Standing Water vs. Ponding Water: The 48-Hour Rule for Commercial Flat Roofs

ponding water on commercial flat roof

A puddle on a commercial roof right after a storm is not unusual. A puddle that is still there two days later deserves a closer look. For property owners and managers, that distinction matters. Water that repeatedly sits on a low-slope roof may point to a clogged drain, compressed insulation, poor slope, damaged roofing materials, […]