Why do modified bitumen roofs have noticeable lines and overlaps, and can they be minimized?

Lines and overlaps come from sheet installation for watertightness—functional, not flaws. A Reddit r/Roofing user questioned their new roof’s appearance, expecting less visibility. Darker colors can reduce noticeability, or opt for seamless alternatives like spray foam. It’s a design feature, not a defect, as roofing pros explain, addressing aesthetic concerns from homeowners.

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