The Benefits And Drawbacks of Including a Layer of Roofing Shingles

House owners usually ask yourself whether it's cost-efficient to add one more layer of tiles rather than tearing off the old ones. Placing a 2nd layer traps wetness, which can significantly minimize the life-span of the shingles, inevitably costing a lot more in the long run. While adding an additional layer may appear less expensive upfront, the possible damage and the lowered roofing life may make it less of a bargain than it appears.

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