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"new" 10 year old Timberline roof shingles still usable?

kiliklimber's picture

I have 3 squares of Timberline 30  year roofing shingles left over from roofing my house. They are aproximately 10 years old, still in the original wrappers and have been stored in my garage. Are they still viable to use on my new shed or should I throw them out and buy new. I don't want to be penny wise and pound foolish :)

Thanks for any input you may have!

Unless they've been stored in (post #215418, reply #1 of 2)

Unless they've been stored in an area which is heavy with petroleum fumes they should be fine.  If there's a problem you won't be able to peel them apart.

Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

Thank you for your advice. (post #215418, reply #2 of 2)

Thank you for your advice. They have been stored in a stack on top of a clean concrete floor, with no real exposure to petroleum fumes. I opened the top package and the shingles are still flexible and aren't stuck to one another so I was hoping that they are still good to use.