The Advantages And Disadvantages of Including a Layer of Roofing Shingles

Property owners typically question whether it's economical to add one more layer of tiles rather than tearing off the old ones. Putting a second layer traps moisture, which can substantially minimize the life-span of the shingles, ultimately costing extra in the lengthy run. While adding an additional layer might appear cheaper upfront, the potential damage and the minimized roofing life may make it less of a bargain than it seems.

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