The Pros and Disadvantages of Adding a Layer of Roofing Shingles

Home owners frequently wonder whether it's economical to add an additional layer of tiles instead than tearing off the old ones. Placing a 2nd layer catches wetness, which can significantly decrease the life expectancy of the shingles, ultimately setting you back much more in the long run. While including another layer might appear less costly upfront, the prospective damages and the lowered roof life may make it much less of a bargain than it appears.

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