Water Pooling On Flat Roof

In two areas there is ponding of water that doesn t seem to drain away and takes a long time to clear whereas the remainder of the roof seems to dry out quite quickly.

Water pooling on flat roof. According to the national roofing contractors association pooled water in excess of 48 hours can start to become problematic. Both our builder and the roofing contractor have reassured us that this isn t a problem but we have already had 2 roof leaks in the 3 months or so it s been on. How to fix water puddling on a flat roof 1. Improving a flat roof drain system on a flat roof will extend the life expectancy and less maintenance over the years needed.

After any rainfall lands on a flat roof water will begin to pool. We have had a fibre glass flat roof installed on a new extension we ve had built. After the 2 days the water is going to start sinking into the roof system. The weight of the water pooling on a roof can cause the joists to bow and in turn cause more water to accumulate.

Despite the fact that they are called flat roofs commercial flat roofs aren t always completely flat. Use the utility knife to cut a. The water pools after days or hours of steady precipitation due to a variety of causes such as a clogged drain or structural issues that inhibit drainage. Pooling of water on flat roof.

How to stop water pooling on flat roof flush existing drains. This means that once the rain stops you have about 2 days to get rid of the standing water or puddles that are on the roof. Ask your sarasota area roofing contractor if you need to install crickets which are triangles of insulation which steers water flow around these elements. Puddles or ponding water is water from rainstorms and snow melts that collects on a flat roof and doesn t drain or evaporate after 48 hours.

If water is backing onto. Standing water on a flat roof add weight that will affect the structure of the roof. However when your flat roof has uneven areas due to sagging an insufficient slope or drainage issues the ponding water doesn t dissipate. Check the gutters for any backup of debris that could prevent water from draining properly.

Dry the puddled water with old rags or towels and allow the roof exterior to completely air dry. It is is very important to correct this issue before it becomes irreversible and costly repair follows. Air conditioning units skylights or vents placed around the flat roof may stop the intended flow of water and cause pooling or ponding in their vicinity. While this is not an immediate threat over time ponding water will begin to wear on the roofs membrane thus shortening its lifespan.

Ponding water is defined by roofers as water that stands in a puddle on the roof for longer than 48 hours. Like the drains that live in your home drains on commercial roofs can eventually become clogged. Flat roofs do not drain as effectively as pitched roofs.