Illinois Crossdraft Booths: Simple Airflow, Serious Winter Planning
Crossdraft booths are the workhorses of Illinois fabrication shops. They are affordable, they fit in existing bays, and their horizontal airflow is easy to understand: in through the front doors, across the part, out the back. The part that gets underestimated is where all that air comes from in February. Double D Mechanical installs crossdraft booths with the make-up air, exhaust and utilities planned for Illinois weather.
Discuss your installationA Fabrication Market Around Chicago
Large projects like the Hyundai Translead trailer plants in Will County support a wide supply chain of fabricators painting brackets, frames, crossmembers and assemblies. Most of that work needs a durable, consistent coating rather than a show finish, which is exactly where crossdraft booths earn their place.
The Cost of Skipping Make-Up Air
In winter, a crossdraft booth without its own heated air supply pulls warm air out of the plant and replaces it with cold air leaking in around docks and doors. Workers feel the draft, heating bills climb, and the booth's own airflow suffers because it is fighting the building. Adding a heated make-up air unit that feeds the booth intake fixes all three problems at once.
- Direct or indirect gas-fired unit sized to the booth exhaust
- Intake plenum on the booth doors, or supply into the room near the booth
- Controls that start make-up air whenever the exhaust fan runs
- Freeze protection where intake air passes near water or coils
Stacks, Snow and Roof Work
Exhaust stacks and roof curbs should go in during weather that allows roofing to be sealed properly. Stack height and location matter for keeping exhaust away from rooftop intakes and neighboring buildings. Snow and ice load on rooftop make-up air units and stacks is part of support design, and we plan access so filters can be serviced in winter.
Common Service Calls
We see the same crossdraft problems repeatedly: burners that lock out on cold mornings, fan belts slipping, doors that no longer seal, and exhaust filters left too long. Each one affects airflow, and airflow is what keeps overspray off the next part and out of the shop. A planned service visit before winter catches most of them.
Planning a booth or oven project in Illinois
Crews mobilize from Houston; Illinois is roughly 950 miles away, so equipment, panels and tooling are staged and shipped ahead of the install crew.
Manufacturing in Illinois is concentrated around Chicago, Peoria, Rockford, and Champaign. The sectors most likely to be specifying spray booths, blast rooms, powder systems and cure ovens there include heavy equipment and machinery, food processing, metal fabrication, and transportation equipment.
Cold winters mean make-up air heaters are sized for sub-freezing intake, and booth or oven placement has to account for frost lines, snow loads on roof penetrations and winter slab work.
Frequently asked questions
Can a crossdraft booth run without make-up air in winter?
It can, but it pulls heated air from the building and leaves the plant negative. For production booths, a heated make-up air unit is the better approach.
Where should the exhaust stack go?
Away from rooftop air intakes, doors and windows, and high enough to carry exhaust clear of the building. Local requirements may set specifics.
How is a crossdraft booth different from an open face booth?
A crossdraft booth is fully enclosed with doors at the front, so air enters through door filters. An open face booth has no front wall and draws air directly from the shop.
Can you install a booth in a building we lease?
Yes, with the landlord's approval for roof or wall penetrations. Crossdraft booths need no floor work, which helps in leased space.
What does a pre-winter service include?
Burner ignition and flame checks, fan and belt inspection, filter changes, door seal checks and confirming the make-up air and exhaust interlock.