Illinois Booth Exhaust Systems for Long Booths and Busy Lines
In long booths built for trailers and truck bodies, the exhaust system has to pull evenly from one end to the other. Uneven exhaust leaves dead spots where overspray hangs and settles on the finish. Double D Mechanical installs, replaces and balances booth exhaust systems for Illinois plants, from the filter plenum through the fan to the stack.
Discuss your installationEven Draw Along a Long Booth
Trailer plants like Hyundai Translead's in Will County, and the fleet and component shops around Chicago, often run booths long enough that a single fan connection cannot pull evenly. Multiple exhaust plenums, balanced duct takeoffs or more than one fan keep airflow uniform along the booth. We measure airflow at multiple points along the length during startup and adjust dampers until the draw is even.
Roof Penetrations in Cold Weather
Exhaust stacks through the roof need proper curbs and flashing to stay watertight through freeze and thaw cycles. Uninsulated duct running through cold spaces can collect condensation in some conditions. We coordinate curb and flashing work with your roofer and plan duct routing to limit exposure.
Airflow Tests That Tell the Truth
We do not rely on fan nameplates. Booth exhaust performance is confirmed by measurement.
- Airflow readings across the booth face or filter bank
- Static pressure at the fan inlet and across filters
- Fan speed and motor amperage
- Booth pressure relative to the building
- Comparison with the booth's design airflow
Service for Aging Exhaust
Common repairs include fan bearing and belt replacement, motor replacement, damaged duct repair, filter frame sealing and damper repair. Each one restores airflow that the booth has slowly been losing.
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
Why does overspray settle at one end of our booth?
Uneven exhaust along the booth length leaves low-airflow zones. Rebalancing or adding exhaust points can fix it.
Can one fan serve a long booth?
Sometimes, with a properly designed plenum and duct. Very long booths often use multiple fans or connections.
Should exhaust duct be insulated?
It depends on routing and conditions. Duct passing through cold spaces may benefit from insulation to limit condensation.
How do we know our exhaust fan is the right size?
Airflow and static pressure measurements compared with booth design requirements show whether the fan is adequate.