
01-03-2012
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Senior Member
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Join Date: Apr 2006
Posts: 7,104
Rep Power: 8
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The copper wouldn't reduce UV damage, it would end it. And the copper might discourage rot, as copper is probablly going to kill anything trying to eat the wood fibers. Maybe it also will trap heat, keeing the spreaders drier and helping that way, rather than just trapping moisture in the gap?
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