The Pros and Disadvantages of Including a Layer of Roofing Shingles

Home owners typically ask yourself whether it's economical to add an additional layer of roof shingles instead than tearing off the old ones. Putting a 2nd layer traps dampness, which can significantly reduce the life expectancy of the roof shingles, inevitably costing a lot more in the lengthy run. While including an additional layer might show up less costly upfront, the potential damage and the reduced roofing system life may make it much less of a deal than it appears.

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