Northern Illinois Seamless Roofing, Inc.

Ponding water on commercial roofs, especially flat roofs, poses significant risks for property owners and managers. If not addressed promptly, this issue can lead to accelerated deterioration of roofing materials, structural damage, and leaks, potentially affecting the integrity of the entire building. Read on as Northern Illinois Seamless Roofing, Inc. shares the causes and solutions for ponding water issues to ensure a healthy, functional roofing system.

The Risks of Ponding Water

Ponding water occurs when water remains on the roof surface for more than 48 hours after rain events. This situation can arise due to inadequate drainage, improper roof installation, or structural issues that prevent water from draining efficiently. The risks associated with ponding include the accelerated wear and tear of roofing membranes, an increased likelihood of leaks, and the potential for structural damage due to prolonged exposure to water.

Effective Drainage Solutions

One of the primary solutions to prevent ponding water on commercial roofs is ensuring proper drainage. This might involve cleaning and flushing existing roof drains to remove debris that can clog the system. In some cases, installing additional drains or scuppers may be necessary, especially if the current drainage system is insufficient for the roof’s size or design. These modifications can significantly improve water flow and prevent accumulation.

Silicone-Based and Other Repairs

Silicone roof coatings are an effective solution for areas prone to ponding, as they can withstand prolonged exposure to standing water. This method involves applying a silicone-based product over the affected area, providing a waterproof layer that protects the underlying materials. In situations where the ponding is due to low spots or uneven roof surfaces, cutting out the old membrane and installing roof crickets made of rigid foam can help redirect water flow. Alternatively, spray polyurethane foam (SPF) can be applied to even out low areas and facilitate proper drainage.

Re-Pitching and Membrane Overlays

For commercial roofs severely affected by ponding due to inadequate pitch or widespread low areas, more comprehensive solutions might be necessary. Re-pitching the roof with a new tapered insulation system can address fundamental drainage problems by creating the slopes needed for water to flow toward drains. If the existing roofing material is also nearing the end of its lifespan, a membrane overlay, incorporating crickets and a new, properly sloped layer, can solve both the ponding and wear issues simultaneously.

Regular Maintenance and Inspection

Preventative maintenance is key to avoiding ponding water issues. Regular maintenance activities, such as clearing debris from drains and checking for potential drainage blockages, can help. Professional roof inspections can also identify areas vulnerable to ponding early on, allowing for timely interventions before significant damage occurs.

Trust Us for Your Commercial Roofing Needs

Ponding water on commercial roofs requires immediate attention to prevent long-term damage to the building structure. For assistance with roof maintenance or ponding water issues, don’t hesitate to contact Northern Illinois Seamless Roofing, Inc. With our top-notch roofing services, rest assured that your home is in capable hands. Call us today at (815) 539-5142 or fill out our online form to schedule an appointment.