Blog

HOODMART BLOG

Rooftop Grease Buildup and How To Prevent It
• Julio 27, 2026
Categorías: Hoods
Rooftop Grease Buildup: Causes, Risks, and How to Prevent It
Rooftop grease buildup is a common (and often overlooked!) issue in commercial kitchens. If your commercial kitchen exhaust hood system isn’t properly maintained, grease can escape through the system and accumulate on your roof, leading to safety hazards, code violations, and costly damage.
Here’s what causes it, and how to prevent it.
What Causes Rooftop Grease Buildup?
Your restaurant hood system is designed to capture grease-laden vapors during cooking. However, not all grease is contained. Over time, excess grease travels through:
• Hood filters
• Ductwork
• Exhaust fans
Eventually, this grease can reach the rooftop, especially if there are system inefficiencies or maintenance gaps.
How Grease Escapes Your Exhaust System
Even a properly functioning commercial range hood system can allow small amounts of grease to pass through.
Common causes include:
• Filter Inefficiency: Dirty or clogged filters allow grease to bypass capture
• Duct Accumulation: Grease builds up and moves through the system over time
• Fan Base Overflow: Excess grease collects and spills onto the roof
The Most Common Culprits
1. Exhaust Fan Leaks: Improper sealing around fan joints ca...
   
learn more

Roof Curbs for Exhaust Fans: A Complete Guide
• Julio 20, 2026
Categorías: Fans
A roof curb might look simple, but it plays a critical role in your commercial kitchen ventilation system. If you’re installing an upblast exhaust fan, choosing the right roof curb for an exhaust fan ensures proper support, weather protection, ...

learn more

Hood Placement and Clearance to Combustibles - What it Means & Why it Matters
• Julio 13, 2026
Categorías: Hoods
Getting hood placement and clearance right isn’t optional; it’s critical for safety, performance, and passing inspection. In this guide, HoodMart breaks down commercial kitchen hood clearance requirements, what “clearance to combus...

learn more

Commercial Hood Fire Suppression Systems: How They Protect Your Kitchen
• Julio 09, 2026
Categorías: Fire Suppression
While ventilation hoods help manage smoke and heat, they also play a critical role in fire protection when paired with an integrated suppression system. A commercial hood fire suppression system is designed to detect and stop fires at their source, o...

learn more

What are the Food Truck Range Hood Requirements?
• Julio 06, 2026
Categorías: Hoods
As a commercial kitchen exhaust hood manufacturer, the team at Hoodmart often get asked about the exhaust hood requirements for food trucks. In this blog post, we will provide some general guidance on what these requirements might entail.   Fi...

learn more