Slate roofs can last more than century – if installed correctly

Slate roofs can last more than century – if installed correctly By LEIGH PROTIVNAK (originally on TheDerrick.com) A properly installed slate roof can last as long as 120 years with little to no maintenance. But slate roofing can be a disaster if the installer doesn’t use the proper flashing and overlapping, roofer Barry Smith told attendees at the recent Victorian Architecture Conference in Oil City and Franklin. Slate roof shingles...

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