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CertainTeed Copper Granules
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July 27, 2018 at 9:11 a.m.
EcosourceRoofing
Hey guys. So my rep at CertainTeed told me the other day that their Landmark line (and basically every other shingle) has at least 10-11% copper coated granules. If it's true, that's huge for me. But I can't find the proof anywhere. Does anybody have any actual documentation about the copper content in Landmark series?
Thank you
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