Ponding water on roofs with architectural shingles occurs when water collects and stands for extended periods instead of draining properly. This situation often arises because of design issues such as low slopes, improper roof pitch, or drainage system blockages like clogged gutters or downspouts. Architectural shingles themselves are designed to shed water efficiently, but if water pools for more than 48 hours, it can lead to premature wear, algae growth, and even leaks. Simple diagnostics include visually inspecting the roof after rainfall to spot standing water, checking gutters and downspouts for debris, and looking for signs of shingle curling, granule loss, or dark streaks that indicate moisture retention. Homeowners can safely walk around the perimeter to check drainage flow but should avoid climbing on slippery surfaces to prevent accidents.
If you notice ponding water or suspect drainage problems, it’s wise to call a roofer to evaluate the roof’s slope, condition, and drainage system thoroughly. Professional inspection can determine if adjustments like adding tapered insulation or improving gutters are necessary. When consulting a contractor, ask whether they guarantee that their repairs will prevent water ponding and if the work will maintain your roofing materials’ warranty. Additionally, inquire about the type of shingles and underlayment they recommend, as some products handle standing water better than others. With the right approach, you can protect your architectural shingles from damage caused by ponding water and extend the lifespan of your roof safely and effectively.