Rooftop Grease Containment in Boston

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Rooftop Grease Containment [location]

Comprehensive Guide to Rooftop Grease Containment

A proper rooftop grease containment system is essential for every commercial kitchen. It ensures that your facility remains safe, clean, and compliant with regulations. In this comprehensive guide, we will discuss the importance of rooftop grease containment, how these systems work, and how to choose, maintain, and benefit from a well-designed system.

Why Rooftop Grease Containment Matters

Rooftop grease containment is crucial for several reasons:

  • Safety: Grease accumulation on your roof can create a fire hazard, putting your business and employees at risk.
  • Environmental protection: Proper containment prevents grease from contaminating stormwater systems and the environment.
  • Regulatory compliance: Many jurisdictions require rooftop grease containment systems to comply with local and federal regulations.
  • Roof protection: Accumulated grease can cause damage to roofing materials, leading to costly repairs and potential roof leaks.

How Rooftop Grease Containment Systems Work

A rooftop grease containment system typically consists of the following components:

  1. Grease exhaust fan: This fan removes grease-laden air from your kitchen’s exhaust hood and ductwork.
  2. Grease box or catch pan: Located beneath the exhaust fan, this container collects grease before it can reach your roof.
  3. Grease filters: These filters capture grease particles from the exhaust fan’s airstream.
  4. Absorbent pads: Placed in the catch pan or grease box, these pads absorb and retain grease, allowing water to pass through.
  5. Drainage system: This system channels rainwater and melted grease away from the containment area, preventing overflow.

Choosing the Right Rooftop Grease Containment System

When selecting a rooftop grease containment system, consider the following factors:

  • Size and capacity: Ensure the system can handle the volume of grease your kitchen produces.
  • Material quality: Choose a system made of durable, corrosion-resistant materials, such as stainless steel or heavy-duty plastic.
  • Ease of installation: A well-designed system should be easy to install and compatible with your existing exhaust fan and ductwork.
  • Maintenance requirements: Look for a system that is easy to clean, with accessible grease filters and absorbent pads.

Maintaining Your Rooftop Grease Containment System

Regular maintenance is crucial for the effectiveness and longevity of your rooftop grease containment system. Follow these steps to ensure optimal performance:

  1. Inspect the system regularly: Check for grease buildup, damage, or wear on a monthly basis or as required by local regulations.
  2. Replace absorbent pads: Change absorbent pads as needed, depending on grease volume and pad saturation.
  3. Clean the grease box or catch pan: Remove and dispose of accumulated grease according to local guidelines. Clean the container using a degreaser and hot water.
  4. Replace or clean grease filters: Follow the manufacturer’s recommendations for filter replacement or cleaning.
  5. Inspect the drainage system: Ensure that the drainage system is clear of debris and functioning properly.

Benefits of a Well-Designed Rooftop Grease Containment System

Investing in a high-quality rooftop grease containment system offers several advantages:

  • Increased safety: By reducing the risk of rooftop fires, you create a safer environment for employees and customers.
  • Regulatory compliance: Proper containment helps you meet local and federal regulations, avoiding fines and penalties.
  • Roof longevity: Protecting your roof from grease damage extends its lifespan, saving you money on repairs and replacements.
  • Environmental responsibility: Preventing grease contamination of stormwater systems and the environment demonstrates your commitment to sustainability.

Common Challenges and Solutions

Rooftop grease containment systems can present some challenges, but with proper planning and maintenance, these can be easily addressed:

  • Grease overflow: Regularly inspect and clean your system to prevent overflow and potential roof damage.
  • Odor control: Ensure that your exhaust fan is functioning properly, and consider installing carbon filters to help control odors.
  • Harsh weather conditions: Select a rooftop grease containment system designed to withstand extreme temperatures, heavy rain, and snow.
  • Inadequate system capacity: Ensure that your system is sized correctly for your kitchen’s grease output, and consider upgrading if necessary.


A well-designed rooftop grease containment system is essential for the safety, compliance, and longevity of your commercial kitchen. By understanding the components, choosing the right system, and maintaining it properly, you can protect your investment and create a cleaner, more environmentally responsible business.

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