The Benefits And Drawbacks of Adding a Layer of Shingles

Property owners typically question whether it's economical to include one more layer of roof shingles rather than tearing off the old ones. Positioning a second layer traps dampness, which can dramatically decrease the life expectancy of the roof shingles, eventually costing more in the lengthy run. While including one more layer may show up less costly upfront, the potential damage and the decreased roofing system life may make it less of a deal than it seems.

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