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Roof Enemy #1: Ponding Water

Sponsored by T here are two ways water can leave a roof — positive drainage or evaporation. When neither can occur quickly enough, the result is ponding water. Ponding water is defined as any water remaining on a roof 48 hours after a rain. Any building with a flat...

Roof Enemy #1: Ponding Water

Sponsored by T here are two ways water can leave a roof — positive drainage or evaporation. When neither can occur quickly enough, the result is ponding water. Ponding water is defined as any water remaining on a roof 48 hours after a rain. Any building with a flat...