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I'm preparing to install a metal roof on my home. It already has a tin shingle roof. Is there any reason why I shouldn't Install the new roof on top of the existing roof?
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I do get concerned about differences in expansion and contraction. However, if your new roof can be installed over battens, putting battens over the existing metal shingles may work. I would suggest choosing your new metal roof and then working with its manufacturer to figure out proper install procedures.
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Thanks for your response. My concern, however, is that the metal that i've purchased is rather thin. I don't know the exact guage, but it seems to me that the battens would create alot of weak spots. Am i mistaken?
4/17/2009
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4/18/2009
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