A grease containment system is a critical component in maintaining a safe and functional commercial kitchen. However, these systems are not foolproof, and failures can lead to costly roof damage, fire hazards, and compliance issues. The reasons behind these failures often fall into three categories: not having the right equipment, service-related failures, or third-party interference. By understanding these failure points and taking proactive measures, businesses can ensure their grease containment system remains effective and reliable.
1. Equipment Issues
Failures related to equipment can occur when the system is the incorrect type or size, or if it is installed improperly. A grease containment system should be purposely placed on the roof with consideration of what else is on the roof. A more complicated grease containment system does not mean it is best—introducing more obstacles to the rooftop increases risks. A 360-degree system is only needed if the outcome requires it. Over-designing a grease containment system is not recommended.
Additionally, a change in a store’s volume of sales can impact grease containment needs. Do you have the right containment for your current sales volume? Understanding the demands of your location is key.
2. Service-Related Failures
A grease containment system must be serviced and maintained as intended. Failures occur when service is inconsistent, improperly timed, or poorly executed. Common service-related issues include:
Not being serviced at the proper frequency
Loose fittings that allow grease to drip out
Poor workmanship leading to leaks, overflow, or damage
91% of grease containment failures are from inconsistent or wrong service intervals. Success is not just about the equipment—it depends on proper service. If a containment tray overflows between services, grease will impact the roof. The ventilator condition also plays a role; damaged or missing gaskets can cause grease to bypass the containment system completely. Poor workmanship, like failing to reinstall a removed containment tray, can lead to failure as well.
3. Third-Party Interference
The most common third-party issue is hood cleaners removing degreaser from the hood, allowing water to flow into the containment tray, rendering the system ineffective. Additionally, hood cleaners may remove or damage containment trays during service, which leads to system failure.
When considering new grease containment technologies, be cautious of new “promising” solutions that claim to be redesigning the mousetrap. These new systems often solve one issue but create another. For example, a 360-degree rooftop containment system may not be necessary for all locations and could introduce new risks. If installed on the roof field instead of mounted to the ventilator, it may create a trip or fall hazard, leading to potential injuries and damage to the roof or surrounding equipment.
GreaseCare is a fixed-price program that offers a reliable way to avoid costly roof membrane repairs, minimize risks, and maintain regulatory compliance through rooftop grease containment and routine removal. Need to have your restaurant’s rooftop grease assessed? Contact us online or call at (833) 446-8849.
Written by
Joe Reeder
Client Advisor
joe.reeder@roofingsource.com
