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When re-roofing, should I peel off old layers or simply add a new layer of shingles?
It is best recommended to add a new layer of shingles to your roof. Scrapping the old layers will just consume more time and energy, and at the same time by peeling off, the thickness of the shingles are decreasing, leading to possible leakages in the future. By adding new layers of shingles into your roof, it protects the inner part of the roof and providing you relief against further leakages. Plus, it would be a lot cheaper.
--- permission must be obtained from author Rae Fakner to re-publish ---
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