![]() When a membrane is compromised it allows water to access the vulnerable insulation that lies beneath the membrane. Splits, cracks, blisters, and punctures are all common problems. Yet like any roofing system, membranes are subject to damage as time goes on. Roofing membranes offer a highly effective form of protection. The simplicity of such membranes makes them both less expensive and easier to install. These consist of a thin, single-ply membrane, generally made of durable rubber. These days, so-called roofing membranes are an increasingly popular choice. While effective, built up roofing is laborious and time-consuming to install. These layers can include roofing felt, asphalt tar, and gravel. This style of roof involves the application of multiple layers of materials. Once upon a time, most flat roofs were composed of what is known as built-up roofing. More serious instances of ponding may require changes to the underlying roof. As long as the issue is still minor, roof leveling compounds can help to restore the flatness necessary for proper drainage. That’s because the additional weight of the water will only make the problem worse as time goes on. This can lead to the formation of a ponding area.īe aware that, even if it has not yet led to a leak, ponding represents a significant roofing problem. The weight of such structures tends to deflect the structure of the underlying roofing supports. Also, be aware that ponding is more likely to occur around large rooftop units such as air conditioners and water tanks. These might include gutters, downspouts, and wall scuppers which can lead to ponding if they are not functioning correctly. Likewise, other parts of the drainage system could become the culprit. Ponding commonly occurs around roofing drains that have become excessively choked with debris. It is important to monitor your roof on a regular basis for any signs of standing water. The longer water is allowed to remain on your roof, the greater the chances that it will lead to damaging leaks. Yet even flat roofs that are well designed can find themselves struggling with ponding down the line. This allows the water to easily find its way to the drain points. Ideally, the roof should be designed with a slight slope. As defined by the National Roofing Contractors Association, ponding is characterized as any water that remains on the roof for longer than 48 hours following precipitation. ![]() Ponding represents perhaps the single greatest threat facing a flat roof. This article will discuss three of the most common causes of flat commercial roof leaks. If you own a commercial property that has a flat roof and would like to educate yourself about the threat of roof leaks then read on. Flat roof leaks are among the most common and the most undesirable. Yet like all roofing styles, flat roofs are subject to certain problems as time goes on. They also make roof and building repairs a much less daunting task. They allow a convenient location for the installation of HVAC components. Flat roofs are a feature of many commercial buildings.
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