What is ViroGuard?

The Perfect Solution for Rooftop Grease

ViroGuard is a cutting-edge, environmentally friendly containment system designed to protect your roof from damaging grease and waste. We designed ViroGuard to work seamlessly with any rooftop fan installation and solve the problems associated with outdated grease collection methods.

As one of the nation's leading kitchen exhaust cleaning companies, we developed this patented system with the duct cleaner in mind. It replaces messy, expensive pads, eliminates the burden of monthly maintenance costs, and keeps your roof clean and safe.

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Prevents Leakage & Protects Your Roof

Catches all grease discharge and wash water, preventing roof damage and staining.

Exclusive Rain Shield

Keeps a majority of rain and snow out. Tested for 10–15 inch rainfalls without overflow.

20-Year Roof Warranty

ViroGuard carries a 20-year warranty against grease leakage. Made to last a lifetime.

EPA Clean Water Act Compliant

Full compliance with EPA Clean Water Act requirements for grease discharge containment.

Weatherproof Ball Valve Drain

PVC custom ball valve with galvanized backup drain plug resists grease and withstands all weather.

304 Stainless Steel Construction

Built from 304 stainless steel — corrosion resistant, durable, and designed to outlast your building.

Why ViroGuard Wins

Compared to Traditional Pad Systems

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No More Monthly Costs

Pad and diaper systems require ongoing monthly purchases and labor. ViroGuard installs once and requires no ongoing supply costs.

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Cleaned with Regular Service

ViroGuard is cleaned during your normal quarterly exhaust cleaning cycle — no special maintenance schedule or extra service visits required.

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Roof Stays Protected Always

Unlike pads that can overflow, blow away, or miss grease entirely, ViroGuard is a self-contained system. No grease ever gets on the roof.

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Cold Weather Performance

ViroGuard contains grease and cleaning solution even in below-freezing temperatures — no icy roof hazards or frozen pad problems.

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Virospec Hinges Included

Installation includes extra-strength stainless steel Virospec hinges, ensuring your fan is properly hinged and protected during all future cleanings.

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Easy HVAC Contractor Install

Any competent HVAC contractor can install the unit easily using our step-by-step installation guide and basic tools. Includes re-wiring.

FAQs

Common Questions About ViroGuard

How often do I have to clean the ViroGuard?

ViroGuard is only cleaned during your normal exhaust cleaning cycle (quarterly for most restaurants). There is no special maintenance schedule for ViroGuard.

Do I have to run the grease onto the roof when the ViroGuard is cleaned?

Absolutely not. Unlike all other units on the market, ViroGuard can be cleaned without running grease onto the roof. The roof is protected before, during, and after cleaning.

Are there ongoing costs or charges after installation?

There are no ongoing costs or charges. Once you install ViroGuard, your rooftop grease problem is solved. Just have your cleaning company clean it at the same time they clean the exhaust system. In fact, it should save you money on roof cleanup as all grease and cleaning solution is contained.

Does the ViroGuard require any servicing or adjustment?

ViroGuard does not require any servicing other than normal cleaning. There is nothing to inspect or replace on a regular basis.

How long does ViroGuard last?

Made of 304 stainless steel, ViroGuard will last a lifetime. Barring some unforeseen disaster, it should never need to be replaced.

Do I need to put pads or diapers around the ViroGuard?

No pads or diapers are needed. ViroGuard is a self-contained unit that holds the grease until it is drained. No grease ever gets on the roof.

Who can install a ViroGuard? How difficult is installation?

Any competent HVAC contractor can install the unit easily by following our step-by-step installation guide using basic tools. Installation also includes re-wiring the fan.

If I get a ViroGuard, do I have to buy hinges for my fan?

The installation process includes extra-strength stainless steel Virospec hinges that ensure your fan will not be damaged during exhaust cleaning.

Where can I see an installed ViroGuard?

We have installed hundreds of ViroGuards throughout the US. Just call us at 1-800-325-8476 or fill out the contact form to find the location of the ViroGuard nearest you.

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ViroGuard™ Rooftop Grease Containment System