Queens Flat Roof Coating solves ponding water, the standing pools that sit on a flat roof long after the rain has stopped. Ponding is one of the most common and damaging problems on the low-slope roofs across Queens, because standing water works its way into any weak seam and accelerates the roof's decay. We address it by building up the low areas to improve drainage and then coating the roof in silicone, the one membrane that stays fully waterproof underwater. It is a targeted fix for a problem most coatings simply cannot handle.
Water that sits for days finds every weakness, seeping into open seams, softening the membrane, and adding heavy load to the roof. Standing pools also collect dirt and grow algae, and they magnify the sun's UV through the water onto the surface below. Left alone, ponding shortens the life of a flat roof more than almost any other condition.
Most coatings, including acrylic, soften or re-emulsify if they are left submerged, so they cannot be trusted in a ponding area. Silicone is the exception, staying completely waterproof even under water that never fully drains. That is why every ponding solution we build finishes with a silicone membrane over the low spots.
Where a roof holds water, we build the low areas up with a roofing filler or tapered material to encourage water toward the drains rather than letting it collect. Clearing and reinforcing the drains and scuppers helps the roof shed water the way it should. Improving the drainage and then coating in silicone attacks the problem from both directions.
Standing-water problems are our specialty across Queens, especially on the older low-slope roofs of Maspeth, Long Island City, Sunnyside, Jackson Heights, and Astoria.