Overlaying shingles over a 100 year s...

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Author Message   John Kibler Posted on Friday, March 04, 2005 - 09:18 pm:        We are considering overlaying over a very old slate roof. Having concerns about removal of the old slate before reroofing. Have seen overlaying several times in our area, but still have questions   Walter Musson Posted on Saturday, March 05, 2005 - 06:02 am:        What type of roofing do you intend to lay over the slate? There aren't many good reasons to overlay,and numerous ones why thats not a good idea. You will wind up with a far superior end result if you remove the old,make sure the deck is sound,replace the underlayment and flashings,and lastly install the product.   Steve Taran Jr Posted on Sunday, March 06, 2005 - 01:06 pm:        Thats trouble trouble trouble!!!   Grumpy Posted on Thursday, March 10, 2005 - 06:20 pm:        I'm all for tearing off IF the slate is indeed ready to be torn off. I really really try to never lay one roof over another roof. What are your concerns about tearing off the slate?