The most expensive component of replacing a residential roof is typically labor costs, followed closely by the price of high-grade raw materials (such as architectural shingles, natural slate, or metal panels). Removing old, multi-layer roofing materials, hauling debris away in commercial dumpsters, repairing rotted structural wooden decking, and paying skilled installation crews account for the largest share of total project expenses, often making labor significantly costlier than the materials themselves.
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