EPDM (Ethylene Propylene Diene Monomer) roofing is renowned for its durability and excellent water resistance.
However, like any roofing material, it’s important to manage water pooling effectively to maintain its integrity.
Here’s what you need to know about water sitting on an EPDM roof.
Water Resistance of EPDM
EPDM is designed to be highly resistant to water, making it an ideal choice for flat and low-slope roofs. Its rubber-like properties allow it to withstand various weather conditions, including heavy rainfall and snow.
The Issue of Water Pooling
While EPDM is water-resistant, standing water or pooling can still pose challenges:
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Structural Shifts: Over time, buildings may settle or shift, causing depressions or low spots on the roof. These areas can collect water, leading to pooling.
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Membrane Stress: Prolonged water pooling can put stress on the EPDM membrane. Although EPDM is durable, constant exposure to standing water can increase the risk of membrane degradation or damage over time.
Preventing and Managing Water Pooling
To ensure the longevity and performance of your EPDM roof, it’s essential to address any pooling water:
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Regular Inspections: Conduct regular roof inspections to identify any areas where water is pooling. Early detection allows for timely repairs and maintenance.
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Proper Drainage: Ensure that your roof has an adequate drainage system. Gutters, downspouts, and scuppers should be clear and functional to facilitate proper water flow.
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Roof Slope Adjustments: If pooling is persistent, you might need to adjust the roof slope. Adding crickets or tapered insulation can help redirect water towards drainage points.
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Professional Assessment: For significant pooling issues, consult with a roofing professional. They can provide expert advice and solutions tailored to your specific roof structure.
Conclusion
While EPDM roofing boasts excellent water resistance, it’s crucial to manage and prevent water pooling to maintain its effectiveness. Regular maintenance and proper drainage systems are key to avoiding stress on the EPDM membrane and ensuring a long-lasting, durable roof.
By staying proactive and addressing any pooling issues promptly, you can protect your EPDM roof and enjoy its benefits for many years to come.