Commercial calculator · Northwest Ohio
Restaurant roof degreasing calculator
Grease from kitchen exhaust fans softens many roof membranes and becomes a fire and slip hazard. Plan regular rooftop grease cleanups and containment at each fan, with ranges from our Northwest Ohio settings.
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Fill in the roof and press Calculate.
Grease on Northwest Ohio restaurant roofs
Animal fats and cooking oils from exhaust fans attack many roofing membranes, especially EPDM rubber and asphalt-based roofs, and soften them until they split or blister. Grease also collects dirt, clogs drains and makes the roof slippery for anyone servicing equipment, which matters on icy Northwest Ohio winter days.
Containment at each fan catches most of the grease before it reaches the membrane, and regular cleanups keep what gets past from building up. Kitchen exhaust hood and duct cleaning is a separate fire-safety service handled by kitchen exhaust cleaners under NFPA 96; this calculator covers the roof surface. If the membrane is already soft or blistered, a roofer should inspect it before it is only cleaned.
Sources for these planning settings
Each range on this page runs from the lowest to the highest figure in these published sources. 1 of them is from Ohio; the rest are national figures. The ranges are the site owner's provisional planning settings, not a Northwest Ohio market average and not a quote. Get written proposals for real prices.
- National Reducing rooftop risk (Retail & Restaurant Facility Business): Exhaust grease shields about $300–$600 per unit; many restaurants need quarterly rooftop cleanups
- National Grease containment and grease boxes (Restaurant Accessories Store by CJ's): Rooftop grease containment products about $265–$629 each, before installation
- Toledo, Ohio Pressure washing contractors in Toledo, OH (BlastTrader): Toledo exterior cleaning about $0.15–$0.80 per sq ft
- National Commercial pressure washing prices (HomeGuide): About $0.10–$1.00 per sq ft; many jobs have flat fees from about $200
How to use this tool
- Count the kitchen exhaust fans on the roof and how many lack grease containment.
- Measure the stained or slick area around the fans.
- Set cleanups per year; many restaurants need them quarterly.
- Budget containment once and cleanups every year.
Restaurant corridors in Northwest Ohio
Restaurants along busy commercial corridors in Toledo, Perrysburg, Findlay and Bowling Green often share long retail roofs, so grease from one kitchen can damage the roof over several tenants. Owners and landlords should agree who handles containment and cleanups.
Grease control options
| Option | What it does | Our planning setting |
|---|---|---|
| Containment at each fan | Catches grease before it reaches the roof | $265–$630 per fan, one time |
| Regular cleanups | Removes grease that gets past | Commercial washing setting per cleanup |
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Have the roof you're worried about looked at in person, at no cost and with no obligation. Homes, commercial buildings and HOA communities in Ohio and Michigan.
Inspections are done by our founder, Jonathan Blake, or, if you allow it, by the independent roofing and exterior contractor he works for.
Get three comparable bids
- Save or print this tool's result so every contractor starts from the same numbers.
- Ask at least three contractors for a written proposal on the same scope.
- Compare line by line: area, tear-off, repairs, materials, permits, warranty.
Why plan here first
| What you get | Midwest Roof Calculators | National cost websites | A first number on the doorstep |
|---|---|---|---|
| Built for Ohio and Michigan weather and permits | Yes | Rarely | Varies |
| Shows the formula and every assumption | Yes | Sometimes | Rarely |
| See results before giving contact details | Yes | Often not | No |
| Ranges labeled with what they include and exclude | Yes | Varies | Varies |
| Questions to ask every contractor | Yes | Sometimes | No |
| Replaces an in-person inspection | No, and we say so | No | No |
General comparison of approaches, not of any named company.
Frequently asked questions
Why is kitchen grease bad for a roof?
Animal fats and cooking oils soften many membranes, especially EPDM and asphalt-based roofs, until they split or blister. Grease also clogs drains and makes the roof slippery.
How often should rooftop grease be cleaned?
Many restaurants need rooftop cleanups quarterly, and some more often. The calculator defaults to four a year.
What is grease containment?
A pad, box or filter system at each exhaust fan that catches grease before it reaches the roof. Our planning setting is $265 to $630 per fan, from published product prices and an industry article (national sources); installation can add to it.
Want someone to look at the grease on your roof?
Takes about 30 seconds. No obligation, and we never sell your information.