![](http://ceephotos.karcor.com/wordpress/wp-content/uploads/20110414-amead-Slate-Roof-on-Church-Ann-Arbor-MI.jpg)
Pictured here is a slate roof on a church in Ann Arbor, Michigan. Slate roofs are considered by many to be the foremost type of roof that a building can have. The reason is their extremely long lifetime, typically lasting numerous decades and sometimes even over a century! Many times the failure of a slate roof is actually due to corrosion of the nails that hold the slate pieces in place and not failure of the slate pieces themselves.
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