area.


--
Joseph Hagarty

HouseMaster / Main Line, PA
joseph.hagarty@housemaster.com
www.householdinspector.com

Phone: 610-399-9864
Fax : 610-399-9865

HouseMaster. Home inspections. Done right.

Originally Posted By: tvargas
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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


Tony


http://www.z-stop.com/


Originally Posted By: Blaine Wiley
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I use Zinc’s on my rudders and propeller shafts as sacrificial anodes to prevent galvanic corrosion. Oooops, wrong thread icon_lol.gif icon_lol.gif