Shingles are typically slim, wedge-formed slabs of Wooden which can be made by specific sawing. Shakes are made by splitting Wooden, and they're thicker wedges with a rougher texture. Longevity is dependent upon situation and upkeep. In reasonably dry climates, a Wooden shingle or shake roof can final 60 years; https://thornton86420.wikihearsay.com/2722441/article_under_review