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Definition of Fishmouth
1. Noun. (context: roofing) a half-cylindrical or half-conical shaped opening or void in a lapped edge or seam, usually caused by wrinkling or shifting of ply sheets during installation. ¹
¹ Source: wiktionary.com
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1. Noun. (context: roofing) a half-cylindrical or half-conical shaped opening or void in a lapped edge or seam, usually caused by wrinkling or shifting of ply sheets during installation. ¹
¹ Source: wiktionary.com