The Benefits And Drawbacks of Including a Layer of Roofing Shingles

Homeowners frequently question whether it's economical to include one more layer of shingles instead than tearing off the old ones. Positioning a 2nd layer traps wetness, which can significantly decrease the life expectancy of the tiles, inevitably costing more in the lengthy run. While including an additional layer may appear less expensive upfront, the prospective damage and the reduced roof life may make it much less of a bargain than it appears.

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