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Union County Roofers: Article About Standing Water

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Standing water is water that has been on a roof for more than 48 hours. A small puddle of water on a roof may not seem like it's a big deal, but standing water tends to grow larger over time, and it can cause a number of problems. When water stays on a roof, leaks are more likely to develop, the roof may being to sag under it, and enough weight could even cause a partial roofing collapse.

There are several reasons that standing water may develop. If a roof was not installed properly, there may be depressions in it, which are areas that water may collect. Clogged gutters may prevent water from flowing to the downspout and off of the roof, so it may just pool near the gutters.

In some cases, there are sections of a roof that water will not easily flow from even if the roof was put in correctly. Behind a chimney or where two sections of a roof meet are common examples. Union County roofers can install crickets to help deal with standing water in these places.

Standing water will usually continue to grow larger over time because it is very heavy.

Have a question regarding gutters or commercial roofing? Please ask the roofing contractors from Peter W Smith Construction of Union County NJ today.

A single inch of standing water over a square foot weighs 5 pounds. Weight on the roof can cause it to sag, and this depression will allow more water to collect, which will add greater weight to the existing depression.

As the amount of area that water collects grows larger, the depression is also liable to grow. This can lead to hundreds or even thousands of additional pounds of weight on a roof. Enough weight can exceed the roof's load bearing capacity, which may cause a collapse.

Issues related to standing water aren't just related to the weight it can put on a roof. Roofs are designed to keep water from making its way into a home where it can cause damage, but they aren't designed to repel water that stays in the same place. Roofs are inclined so that water keeps moving, and even a so called flat roof will have a few degrees of incline.

When water sits on asphalt shingles, it has time to start working its way through gaps in the shingles and pinhole imperfections in the shingles. Once the water is past the shingles, there is little work required to get past the roof deck, which is made of plywood and offers almost no resistance to water.

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